/*  Prototype JavaScript framework, version 1.6.0.2
 *  (c) 2005-2008 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.0.2',

  Browser: {
    IE:     !!(window.attachEvent && !window.opera),
    Opera:  !!window.opera,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },

  BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div').__proto__ &&
      document.createElement('div').__proto__ !==
        document.createElement('form').__proto__
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;

    return klass;
  }
};

Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value, value = Object.extend((function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method), {
          valueOf:  function() { return method },
          toString: function() { return method.toString() }
        });
      }
      this.prototype[property] = value;
    }

    return this;
  }
};

var Abstract = { };

Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (Object.isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : String(object);
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (!Object.isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  },

  toQueryString: function(object) {
    return $H(object).toQueryString();
  },

  toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },

  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

  clone: function(object) {
    return Object.extend({ }, object);
  },

  isElement: function(object) {
    return object && object.nodeType == 1;
  },

  isArray: function(object) {
    return object != null && typeof object == "object" &&
      'splice' in object && 'join' in object;
  },

  isHash: function(object) {
    return object instanceof Hash;
  },

  isFunction: function(object) {
    return typeof object == "function";
  },

  isString: function(object) {
    return typeof object == "string";
  },

  isNumber: function(object) {
    return typeof object == "number";
  },

  isUndefined: function(object) {
    return typeof object == "undefined";
  }
});

Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
    return names.length == 1 && !names[0] ? [] : names;
  },

  bind: function() {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },

  bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },

  curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },

  delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },

  wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },

  methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});

Function.prototype.defer = Function.prototype.delay.curry(0.01);

Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },

  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

  escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },

  unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },

  toArray: function() {
    return this.split('');
  },

  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

  times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },

  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  },

  capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

  dasherize: function() {
    return this.gsub(/_/,'-');
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },

  toJSON: function() {
    return this.inspect(true);
  },

  unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },

  isJSON: function() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },

  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

  include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },

  startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },

  endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },

  empty: function() {
    return this == '';
  },

  blank: function() {
    return /^\s*$/.test(this);
  },

  interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  },
  unescapeHTML: function() {
    return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});

with (String.prototype.escapeHTML) div.appendChild(text);

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = {
  each: function(iterator, context) {
    var index = 0;
    iterator = iterator.bind(context);
    try {
      this._each(function(value) {
        iterator(value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },

  eachSlice: function(number, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

  all: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator(value, index);
      if (!result) throw $break;
    });
    return result;
  },

  any: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator(value, index))
        throw $break;
    });
    return result;
  },

  collect: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator(value, index));
    });
    return results;
  },

  detect: function(iterator, context) {
    iterator = iterator.bind(context);
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

  findAll: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },

  grep: function(filter, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(filter);

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator(value, index));
    });
    return results;
  },

  include: function(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

  inGroupsOf: function(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  inject: function(memo, iterator, context) {
    iterator = iterator.bind(context);
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },

  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

  max: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },

  min: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  },

  partition: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

  pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },

  reject: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator, context) {
    iterator = iterator.bind(context);
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

  toArray: function() {
    return this.map();
  },

  zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

  size: function() {
    return this.toArray().length;
  },

  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

if (Prototype.Browser.WebKit) {
  $A = function(iterable) {
    if (!iterable) return [];
    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
        iterable.toArray) return iterable.toArray();
    var length = iterable.length || 0, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  };
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

  clear: function() {
    this.length = 0;
    return this;
  },

  first: function() {
    return this[0];
  },

  last: function() {
    return this[this.length - 1];
  },

  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },

  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

  reduce: function() {
    return this.length > 1 ? this : this[0];
  },

  uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },

  intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },

  clone: function() {
    return [].concat(this);
  },

  size: function() {
    return this.length;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },

  toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
  i || (i = 0);
  var length = this.length;
  if (i < 0) i = length + i;
  for (; i < length; i++)
    if (this[i] === item) return i;
  return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
  var n = this.slice(0, i).reverse().indexOf(item);
  return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

  succ: function() {
    return this + 1;
  },

  times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  },

  toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },

  toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});

$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },

    _each: function(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    },

    set: function(key, value) {
      return this._object[key] = value;
    },

    get: function(key) {
      return this._object[key];
    },

    unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },

    toObject: function() {
      return Object.clone(this._object);
    },

    keys: function() {
      return this.pluck('key');
    },

    values: function() {
      return this.pluck('value');
    },

    index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },

    merge: function(object) {
      return this.clone().update(object);
    },

    update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },

    toQueryString: function() {
      return this.map(function(pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return values.map(toQueryPair.curry(key)).join('&');
        }
        return toQueryPair(key, values);
      }).join('&');
    },

    inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },

    toJSON: function() {
      return Object.toJSON(this.toObject());
    },

    clone: function() {
      return new Hash(this);
    }
  }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});

Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      // when GET, append parameters to URL
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    // user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  // DOM level 2 ECMAScript Language Binding
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}

(function() {
  var element = this.Element;
  this.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (Prototype.Browser.IE && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(this.Element, element || { });
}).call(window);

Element.cache = { };

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    $(element).style.display = 'none';
    return element;
  },

  show: function(element) {
    $(element).style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, insert, tagName, childNodes;

    for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

  descendants: function(element) {
    return $(element).select("*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    return Object.isNumber(expression) ? element.descendants()[expression] :
      element.select(expression)[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },

  select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

  adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return $(element).getDimensions().height;
  },

  getWidth: function(element) {
    return $(element).getDimensions().width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!element.hasClassName(className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return element[element.hasClassName(className) ?
      'removeClassName' : 'addClassName'](className);
  },

  // removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    var originalAncestor = ancestor;

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (element.sourceIndex && !Prototype.Browser.Opera) {
      var e = element.sourceIndex, a = ancestor.sourceIndex,
       nextAncestor = ancestor.nextSibling;
      if (!nextAncestor) {
        do { ancestor = ancestor.parentNode; }
        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
      }
      if (nextAncestor && nextAncestor.sourceIndex)
       return (e > a && e < nextAncestor.sourceIndex);
    }

    while (element = element.parentNode)
      if (element == originalAncestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    // All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      // Safari fix
      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    // find page position of source
    source = $(source);
    var p = source.viewportOffset();

    // find coordinate system to use
    element = $(element);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }

    // correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    // set position
    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          // returns '0px' for hidden elements; we want it to return null
          if (!Element.visible(element)) return null;

          // returns the border-box dimensions rather than the content-box
          // dimensions, so we subtract padding and borders from the value
          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  // IE doesn't report offsets correctly for static elements, so we change them
  // to "relative" to get the values, then change them back.
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );

  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        // Trigger hasLayout on the offset parent so that IE6 reports
        // accurate offsetTop and offsetLeft values for position: fixed.
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _flag: function(element, attribute) {
          return $(element).hasAttribute(attribute) ? attribute : null;
        },
        style: function(element) {
          return element.style.cssText.toLowerCase();
        },
        title: function(element) {
          return element.title;
        }
      }
    }
  };

  Element._attributeTranslations.write = {
    names: Object.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  // Safari returns margins on body which is incorrect if the child is absolutely
  // positioned.  For performance reasons, redefine Element#cumulativeOffset for
  // KHTML/WebKit only.
  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
  Element.Methods.update = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);

    content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();

    if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

if ('outerHTML' in document.createElement('div')) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return node && node.specified;
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div').__proto__) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div').__proto__;
  Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
      tagName = element.tagName, property, value;

    // extend methods for specific tags
    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      // extend methods for all tags (Safari doesn't need this)
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    window[klass] = { };
    window[klass].prototype = document.createElement(tagName).__proto__;
    return window[klass];
  }

  if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};

document.viewport = {
  getDimensions: function() {
    var dimensions = { };
    var B = Prototype.Browser;
    $w('width height').each(function(d) {
      var D = d.capitalize();
      dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
        (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
    });
    return dimensions;
  },

  getWidth: function() {
    return this.getDimensions().width;
  },

  getHeight: function() {
    return this.getDimensions().height;
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();
    this.compileMatcher();
  },

  shouldUseXPath: function() {
    if (!Prototype.BrowserFeatures.XPath) return false;

    var e = this.expression;

    // Safari 3 chokes on :*-of-type and :empty
    if (Prototype.Browser.WebKit &&
     (e.include("-of-type") || e.include(":empty")))
      return false;

    // XPath can't do namespaced attributes, nor can it read
    // the "checked" property from DOM nodes
    if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
      return false;

    return true;
  },

  compileMatcher: function() {
    if (this.shouldUseXPath())
      return this.compileXPathMatcher();

    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
    	      new Template(c[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        if (m = e.match(ps[i])) {
          this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
            new Template(x[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    if (this.xpath) return document._getElementsByXPath(this.xpath, root);
    return this.matcher(root);
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          // use the Selector.assertions methods unless the selector
          // is too complex.
          if (as[i]) {
            this.tokens.push([i, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            // reluctantly do a document-wide search
            // and look for a match in the array
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
      'checked':     "[@checked]",
      'disabled':    "[@disabled]",
      'enabled':     "[not(@disabled)]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i in p) {
            if (m = e.match(p[i])) {
              v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: {
    // combinators must be listed first
    // (and descendant needs to be last combinator)
    laterSibling: /^\s*~\s*/,
    child:        /^\s*>\s*/,
    adjacent:     /^\s*\+\s*/,
    descendant:   /^\s/,

    // selectors follow
    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
    id:           /^#([\w\-\*]+)(\b|$)/,
    className:    /^\.([\w\-\*]+)(\b|$)/,
    pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
    attrPresence: /^\[([\w]+)\]/,
    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
  },

  // for Selector.match and Element#match
  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

  handlers: {
    // UTILITY FUNCTIONS
    // joins two collections
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    // marks an array of nodes for counting
    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = undefined;
      return nodes;
    },

    // mark each child node with its position (for nth calls)
    // "ofType" flag indicates whether we're indexing for nth-of-type
    // rather than nth-child
    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },

    // filters out duplicates and extends all nodes
    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (!(n = nodes[i])._countedByPrototype) {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    // COMBINATOR FUNCTIONS
    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
	      if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    // TOKEN FUNCTIONS
    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          // fastlane for ordinary descendant combinators
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;
      if (!targetNode) return [];
      if (!nodes && root == document) return [targetNode];
      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    // handles the an+b logic
    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        // IE treats comments as element nodes
        if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled) results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv.startsWith(v); },
    '$=': function(nv, v) { return nv.endsWith(v); },
    '*=': function(nv, v) { return nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
  },

  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    // IE returns comment nodes on getElementsByTagName("*").
    // Filter them out.
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    },

    // IE improperly serializes _countedByPrototype in (inner|outer)HTML.
    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node.removeAttribute('_countedByPrototype');
      return nodes;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            // a key is already present; construct an array of values
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.Serializers[child.tagName.toLowerCase()])
          elements.push(Element.extend(child));
        return elements;
      }
    );
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/

Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !['button', 'reset', 'submit'].include(element.type)))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;
var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, index) {
    if (Object.isUndefined(index))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, value, single = !Object.isArray(index);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        value = this.optionValue(opt);
        if (single) {
          if (value == index) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = index.include(value);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    // extend element because hasAttribute may not be native
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) var Event = { };

Object.extend(Event, {
  KEY_BACKSPACE: 8,
  KEY_TAB:       9,
  KEY_RETURN:   13,
  KEY_ESC:      27,
  KEY_LEFT:     37,
  KEY_UP:       38,
  KEY_RIGHT:    39,
  KEY_DOWN:     40,
  KEY_DELETE:   46,
  KEY_HOME:     36,
  KEY_END:      35,
  KEY_PAGEUP:   33,
  KEY_PAGEDOWN: 34,
  KEY_INSERT:   45,

  cache: { },

  relatedTarget: function(event) {
    var element;
    switch(event.type) {
      case 'mouseover': element = event.fromElement; break;
      case 'mouseout':  element = event.toElement;   break;
      default: return null;
    }
    return Element.extend(element);
  }
});

Event.Methods = (function() {
  var isButton;

  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    isButton = function(event, code) {
      return event.button == buttonMap[code];
    };

  } else if (Prototype.Browser.WebKit) {
    isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };

  } else {
    isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  return {
    isLeftClick:   function(event) { return isButton(event, 0) },
    isMiddleClick: function(event) { return isButton(event, 1) },
    isRightClick:  function(event) { return isButton(event, 2) },

    element: function(event) {
      var node = Event.extend(event).target;
      return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
    },

    findElement: function(event, expression) {
      var element = Event.element(event);
      if (!expression) return element;
      var elements = [element].concat(element.ancestors());
      return Selector.findElement(elements, expression, 0);
    },

    pointer: function(event) {
      return {
        x: event.pageX || (event.clientX +
          (document.documentElement.scrollLeft || document.body.scrollLeft)),
        y: event.pageY || (event.clientY +
          (document.documentElement.scrollTop || document.body.scrollTop))
      };
    },

    pointerX: function(event) { return Event.pointer(event).x },
    pointerY: function(event) { return Event.pointer(event).y },

    stop: function(event) {
      Event.extend(event);
      event.preventDefault();
      event.stopPropagation();
      event.stopped = true;
    }
  };
})();

Event.extend = (function() {
  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return "[object Event]" }
    });

    return function(event) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);
      Object.extend(event, {
        target: event.srcElement,
        relatedTarget: Event.relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });
      return Object.extend(event, methods);
    };

  } else {
    Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
    Object.extend(Event.prototype, methods);
    return Prototype.K;
  }
})();

Object.extend(Event, (function() {
  var cache = Event.cache;

  function getEventID(element) {
    if (element._prototypeEventID) return element._prototypeEventID[0];
    arguments.callee.id = arguments.callee.id || 1;
    return element._prototypeEventID = [++arguments.callee.id];
  }

  function getDOMEventName(eventName) {
    if (eventName && eventName.include(':')) return "dataavailable";
    return eventName;
  }

  function getCacheForID(id) {
    return cache[id] = cache[id] || { };
  }

  function getWrappersForEventName(id, eventName) {
    var c = getCacheForID(id);
    return c[eventName] = c[eventName] || [];
  }

  function createWrapper(element, eventName, handler) {
    var id = getEventID(element);
    var c = getWrappersForEventName(id, eventName);
    if (c.pluck("handler").include(handler)) return false;

    var wrapper = function(event) {
      if (!Event || !Event.extend ||
        (event.eventName && event.eventName != eventName))
          return false;

      Event.extend(event);
      handler.call(element, event);
    };

    wrapper.handler = handler;
    c.push(wrapper);
    return wrapper;
  }

  function findWrapper(id, eventName, handler) {
    var c = getWrappersForEventName(id, eventName);
    return c.find(function(wrapper) { return wrapper.handler == handler });
  }

  function destroyWrapper(id, eventName, handler) {
    var c = getCacheForID(id);
    if (!c[eventName]) return false;
    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
  }

  function destroyCache() {
    for (var id in cache)
      for (var eventName in cache[id])
        cache[id][eventName] = null;
  }

  if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }

  return {
    observe: function(element, eventName, handler) {
      element = $(element);
      var name = getDOMEventName(eventName);

      var wrapper = createWrapper(element, eventName, handler);
      if (!wrapper) return element;

      if (element.addEventListener) {
        element.addEventListener(name, wrapper, false);
      } else {
        element.attachEvent("on" + name, wrapper);
      }

      return element;
    },

    stopObserving: function(element, eventName, handler) {
      element = $(element);
      var id = getEventID(element), name = getDOMEventName(eventName);

      if (!handler && eventName) {
        getWrappersForEventName(id, eventName).each(function(wrapper) {
          element.stopObserving(eventName, wrapper.handler);
        });
        return element;

      } else if (!eventName) {
        Object.keys(getCacheForID(id)).each(function(eventName) {
          element.stopObserving(eventName);
        });
        return element;
      }

      var wrapper = findWrapper(id, eventName, handler);
      if (!wrapper) return element;

      if (element.removeEventListener) {
        element.removeEventListener(name, wrapper, false);
      } else {
        element.detachEvent("on" + name, wrapper);
      }

      destroyWrapper(id, eventName, handler);

      return element;
    },

    fire: function(element, eventName, memo) {
      element = $(element);
      if (element == document && document.createEvent && !element.dispatchEvent)
        element = document.documentElement;

      var event;
      if (document.createEvent) {
        event = document.createEvent("HTMLEvents");
        event.initEvent("dataavailable", true, true);
      } else {
        event = document.createEventObject();
        event.eventType = "ondataavailable";
      }

      event.eventName = eventName;
      event.memo = memo || { };

      if (document.createEvent) {
        element.dispatchEvent(event);
      } else {
        element.fireEvent(event.eventType, event);
      }

      return Event.extend(event);
    }
  };
})());

Object.extend(Event, Event.Methods);

Element.addMethods({
  fire:          Event.fire,
  observe:       Event.observe,
  stopObserving: Event.stopObserving
});

Object.extend(document, {
  fire:          Element.Methods.fire.methodize(),
  observe:       Element.Methods.observe.methodize(),
  stopObserving: Element.Methods.stopObserving.methodize(),
  loaded:        false
});

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards and John Resig. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearInterval(timer);
    document.fire("dom:loaded");
    document.loaded = true;
  }

  if (document.addEventListener) {
    if (Prototype.Browser.WebKit) {
      timer = window.setInterval(function() {
        if (/loaded|complete/.test(document.readyState))
          fireContentLoadedEvent();
      }, 0);

      Event.observe(window, "load", fireContentLoadedEvent);

    } else {
      document.addEventListener("DOMContentLoaded",
        fireContentLoadedEvent, false);
    }

  } else {
    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
    $("__onDOMContentLoaded").onreadystatechange = function() {
      if (this.readyState == "complete") {
        this.onreadystatechange = null;
        fireContentLoadedEvent();
      }
    };
  }
})();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,

  // must be called before calling withinIncludingScrolloffset, every time the
  // page is scrolled
  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  // caches x/y coordinate pair to use with overlap
  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  // within must be called directly before
  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },

  // Deprecation layer -- use newer Element methods now (1.5.2).

  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

Element.addMethods();

// script.aculo.us builder.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Builder = {
  NODEMAP: {
    AREA: 'map',
    CAPTION: 'table',
    COL: 'table',
    COLGROUP: 'table',
    LEGEND: 'fieldset',
    OPTGROUP: 'select',
    OPTION: 'select',
    PARAM: 'object',
    TBODY: 'table',
    TD: 'table',
    TFOOT: 'table',
    TH: 'table',
    THEAD: 'table',
    TR: 'table'
  },
  // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
  //       due to a Firefox bug
  node: function(elementName) {
    elementName = elementName.toUpperCase();
    
    // try innerHTML approach
    var parentTag = this.NODEMAP[elementName] || 'div';
    var parentElement = document.createElement(parentTag);
    try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
      parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
    } catch(e) {}
    var element = parentElement.firstChild || null;
      
    // see if browser added wrapping tags
    if(element && (element.tagName.toUpperCase() != elementName))
      element = element.getElementsByTagName(elementName)[0];
    
    // fallback to createElement approach
    if(!element) element = document.createElement(elementName);
    
    // abort if nothing could be created
    if(!element) return;

    // attributes (or text)
    if(arguments[1])
      if(this._isStringOrNumber(arguments[1]) ||
        (arguments[1] instanceof Array) ||
        arguments[1].tagName) {
          this._children(element, arguments[1]);
        } else {
          var attrs = this._attributes(arguments[1]);
          if(attrs.length) {
            try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
              parentElement.innerHTML = "<" +elementName + " " +
                attrs + "></" + elementName + ">";
            } catch(e) {}
            element = parentElement.firstChild || null;
            // workaround firefox 1.0.X bug
            if(!element) {
              element = document.createElement(elementName);
              for(attr in arguments[1]) 
                element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
            }
            if(element.tagName.toUpperCase() != elementName)
              element = parentElement.getElementsByTagName(elementName)[0];
          }
        } 

    // text, or array of children
    if(arguments[2])
      this._children(element, arguments[2]);

     return element;
  },
  _text: function(text) {
     return document.createTextNode(text);
  },

  ATTR_MAP: {
    'className': 'class',
    'htmlFor': 'for'
  },

  _attributes: function(attributes) {
    var attrs = [];
    for(attribute in attributes)
      attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
          '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
    return attrs.join(" ");
  },
  _children: function(element, children) {
    if(children.tagName) {
      element.appendChild(children);
      return;
    }
    if(typeof children=='object') { // array can hold nodes and text
      children.flatten().each( function(e) {
        if(typeof e=='object')
          element.appendChild(e)
        else
          if(Builder._isStringOrNumber(e))
            element.appendChild(Builder._text(e));
      });
    } else
      if(Builder._isStringOrNumber(children))
        element.appendChild(Builder._text(children));
  },
  _isStringOrNumber: function(param) {
    return(typeof param=='string' || typeof param=='number');
  },
  build: function(html) {
    var element = this.node('div');
    $(element).update(html.strip());
    return element.down();
  },
  dump: function(scope) { 
    if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope 
  
    var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
      "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
      "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
      "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
      "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
      "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);
  
    tags.each( function(tag){ 
      scope[tag] = function() { 
        return Builder.node.apply(Builder, [tag].concat($A(arguments)));  
      } 
    });
  }
}

// script.aculo.us effects.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format,  
// returns self (or first argument) if not convertable  
String.prototype.parseColor = function() {  
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {  
    var cols = this.slice(4,this.length-1).split(',');  
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
  } else {  
    if (this.slice(0,1) == '#') {  
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
      if (this.length==7) color = this.toLowerCase();  
    }  
  }  
  return (color.length==7 ? color : (arguments[0] || this));  
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);  
  element.setStyle({fontSize: (percent/100) + 'em'});   
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + 0.5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
    },
    pulse: function(pos, pulses) { 
      pulses = pulses || 5; 
      return (
        ((pos % (1/pulses)) * pulses).round() == 0 ? 
              ((pos * pulses * 2) - (pos * pulses * 2).floor()) : 
          1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
        );
    },
    spring: function(pos) { 
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); 
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';
    
    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character), 
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') || 
        Object.isFunction(element)) && 
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;
      
    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || { });
    Effect[element.visible() ? 
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;    
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();
    
    var position = Object.isString(effect.options.queue) ? 
      effect.options.queue : effect.options.queue.position;
    
    switch(position) {
      case 'front':
        // move unstarted effects after this effect  
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }
    
    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);
    
    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++) 
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;
    
    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;
    
    eval('this.render = function(pos){ '+
      'if (this.state=="idle"){this.state="running";'+
      codeForEvent(this.options,'beforeSetup')+
      (this.setup ? 'this.setup();':'')+ 
      codeForEvent(this.options,'afterSetup')+
      '};if (this.state=="running"){'+
      'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
      'this.position=pos;'+
      codeForEvent(this.options,'beforeUpdate')+
      (this.update ? 'this.update(pos);':'')+
      codeForEvent(this.options,'afterUpdate')+
      '}}');
    
    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ? 
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish(); 
        this.event('afterFinish');
        return;  
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ? 
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(), 
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) : 
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element, 
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');
    
    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));
      
    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;
    
    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));
    
    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
    
    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
    scrollOffsets = document.viewport.getScrollOffsets(),
    elementOffsets = $(element).cumulativeOffset(),
    max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();  

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1] > max ? max : elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()) }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) { 
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity}); 
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show(); 
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = { 
    opacity: element.getInlineOpacity(), 
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200, 
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
     Object.extend({ duration: 1.0, 
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false, 
      scaleX: false, 
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      } 
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, { 
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) { 
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      })
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned(); 
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        } 
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}) }}) }}) }}) }}) }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false, 
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false, 
    scaleX: false, 
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },  
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, { 
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping(); 
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();    
  var initialMoveX, initialMoveY;
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0; 
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }
  
  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01, 
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show(); 
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
             }
           }, options)
      )
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':  
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }
  
  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({            
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping(); 
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { };
  var oldOpacity = element.getInlineOpacity();
  var transition = options.transition || Effect.Transitions.sinoidal;
  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
  reverser.bind(transition);
  return new Effect.Opacity(element, 
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({   
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, { 
      scaleContent: false, 
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });
    
    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        }
      }
    }
    this.start(options);
  },
  
  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return { 
        style: property.camelize(), 
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      )
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] = 
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) + 
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');
  
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }
  
  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]); 
  });
  
  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
};

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element)
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) { 
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    }
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each( 
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);

// script.aculo.us dragdrop.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(Object.isUndefined(Effect))
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || { });

    // cache containers
    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if(Object.isArray(containment)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }
    
    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },
  
  findDeepestChild: function(drops) {
    deepest = drops[0];
      
    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];
    
    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode; 
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },
  
  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect( 
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var drop, affected = [];
    
    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });
        
    if(affected.length>0)
      drop = Droppables.findDeepestChild(affected);

    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
    if (drop) {
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
      
      if (drop != this.last_active) Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) {
        this.last_active.onDrop(element, this.last_active.element, event); 
        return true; 
      }
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
}

var Draggables = {
  drags: [],
  observers: [],
  
  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);
      
      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },
  
  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },
  
  activate: function(draggable) {
    if(draggable.options.delay) { 
      this._timeout = setTimeout(function() { 
        Draggables._timeout = null; 
        window.focus(); 
        Draggables.activeDraggable = draggable; 
      }.bind(this), draggable.options.delay); 
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },
  
  deactivate: function() {
    this.activeDraggable = null;
  },
  
  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    // Mozilla-based browsers fire successive mousemove events with
    // the same coordinates, prevent needless redrawing (moz bug?)
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;
    
    this.activeDraggable.updateDrag(event, pointer);
  },
  
  endDrag: function(event) {
    if(this._timeout) { 
      clearTimeout(this._timeout); 
      this._timeout = null; 
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },
  
  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },
  
  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },
  
  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },
  
  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },
  
  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
}

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, 
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){ 
            Draggable._dragging[element] = false 
          }
        }); 
      },
      zindex: 1000,
      revert: false,
      quiet: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };
    
    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); 
        }
      });
    
    var options = Object.extend(defaults, arguments[1] || { });

    this.element = $(element);
    
    if(options.handle && Object.isString(options.handle))
      this.handle = this.element.down('.'+options.handle, 0);
    
    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;
    
    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE    

    this.options  = options;
    this.dragging = false;   

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);
    
    Draggables.register(this);
  },
  
  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },
  
  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },
  
  initDrag: function(event) {
    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {    
      // abort on form elements, fixes a Firefox issue
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;
        
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = Position.cumulativeOffset(this.element);
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
      
      Draggables.activate(this);
      Event.stop(event);
    }
  },
  
  startDrag: function(event) {
    this.dragging = true;
    if(!this.delta)
      this.delta = this.currentDelta();
    
    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }
    
    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this.element._originallyAbsolute)
        Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }
    
    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }
    
    Draggables.notify('onStart', this, event);
        
    if(this.options.starteffect) this.options.starteffect(this.element);
  },
  
  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);
    
    if(!this.options.quiet){
      Position.prepare();
      Droppables.show(pointer, this.element);
    }
    
    Draggables.notify('onDrag', this, event);
    
    this.draw(pointer);
    if(this.options.change) this.options.change(this);
    
    if(this.options.scroll) {
      this.stopScrolling();
      
      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }
    
    // fix AppleWebKit rendering
    if(Prototype.Browser.WebKit) window.scrollBy(0,0);
    
    Event.stop(event);
  },
  
  finishDrag: function(event, success) {
    this.dragging = false;
    
    if(this.options.quiet){
      Position.prepare();
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      Droppables.show(pointer, this.element);
    }

    if(this.options.ghosting) {
      if (!this.element._originallyAbsolute)
        Position.relativize(this.element);
      delete this.element._originallyAbsolute;
      Element.remove(this._clone);
      this._clone = null;
    }

    var dropped = false; 
    if(success) { 
      dropped = Droppables.fire(event, this.element); 
      if (!dropped) dropped = false; 
    }
    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && Object.isFunction(revert)) revert = revert(this.element);
    
    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      if (dropped == 0 || revert != 'failure')
        this.options.reverteffect(this.element,
          d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect) 
      this.options.endeffect(this.element);
      
    Draggables.deactivate(this);
    Droppables.reset();
  },
  
  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },
  
  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },
  
  draw: function(point) {
    var pos = Position.cumulativeOffset(this.element);
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }
    
    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];
    
    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }
    
    var p = [0,1].map(function(i){ 
      return (point[i]-pos[i]-this.offset[i]) 
    }.bind(this));
    
    if(this.options.snap) {
      if(Object.isFunction(this.options.snap)) {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(Object.isArray(this.options.snap)) {
        p = p.map( function(v, i) {
          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this))
      } else {
        p = p.map( function(v) {
          return (v/this.options.snap).round()*this.options.snap }.bind(this))
      }
    }}
    
    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";
    
    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },
  
  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },
  
  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },
  
  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }
    
    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }
    
    if(this.options.change) this.options.change(this);
  },
  
  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },
  
  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },
  
  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
});

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
  
  sortables: { },
  
  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {  
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },
  
  destroy: function(element){
    var s = Sortable.options(element);
    
    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');
      
      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({ 
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      quiet:       false, 
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,
      
      // these take arrays of elements or ids and can be 
      // used for better initialization performance
      elements:    false,
      handles:     false,
      
      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    // clear any old sortable with same element
    this.destroy(element);

    // build options for the draggables
    var options_for_draggable = {
      revert:      true,
      quiet:       options.quiet,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    // build options for the droppables  
    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    }
    
    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    }

    // fix for gecko engine
    Element.cleanWhitespace(element); 

    options.draggables = [];
    options.droppables = [];

    // drop on empty handling
    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
      var handle = options.handles ? $(options.handles[i]) :
        (options.handle ? $(e).select('.' + options.handle)[0] : e); 
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);      
    });
    
    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    // keep reference
    this.sortables[element.id] = options;

    // for onupdate
    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  // return all suitable-for-sortable elements in a guaranteed order
  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },
  
  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode) 
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode) 
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },
  
  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);
        
    if(!Element.isParent(dropon, element)) {
      var index;
      
      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;
            
      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
        
        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }
      
      dropon.insertBefore(element, child);
      
      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    // mark on ghosting only
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return; 

    if(!Sortable._marker) {
      Sortable._marker = 
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }    
    var offsets = Position.cumulativeOffset(dropon);
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
    
    if(position=='after')
      if(sortable.overlap == 'horizontal') 
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
    
    Sortable._marker.show();
  },
  
  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];
  
    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;
      
      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      }
      
      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child)
      
      parent.children.push (child);
    }

    return parent; 
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || { });
    
    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    }
    
    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || { });
    
    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || { });
    
    var nodeMap = { };
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });
   
    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },
  
  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || { });
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
    
    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" + 
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
}

// Returns true if child is contained within element
Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName) {   
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
}
    
// script.aculo.us controls.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
// Contributors:
//  Richard Livsey
//  Rahul Bhargava
//  Rob Wills
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality 
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least, 
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method 
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most 
// useful when one of the tokens is \n (a newline), as it 
// allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
  throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { }
Autocompleter.Base = Class.create({
  baseInitialize: function(element, update, options) {
    element          = $(element)
    this.element     = element; 
    this.update      = $(update);  
    this.hasFocus    = false; 
    this.changed     = false; 
    this.active      = false; 
    this.index       = 0;     
    this.entryCount  = 0;
    this.oldElementValue = this.element.value;

    if(this.setOptions)
      this.setOptions(options);
    else
      this.options = options || { };

    this.options.paramName    = this.options.paramName || this.element.name;
    this.options.tokens       = this.options.tokens || [];
    this.options.frequency    = this.options.frequency || 0.4;
    this.options.minChars     = this.options.minChars || 1;
    this.options.onShow       = this.options.onShow || 
      function(element, update){ 
        if(!update.style.position || update.style.position=='absolute') {
          update.style.position = 'absolute';
          Position.clone(element, update, {
            setHeight: false, 
            offsetTop: element.offsetHeight
          });
        }
        Effect.Appear(update,{duration:0.15});
      };
    this.options.onHide = this.options.onHide || 
      function(element, update){ new Effect.Fade(update,{duration:0.15}) };

    if(typeof(this.options.tokens) == 'string') 
      this.options.tokens = new Array(this.options.tokens);
    // Force carriage returns as token delimiters anyway
    if (!this.options.tokens.include('\n'))
      this.options.tokens.push('\n');

    this.observer = null;
    
    this.element.setAttribute('autocomplete','off');

    Element.hide(this.update);

    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
  },

  show: function() {
    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
    if(!this.iefix && 
      (Prototype.Browser.IE) &&
      (Element.getStyle(this.update, 'position')=='absolute')) {
      new Insertion.After(this.update, 
       '<iframe id="' + this.update.id + '_iefix" '+
       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
      this.iefix = $(this.update.id+'_iefix');
    }
    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
  },
  
  fixIEOverlapping: function() {
    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
    this.iefix.style.zIndex = 1;
    this.update.style.zIndex = 2;
    Element.show(this.iefix);
  },

  hide: function() {
    this.stopIndicator();
    if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
    if(this.iefix) Element.hide(this.iefix);
  },

  startIndicator: function() {
    if(this.options.indicator) Element.show(this.options.indicator);
  },

  stopIndicator: function() {
    if(this.options.indicator) Element.hide(this.options.indicator);
  },

  onKeyPress: function(event) {
    if(this.active)
      switch(event.keyCode) {
       case Event.KEY_TAB:
       case Event.KEY_RETURN:
         this.selectEntry();
         Event.stop(event);
       case Event.KEY_ESC:
         this.hide();
         this.active = false;
         Event.stop(event);
         return;
       case Event.KEY_LEFT:
       case Event.KEY_RIGHT:
         return;
       case Event.KEY_UP:
         this.markPrevious();
         this.render();
         Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         Event.stop(event);
         return;
      }
     else 
       if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN || 
         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

    this.changed = true;
    this.hasFocus = true;

    if(this.observer) clearTimeout(this.observer);
      this.observer = 
        setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
  },

  activate: function() {
    this.changed = false;
    this.hasFocus = true;
    this.getUpdatedChoices();
  },

  onHover: function(event) {
    var element = Event.findElement(event, 'LI');
    if(this.index != element.autocompleteIndex) 
    {
        this.index = element.autocompleteIndex;
        this.render();
    }
    Event.stop(event);
  },
  
  onClick: function(event) {
    var element = Event.findElement(event, 'LI');
    this.index = element.autocompleteIndex;
    this.selectEntry();
    this.hide();
  },
  
  onBlur: function(event) {
    // needed to make click events working
    setTimeout(this.hide.bind(this), 250);
    this.hasFocus = false;
    this.active = false;     
  }, 
  
  render: function() {
    if(this.entryCount > 0) {
      for (var i = 0; i < this.entryCount; i++)
        this.index==i ? 
          Element.addClassName(this.getEntry(i),"selected") : 
          Element.removeClassName(this.getEntry(i),"selected");
      if(this.hasFocus) { 
        this.show();
        this.active = true;
      }
    } else {
      this.active = false;
      this.hide();
    }
  },
  
  markPrevious: function() {
    if(this.index > 0) this.index--
      else this.index = this.entryCount-1;
    this.getEntry(this.index).scrollIntoView(true);
  },
  
  markNext: function() {
    if(this.index < this.entryCount-1) this.index++
      else this.index = 0;
    this.getEntry(this.index).scrollIntoView(false);
  },
  
  getEntry: function(index) {
    return this.update.firstChild.childNodes[index];
  },
  
  getCurrentEntry: function() {
    return this.getEntry(this.index);
  },
  
  selectEntry: function() {
    this.active = false;
    this.updateElement(this.getCurrentEntry());
  },

  updateElement: function(selectedElement) {
    if (this.options.updateElement) {
      this.options.updateElement(selectedElement);
      return;
    }
    var value = '';
    if (this.options.select) {
      var nodes = $(selectedElement).select('.' + this.options.select) || [];
      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
    } else
      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
    
    var bounds = this.getTokenBounds();
    if (bounds[0] != -1) {
      var newValue = this.element.value.substr(0, bounds[0]);
      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
      if (whitespace)
        newValue += whitespace[0];
      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
    } else {
      this.element.value = value;
    }
    this.oldElementValue = this.element.value;
    this.element.focus();
    
    if (this.options.afterUpdateElement)
      this.options.afterUpdateElement(this.element, selectedElement);
  },

  updateChoices: function(choices) {
    if(!this.changed && this.hasFocus) {
      this.update.innerHTML = choices;
      Element.cleanWhitespace(this.update);
      Element.cleanWhitespace(this.update.down());

      if(this.update.firstChild && this.update.down().childNodes) {
        this.entryCount = 
          this.update.down().childNodes.length;
        for (var i = 0; i < this.entryCount; i++) {
          var entry = this.getEntry(i);
          entry.autocompleteIndex = i;
          this.addObservers(entry);
        }
      } else { 
        this.entryCount = 0;
      }

      this.stopIndicator();
      this.index = 0;
      
      if(this.entryCount==1 && this.options.autoSelect) {
        this.selectEntry();
        this.hide();
      } else {
        this.render();
      }
    }
  },

  addObservers: function(element) {
    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
  },

  onObserverEvent: function() {
    this.changed = false;   
    this.tokenBounds = null;
    if(this.getToken().length>=this.options.minChars) {
      this.getUpdatedChoices();
    } else {
      this.active = false;
      this.hide();
    }
    this.oldElementValue = this.element.value;
  },

  getToken: function() {
    var bounds = this.getTokenBounds();
    return this.element.value.substring(bounds[0], bounds[1]).strip();
  },

  getTokenBounds: function() {
    if (null != this.tokenBounds) return this.tokenBounds;
    var value = this.element.value;
    if (value.strip().empty()) return [-1, 0];
    var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
    var offset = (diff == this.oldElementValue.length ? 1 : 0);
    var prevTokenPos = -1, nextTokenPos = value.length;
    var tp;
    for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
      tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
      if (tp > prevTokenPos) prevTokenPos = tp;
      tp = value.indexOf(this.options.tokens[index], diff + offset);
      if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
    }
    return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
  }
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
  var boundary = Math.min(newS.length, oldS.length);
  for (var index = 0; index < boundary; ++index)
    if (newS[index] != oldS[index])
      return index;
  return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
  initialize: function(element, update, url, options) {
    this.baseInitialize(element, update, options);
    this.options.asynchronous  = true;
    this.options.onComplete    = this.onComplete.bind(this);
    this.options.defaultParams = this.options.parameters || null;
    this.url                   = url;
  },

  getUpdatedChoices: function() {
    this.startIndicator();
    
    var entry = encodeURIComponent(this.options.paramName) + '=' + 
      encodeURIComponent(this.getToken());

    this.options.parameters = this.options.callback ?
      this.options.callback(this.element, entry) : entry;

    if(this.options.defaultParams) 
      this.options.parameters += '&' + this.options.defaultParams;
    
    new Ajax.Request(this.url, this.options);
  },

  onComplete: function(request) {
    this.updateChoices(request.responseText);
  }
});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
//                    text only at the beginning of strings in the 
//                    autocomplete array. Defaults to true, which will
//                    match text at the beginning of any *word* in the
//                    strings in the autocomplete array. If you want to
//                    search anywhere in the string, additionally set
//                    the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
//                   a partial match (unlike minChars, which defines
//                   how many characters are required to do any match
//                   at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
//                 Defaults to true.
//
// It's possible to pass in a custom function as the 'selector' 
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
  initialize: function(element, update, array, options) {
    this.baseInitialize(element, update, options);
    this.options.array = array;
  },

  getUpdatedChoices: function() {
    this.updateChoices(this.options.selector(this));
  },

  setOptions: function(options) {
    this.options = Object.extend({
      choices: 10,
      partialSearch: true,
      partialChars: 2,
      ignoreCase: true,
      fullSearch: false,
      selector: function(instance) {
        var ret       = []; // Beginning matches
        var partial   = []; // Inside matches
        var entry     = instance.getToken();
        var count     = 0;

        for (var i = 0; i < instance.options.array.length &&  
          ret.length < instance.options.choices ; i++) { 

          var elem = instance.options.array[i];
          var foundPos = instance.options.ignoreCase ? 
            elem.toLowerCase().indexOf(entry.toLowerCase()) : 
            elem.indexOf(entry);

          while (foundPos != -1) {
            if (foundPos == 0 && elem.length != entry.length) { 
              ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" + 
                elem.substr(entry.length) + "</li>");
              break;
            } else if (entry.length >= instance.options.partialChars && 
              instance.options.partialSearch && foundPos != -1) {
              if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
                  foundPos + entry.length) + "</li>");
                break;
              }
            }

            foundPos = instance.options.ignoreCase ? 
              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : 
              elem.indexOf(entry, foundPos + 1);

          }
        }
        if (partial.length)
          ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
        return "<ul>" + ret.join('') + "</ul>";
      }
    }, options || { });
  }
});

// AJAX in-place editor and collection editor
// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
  setTimeout(function() {
    Field.activate(field);
  }, 1);
}

Ajax.InPlaceEditor = Class.create({
  initialize: function(element, url, options) {
    this.url = url;
    this.element = element = $(element);
    this.prepareOptions();
    this._controls = { };
    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
    Object.extend(this.options, options || { });
    if (!this.options.formId && this.element.id) {
      this.options.formId = this.element.id + '-inplaceeditor';
      if ($(this.options.formId))
        this.options.formId = '';
    }
    if (this.options.externalControl)
      this.options.externalControl = $(this.options.externalControl);
    if (!this.options.externalControl)
      this.options.externalControlOnly = false;
    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
    this.element.title = this.options.clickToEditText;
    this._boundCancelHandler = this.handleFormCancellation.bind(this);
    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
    this._boundWrapperHandler = this.wrapUp.bind(this);
    this.registerListeners();
  },
  checkForEscapeOrReturn: function(e) {
    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
    if (Event.KEY_ESC == e.keyCode)
      this.handleFormCancellation(e);
    else if (Event.KEY_RETURN == e.keyCode)
      this.handleFormSubmission(e);
  },
  createControl: function(mode, handler, extraClasses) {
    var control = this.options[mode + 'Control'];
    var text = this.options[mode + 'Text'];
    if ('button' == control) {
      var btn = document.createElement('input');
      btn.type = 'submit';
      btn.value = text;
      btn.className = 'editor_' + mode + '_button';
      if ('cancel' == mode)
        btn.onclick = this._boundCancelHandler;
      this._form.appendChild(btn);
      this._controls[mode] = btn;
    } else if ('link' == control) {
      var link = document.createElement('a');
      link.href = '#';
      link.appendChild(document.createTextNode(text));
      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
      link.className = 'editor_' + mode + '_link';
      if (extraClasses)
        link.className += ' ' + extraClasses;
      this._form.appendChild(link);
      this._controls[mode] = link;
    }
  },
  createEditField: function() {
    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
    var fld;
    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
      fld = document.createElement('input');
      fld.type = 'text';
      var size = this.options.size || this.options.cols || 0;
      if (0 < size) fld.size = size;
    } else {
      fld = document.createElement('textarea');
      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
      fld.cols = this.options.cols || 40;
    }
    fld.name = this.options.paramName;
    fld.value = text; // No HTML breaks conversion anymore
    fld.className = 'editor_field';
    if (this.options.submitOnBlur)
      fld.onblur = this._boundSubmitHandler;
    this._controls.editor = fld;
    if (this.options.loadTextURL)
      this.loadExternalText();
    this._form.appendChild(this._controls.editor);
  },
  createForm: function() {
    var ipe = this;
    function addText(mode, condition) {
      var text = ipe.options['text' + mode + 'Controls'];
      if (!text || condition === false) return;
      ipe._form.appendChild(document.createTextNode(text));
    };
    this._form = $(document.createElement('form'));
    this._form.id = this.options.formId;
    this._form.addClassName(this.options.formClassName);
    this._form.onsubmit = this._boundSubmitHandler;
    this.createEditField();
    if ('textarea' == this._controls.editor.tagName.toLowerCase())
      this._form.appendChild(document.createElement('br'));
    if (this.options.onFormCustomization)
      this.options.onFormCustomization(this, this._form);
    addText('Before', this.options.okControl || this.options.cancelControl);
    this.createControl('ok', this._boundSubmitHandler);
    addText('Between', this.options.okControl && this.options.cancelControl);
    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
    addText('After', this.options.okControl || this.options.cancelControl);
  },
  destroy: function() {
    if (this._oldInnerHTML)
      this.element.innerHTML = this._oldInnerHTML;
    this.leaveEditMode();
    this.unregisterListeners();
  },
  enterEditMode: function(e) {
    if (this._saving || this._editing) return;
    this._editing = true;
    this.triggerCallback('onEnterEditMode');
    if (this.options.externalControl)
      this.options.externalControl.hide();
    this.element.hide();
    this.createForm();
    this.element.parentNode.insertBefore(this._form, this.element);
    if (!this.options.loadTextURL)
      this.postProcessEditField();
    if (e) Event.stop(e);
  },
  enterHover: function(e) {
    if (this.options.hoverClassName)
      this.element.addClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onEnterHover');
  },
  getText: function() {
    return this.element.innerHTML;
  },
  handleAJAXFailure: function(transport) {
    this.triggerCallback('onFailure', transport);
    if (this._oldInnerHTML) {
      this.element.innerHTML = this._oldInnerHTML;
      this._oldInnerHTML = null;
    }
  },
  handleFormCancellation: function(e) {
    this.wrapUp();
    if (e) Event.stop(e);
  },
  handleFormSubmission: function(e) {
    var form = this._form;
    var value = $F(this._controls.editor);
    this.prepareSubmission();
    var params = this.options.callback(form, value) || '';
    if (Object.isString(params))
      params = params.toQueryParams();
    params.editorId = this.element.id;
    if (this.options.htmlResponse) {
      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Updater({ success: this.element }, this.url, options);
    } else {
      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Request(this.url, options);
    }
    if (e) Event.stop(e);
  },
  leaveEditMode: function() {
    this.element.removeClassName(this.options.savingClassName);
    this.removeForm();
    this.leaveHover();
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
    if (this.options.externalControl)
      this.options.externalControl.show();
    this._saving = false;
    this._editing = false;
    this._oldInnerHTML = null;
    this.triggerCallback('onLeaveEditMode');
  },
  leaveHover: function(e) {
    if (this.options.hoverClassName)
      this.element.removeClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onLeaveHover');
  },
  loadExternalText: function() {
    this._form.addClassName(this.options.loadingClassName);
    this._controls.editor.disabled = true;
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._form.removeClassName(this.options.loadingClassName);
        var text = transport.responseText;
        if (this.options.stripLoadedTextTags)
          text = text.stripTags();
        this._controls.editor.value = text;
        this._controls.editor.disabled = false;
        this.postProcessEditField();
      }.bind(this),
      onFailure: this._boundFailureHandler
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },
  postProcessEditField: function() {
    var fpc = this.options.fieldPostCreation;
    if (fpc)
      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
  },
  prepareOptions: function() {
    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
      Object.extend(this.options, defs);
    }.bind(this));
  },
  prepareSubmission: function() {
    this._saving = true;
    this.removeForm();
    this.leaveHover();
    this.showSaving();
  },
  registerListeners: function() {
    this._listeners = { };
    var listener;
    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
      listener = this[pair.value].bind(this);
      this._listeners[pair.key] = listener;
      if (!this.options.externalControlOnly)
        this.element.observe(pair.key, listener);
      if (this.options.externalControl)
        this.options.externalControl.observe(pair.key, listener);
    }.bind(this));
  },
  removeForm: function() {
    if (!this._form) return;
    this._form.remove();
    this._form = null;
    this._controls = { };
  },
  showSaving: function() {
    this._oldInnerHTML = this.element.innerHTML;
    this.element.innerHTML = this.options.savingText;
    this.element.addClassName(this.options.savingClassName);
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
  },
  triggerCallback: function(cbName, arg) {
    if ('function' == typeof this.options[cbName]) {
      this.options[cbName](this, arg);
    }
  },
  unregisterListeners: function() {
    $H(this._listeners).each(function(pair) {
      if (!this.options.externalControlOnly)
        this.element.stopObserving(pair.key, pair.value);
      if (this.options.externalControl)
        this.options.externalControl.stopObserving(pair.key, pair.value);
    }.bind(this));
  },
  wrapUp: function(transport) {
    this.leaveEditMode();
    // Can't use triggerCallback due to backward compatibility: requires
    // binding + direct element
    this._boundComplete(transport, this.element);
  }
});

Object.extend(Ajax.InPlaceEditor.prototype, {
  dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
  initialize: function($super, element, url, options) {
    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
    $super(element, url, options);
  },

  createEditField: function() {
    var list = document.createElement('select');
    list.name = this.options.paramName;
    list.size = 1;
    this._controls.editor = list;
    this._collection = this.options.collection || [];
    if (this.options.loadCollectionURL)
      this.loadCollection();
    else
      this.checkForExternalText();
    this._form.appendChild(this._controls.editor);
  },

  loadCollection: function() {
    this._form.addClassName(this.options.loadingClassName);
    this.showLoadingText(this.options.loadingCollectionText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        var js = transport.responseText.strip();
        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
          throw 'Server returned an invalid collection representation.';
        this._collection = eval(js);
        this.checkForExternalText();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadCollectionURL, options);
  },

  showLoadingText: function(text) {
    this._controls.editor.disabled = true;
    var tempOption = this._controls.editor.firstChild;
    if (!tempOption) {
      tempOption = document.createElement('option');
      tempOption.value = '';
      this._controls.editor.appendChild(tempOption);
      tempOption.selected = true;
    }
    tempOption.update((text || '').stripScripts().stripTags());
  },

  checkForExternalText: function() {
    this._text = this.getText();
    if (this.options.loadTextURL)
      this.loadExternalText();
    else
      this.buildOptionList();
  },

  loadExternalText: function() {
    this.showLoadingText(this.options.loadingText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._text = transport.responseText.strip();
        this.buildOptionList();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },

  buildOptionList: function() {
    this._form.removeClassName(this.options.loadingClassName);
    this._collection = this._collection.map(function(entry) {
      return 2 === entry.length ? entry : [entry, entry].flatten();
    });
    var marker = ('value' in this.options) ? this.options.value : this._text;
    var textFound = this._collection.any(function(entry) {
      return entry[0] == marker;
    }.bind(this));
    this._controls.editor.update('');
    var option;
    this._collection.each(function(entry, index) {
      option = document.createElement('option');
      option.value = entry[0];
      option.selected = textFound ? entry[0] == marker : 0 == index;
      option.appendChild(document.createTextNode(entry[1]));
      this._controls.editor.appendChild(option);
    }.bind(this));
    this._controls.editor.disabled = false;
    Field.scrollFreeActivate(this._controls.editor);
  }
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
  if (!options) return;
  function fallback(name, expr) {
    if (name in options || expr === undefined) return;
    options[name] = expr;
  };
  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
    options.cancelLink == options.cancelButton == false ? false : undefined)));
  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
    options.okLink == options.okButton == false ? false : undefined)));
  fallback('highlightColor', options.highlightcolor);
  fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
  DefaultOptions: {
    ajaxOptions: { },
    autoRows: 3,                                // Use when multi-line w/ rows == 1
    cancelControl: 'link',                      // 'link'|'button'|false
    cancelText: 'cancel',
    clickToEditText: 'Click to edit',
    externalControl: null,                      // id|elt
    externalControlOnly: false,
    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
    formClassName: 'inplaceeditor-form',
    formId: null,                               // id|elt
    highlightColor: '#ffff99',
    highlightEndColor: '#ffffff',
    hoverClassName: '',
    htmlResponse: true,
    loadingClassName: 'inplaceeditor-loading',
    loadingText: 'Loading...',
    okControl: 'button',                        // 'link'|'button'|false
    okText: 'ok',
    paramName: 'value',
    rows: 1,                                    // If 1 and multi-line, uses autoRows
    savingClassName: 'inplaceeditor-saving',
    savingText: 'Saving...',
    size: 0,
    stripLoadedTextTags: false,
    submitOnBlur: false,
    textAfterControls: '',
    textBeforeControls: '',
    textBetweenControls: ''
  },
  DefaultCallbacks: {
    callback: function(form) {
      return Form.serialize(form);
    },
    onComplete: function(transport, element) {
      // For backward compatibility, this one is bound to the IPE, and passes
      // the element directly.  It was too often customized, so we don't break it.
      new Effect.Highlight(element, {
        startcolor: this.options.highlightColor, keepBackgroundImage: true });
    },
    onEnterEditMode: null,
    onEnterHover: function(ipe) {
      ipe.element.style.backgroundColor = ipe.options.highlightColor;
      if (ipe._effect)
        ipe._effect.cancel();
    },
    onFailure: function(transport, ipe) {
      alert('Error communication with the server: ' + transport.responseText.stripTags());
    },
    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
    onLeaveEditMode: null,
    onLeaveHover: function(ipe) {
      ipe._effect = new Effect.Highlight(ipe.element, {
        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
        restorecolor: ipe._originalBackground, keepBackgroundImage: true
      });
    }
  },
  Listeners: {
    click: 'enterEditMode',
    keydown: 'checkForEscapeOrReturn',
    mouseover: 'enterHover',
    mouseout: 'leaveHover'
  }
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
  loadingCollectionText: 'Loading options...'
};

// Delayed observer, like Form.Element.Observer, 
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
  initialize: function(element, delay, callback) {
    this.delay     = delay || 0.5;
    this.element   = $(element);
    this.callback  = callback;
    this.timer     = null;
    this.lastValue = $F(this.element); 
    Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
  },
  delayedListener: function(event) {
    if(this.lastValue == $F(this.element)) return;
    if(this.timer) clearTimeout(this.timer);
    this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
    this.lastValue = $F(this.element);
  },
  onTimerEvent: function() {
    this.timer = null;
    this.callback(this.element, $F(this.element));
  }
});

// script.aculo.us slider.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Marty Haught, Thomas Fuchs 
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if (!Control) var Control = { };

// options:
//  axis: 'vertical', or 'horizontal' (default)
//
// callbacks:
//  onChange(value)
//  onSlide(value)
Control.Slider = Class.create({
  initialize: function(handle, track, options) {
    var slider = this;
    
    if (Object.isArray(handle)) {
      this.handles = handle.collect( function(e) { return $(e) });
    } else {
      this.handles = [$(handle)];
    }
    
    this.track   = $(track);
    this.options = options || { };

    this.axis      = this.options.axis || 'horizontal';
    this.increment = this.options.increment || 1;
    this.step      = parseInt(this.options.step || '1');
    this.range     = this.options.range || $R(0,1);
    
    this.value     = 0; // assure backwards compat
    this.values    = this.handles.map( function() { return 0 });
    this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
    this.options.startSpan = $(this.options.startSpan || null);
    this.options.endSpan   = $(this.options.endSpan || null);

    this.restricted = this.options.restricted || false;

    this.maximum   = this.options.maximum || this.range.end;
    this.minimum   = this.options.minimum || this.range.start;

    // Will be used to align the handle onto the track, if necessary
    this.alignX = parseInt(this.options.alignX || '0');
    this.alignY = parseInt(this.options.alignY || '0');
    
    this.trackLength = this.maximumOffset() - this.minimumOffset();

    this.handleLength = this.isVertical() ? 
      (this.handles[0].offsetHeight != 0 ? 
        this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) : 
      (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth : 
        this.handles[0].style.width.replace(/px$/,""));

    this.active   = false;
    this.dragging = false;
    this.disabled = false;

    if (this.options.disabled) this.setDisabled();

    // Allowed values array
    this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
    if (this.allowedValues) {
      this.minimum = this.allowedValues.min();
      this.maximum = this.allowedValues.max();
    }

    this.eventMouseDown = this.startDrag.bindAsEventListener(this);
    this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
    this.eventMouseMove = this.update.bindAsEventListener(this);

    // Initialize handles in reverse (make sure first handle is active)
    this.handles.each( function(h,i) {
      i = slider.handles.length-1-i;
      slider.setValue(parseFloat(
        (Object.isArray(slider.options.sliderValue) ? 
          slider.options.sliderValue[i] : slider.options.sliderValue) || 
         slider.range.start), i);
      h.makePositioned().observe("mousedown", slider.eventMouseDown);
    });
    
    this.track.observe("mousedown", this.eventMouseDown);
    document.observe("mouseup", this.eventMouseUp);
    document.observe("mousemove", this.eventMouseMove);
    
    this.initialized = true;
  },
  dispose: function() {
    var slider = this;    
    Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
    Event.stopObserving(document, "mouseup", this.eventMouseUp);
    Event.stopObserving(document, "mousemove", this.eventMouseMove);
    this.handles.each( function(h) {
      Event.stopObserving(h, "mousedown", slider.eventMouseDown);
    });
  },
  setDisabled: function(){
    this.disabled = true;
  },
  setEnabled: function(){
    this.disabled = false;
  },  
  getNearestValue: function(value){
    if (this.allowedValues){
      if (value >= this.allowedValues.max()) return(this.allowedValues.max());
      if (value <= this.allowedValues.min()) return(this.allowedValues.min());
      
      var offset = Math.abs(this.allowedValues[0] - value);
      var newValue = this.allowedValues[0];
      this.allowedValues.each( function(v) {
        var currentOffset = Math.abs(v - value);
        if (currentOffset <= offset){
          newValue = v;
          offset = currentOffset;
        } 
      });
      return newValue;
    }
    if (value > this.range.end) return this.range.end;
    if (value < this.range.start) return this.range.start;
    return value;
  },
  setValue: function(sliderValue, handleIdx){
    if (!this.active) {
      this.activeHandleIdx = handleIdx || 0;
      this.activeHandle    = this.handles[this.activeHandleIdx];
      this.updateStyles();
    }
    handleIdx = handleIdx || this.activeHandleIdx || 0;
    if (this.initialized && this.restricted) {
      if ((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
        sliderValue = this.values[handleIdx-1];
      if ((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
        sliderValue = this.values[handleIdx+1];
    }
    sliderValue = this.getNearestValue(sliderValue);
    this.values[handleIdx] = sliderValue;
    this.value = this.values[0]; // assure backwards compat
    
    this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] = 
      this.translateToPx(sliderValue);
    
    this.drawSpans();
    if (!this.dragging || !this.event) this.updateFinished();
  },
  setValueBy: function(delta, handleIdx) {
    this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta, 
      handleIdx || this.activeHandleIdx || 0);
  },
  translateToPx: function(value) {
    return Math.round(
      ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) * 
      (value - this.range.start)) + "px";
  },
  translateToValue: function(offset) {
    return ((offset/(this.trackLength-this.handleLength) * 
      (this.range.end-this.range.start)) + this.range.start);
  },
  getRange: function(range) {
    var v = this.values.sortBy(Prototype.K); 
    range = range || 0;
    return $R(v[range],v[range+1]);
  },
  minimumOffset: function(){
    return(this.isVertical() ? this.alignY : this.alignX);
  },
  maximumOffset: function(){
    return(this.isVertical() ? 
      (this.track.offsetHeight != 0 ? this.track.offsetHeight :
        this.track.style.height.replace(/px$/,"")) - this.alignY : 
      (this.track.offsetWidth != 0 ? this.track.offsetWidth : 
        this.track.style.width.replace(/px$/,"")) - this.alignX);
  },  
  isVertical:  function(){
    return (this.axis == 'vertical');
  },
  drawSpans: function() {
    var slider = this;
    if (this.spans)
      $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
    if (this.options.startSpan)
      this.setSpan(this.options.startSpan,
        $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
    if (this.options.endSpan)
      this.setSpan(this.options.endSpan, 
        $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
  },
  setSpan: function(span, range) {
    if (this.isVertical()) {
      span.style.top = this.translateToPx(range.start);
      span.style.height = this.translateToPx(range.end - range.start + this.range.start);
    } else {
      span.style.left = this.translateToPx(range.start);
      span.style.width = this.translateToPx(range.end - range.start + this.range.start);
    }
  },
  updateStyles: function() {
    this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
    Element.addClassName(this.activeHandle, 'selected');
  },
  startDrag: function(event) {
    if (Event.isLeftClick(event)) {
      if (!this.disabled){
        this.active = true;
        
        var handle = Event.element(event);
        var pointer  = [Event.pointerX(event), Event.pointerY(event)];
        var track = handle;
        if (track==this.track) {
          var offsets  = Position.cumulativeOffset(this.track); 
          this.event = event;
          this.setValue(this.translateToValue( 
           (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
          ));
          var offsets  = Position.cumulativeOffset(this.activeHandle);
          this.offsetX = (pointer[0] - offsets[0]);
          this.offsetY = (pointer[1] - offsets[1]);
        } else {
          // find the handle (prevents issues with Safari)
          while((this.handles.indexOf(handle) == -1) && handle.parentNode) 
            handle = handle.parentNode;
            
          if (this.handles.indexOf(handle)!=-1) {
            this.activeHandle    = handle;
            this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
            this.updateStyles();
            
            var offsets  = Position.cumulativeOffset(this.activeHandle);
            this.offsetX = (pointer[0] - offsets[0]);
            this.offsetY = (pointer[1] - offsets[1]);
          }
        }
      }
      Event.stop(event);
    }
  },
  update: function(event) {
   if (this.active) {
      if (!this.dragging) this.dragging = true;
      this.draw(event);
      if (Prototype.Browser.WebKit) window.scrollBy(0,0);
      Event.stop(event);
   }
  },
  draw: function(event) {
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    var offsets = Position.cumulativeOffset(this.track);
    pointer[0] -= this.offsetX + offsets[0];
    pointer[1] -= this.offsetY + offsets[1];
    this.event = event;
    this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
    if (this.initialized && this.options.onSlide)
      this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
  },
  endDrag: function(event) {
    if (this.active && this.dragging) {
      this.finishDrag(event, true);
      Event.stop(event);
    }
    this.active = false;
    this.dragging = false;
  },  
  finishDrag: function(event, success) {
    this.active = false;
    this.dragging = false;
    this.updateFinished();
  },
  updateFinished: function() {
    if (this.initialized && this.options.onChange) 
      this.options.onChange(this.values.length>1 ? this.values : this.value, this);
    this.event = null;
  }
});
/* SWFObject v2.1 <http://code.google.com/p/swfobject/>
	Copyright (c) 2007-2008 Geoff Stearns, Michael Williams, and Bobby van der Sluis
	This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/
var swfobject=function(){var b="undefined",Q="object",n="Shockwave Flash",p="ShockwaveFlash.ShockwaveFlash",P="application/x-shockwave-flash",m="SWFObjectExprInst",j=window,K=document,T=navigator,o=[],N=[],i=[],d=[],J,Z=null,M=null,l=null,e=false,A=false;var h=function(){var v=typeof K.getElementById!=b&&typeof K.getElementsByTagName!=b&&typeof K.createElement!=b,AC=[0,0,0],x=null;if(typeof T.plugins!=b&&typeof T.plugins[n]==Q){x=T.plugins[n].description;if(x&&!(typeof T.mimeTypes!=b&&T.mimeTypes[P]&&!T.mimeTypes[P].enabledPlugin)){x=x.replace(/^.*\s+(\S+\s+\S+$)/,"$1");AC[0]=parseInt(x.replace(/^(.*)\..*$/,"$1"),10);AC[1]=parseInt(x.replace(/^.*\.(.*)\s.*$/,"$1"),10);AC[2]=/r/.test(x)?parseInt(x.replace(/^.*r(.*)$/,"$1"),10):0}}else{if(typeof j.ActiveXObject!=b){var y=null,AB=false;try{y=new ActiveXObject(p+".7")}catch(t){try{y=new ActiveXObject(p+".6");AC=[6,0,21];y.AllowScriptAccess="always"}catch(t){if(AC[0]==6){AB=true}}if(!AB){try{y=new ActiveXObject(p)}catch(t){}}}if(!AB&&y){try{x=y.GetVariable("$version");if(x){x=x.split(" ")[1].split(",");AC=[parseInt(x[0],10),parseInt(x[1],10),parseInt(x[2],10)]}}catch(t){}}}}var AD=T.userAgent.toLowerCase(),r=T.platform.toLowerCase(),AA=/webkit/.test(AD)?parseFloat(AD.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,q=false,z=r?/win/.test(r):/win/.test(AD),w=r?/mac/.test(r):/mac/.test(AD);/*@cc_on q=true;@if(@_win32)z=true;@elif(@_mac)w=true;@end@*/return{w3cdom:v,pv:AC,webkit:AA,ie:q,win:z,mac:w}}();var L=function(){if(!h.w3cdom){return }f(H);if(h.ie&&h.win){try{K.write("<script id=__ie_ondomload defer=true src=//:><\/script>");J=C("__ie_ondomload");if(J){I(J,"onreadystatechange",S)}}catch(q){}}if(h.webkit&&typeof K.readyState!=b){Z=setInterval(function(){if(/loaded|complete/.test(K.readyState)){E()}},10)}if(typeof K.addEventListener!=b){K.addEventListener("DOMContentLoaded",E,null)}R(E)}();function S(){if(J.readyState=="complete"){J.parentNode.removeChild(J);E()}}function E(){if(e){return }if(h.ie&&h.win){var v=a("span");try{var u=K.getElementsByTagName("body")[0].appendChild(v);u.parentNode.removeChild(u)}catch(w){return }}e=true;if(Z){clearInterval(Z);Z=null}var q=o.length;for(var r=0;r<q;r++){o[r]()}}function f(q){if(e){q()}else{o[o.length]=q}}function R(r){if(typeof j.addEventListener!=b){j.addEventListener("load",r,false)}else{if(typeof K.addEventListener!=b){K.addEventListener("load",r,false)}else{if(typeof j.attachEvent!=b){I(j,"onload",r)}else{if(typeof j.onload=="function"){var q=j.onload;j.onload=function(){q();r()}}else{j.onload=r}}}}}function H(){var t=N.length;for(var q=0;q<t;q++){var u=N[q].id;if(h.pv[0]>0){var r=C(u);if(r){N[q].width=r.getAttribute("width")?r.getAttribute("width"):"0";N[q].height=r.getAttribute("height")?r.getAttribute("height"):"0";if(c(N[q].swfVersion)){if(h.webkit&&h.webkit<312){Y(r)}W(u,true)}else{if(N[q].expressInstall&&!A&&c("6.0.65")&&(h.win||h.mac)){k(N[q])}else{O(r)}}}}else{W(u,true)}}}function Y(t){var q=t.getElementsByTagName(Q)[0];if(q){var w=a("embed"),y=q.attributes;if(y){var v=y.length;for(var u=0;u<v;u++){if(y[u].nodeName=="DATA"){w.setAttribute("src",y[u].nodeValue)}else{w.setAttribute(y[u].nodeName,y[u].nodeValue)}}}var x=q.childNodes;if(x){var z=x.length;for(var r=0;r<z;r++){if(x[r].nodeType==1&&x[r].nodeName=="PARAM"){w.setAttribute(x[r].getAttribute("name"),x[r].getAttribute("value"))}}}t.parentNode.replaceChild(w,t)}}function k(w){A=true;var u=C(w.id);if(u){if(w.altContentId){var y=C(w.altContentId);if(y){M=y;l=w.altContentId}}else{M=G(u)}if(!(/%$/.test(w.width))&&parseInt(w.width,10)<310){w.width="310"}if(!(/%$/.test(w.height))&&parseInt(w.height,10)<137){w.height="137"}K.title=K.title.slice(0,47)+" - Flash Player Installation";var z=h.ie&&h.win?"ActiveX":"PlugIn",q=K.title,r="MMredirectURL="+j.location+"&MMplayerType="+z+"&MMdoctitle="+q,x=w.id;if(h.ie&&h.win&&u.readyState!=4){var t=a("div");x+="SWFObjectNew";t.setAttribute("id",x);u.parentNode.insertBefore(t,u);u.style.display="none";var v=function(){u.parentNode.removeChild(u)};I(j,"onload",v)}U({data:w.expressInstall,id:m,width:w.width,height:w.height},{flashvars:r},x)}}function O(t){if(h.ie&&h.win&&t.readyState!=4){var r=a("div");t.parentNode.insertBefore(r,t);r.parentNode.replaceChild(G(t),r);t.style.display="none";var q=function(){t.parentNode.removeChild(t)};I(j,"onload",q)}else{t.parentNode.replaceChild(G(t),t)}}function G(v){var u=a("div");if(h.win&&h.ie){u.innerHTML=v.innerHTML}else{var r=v.getElementsByTagName(Q)[0];if(r){var w=r.childNodes;if(w){var q=w.length;for(var t=0;t<q;t++){if(!(w[t].nodeType==1&&w[t].nodeName=="PARAM")&&!(w[t].nodeType==8)){u.appendChild(w[t].cloneNode(true))}}}}}return u}function U(AG,AE,t){var q,v=C(t);if(v){if(typeof AG.id==b){AG.id=t}if(h.ie&&h.win){var AF="";for(var AB in AG){if(AG[AB]!=Object.prototype[AB]){if(AB.toLowerCase()=="data"){AE.movie=AG[AB]}else{if(AB.toLowerCase()=="styleclass"){AF+=' class="'+AG[AB]+'"'}else{if(AB.toLowerCase()!="classid"){AF+=" "+AB+'="'+AG[AB]+'"'}}}}}var AD="";for(var AA in AE){if(AE[AA]!=Object.prototype[AA]){AD+='<param name="'+AA+'" value="'+AE[AA]+'" />'}}v.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+AF+">"+AD+"</object>";i[i.length]=AG.id;q=C(AG.id)}else{if(h.webkit&&h.webkit<312){var AC=a("embed");AC.setAttribute("type",P);for(var z in AG){if(AG[z]!=Object.prototype[z]){if(z.toLowerCase()=="data"){AC.setAttribute("src",AG[z])}else{if(z.toLowerCase()=="styleclass"){AC.setAttribute("class",AG[z])}else{if(z.toLowerCase()!="classid"){AC.setAttribute(z,AG[z])}}}}}for(var y in AE){if(AE[y]!=Object.prototype[y]){if(y.toLowerCase()!="movie"){AC.setAttribute(y,AE[y])}}}v.parentNode.replaceChild(AC,v);q=AC}else{var u=a(Q);u.setAttribute("type",P);for(var x in AG){if(AG[x]!=Object.prototype[x]){if(x.toLowerCase()=="styleclass"){u.setAttribute("class",AG[x])}else{if(x.toLowerCase()!="classid"){u.setAttribute(x,AG[x])}}}}for(var w in AE){if(AE[w]!=Object.prototype[w]&&w.toLowerCase()!="movie"){F(u,w,AE[w])}}v.parentNode.replaceChild(u,v);q=u}}}return q}function F(t,q,r){var u=a("param");u.setAttribute("name",q);u.setAttribute("value",r);t.appendChild(u)}function X(r){var q=C(r);if(q&&(q.nodeName=="OBJECT"||q.nodeName=="EMBED")){if(h.ie&&h.win){if(q.readyState==4){B(r)}else{j.attachEvent("onload",function(){B(r)})}}else{q.parentNode.removeChild(q)}}}function B(t){var r=C(t);if(r){for(var q in r){if(typeof r[q]=="function"){r[q]=null}}r.parentNode.removeChild(r)}}function C(t){var q=null;try{q=K.getElementById(t)}catch(r){}return q}function a(q){return K.createElement(q)}function I(t,q,r){t.attachEvent(q,r);d[d.length]=[t,q,r]}function c(t){var r=h.pv,q=t.split(".");q[0]=parseInt(q[0],10);q[1]=parseInt(q[1],10)||0;q[2]=parseInt(q[2],10)||0;return(r[0]>q[0]||(r[0]==q[0]&&r[1]>q[1])||(r[0]==q[0]&&r[1]==q[1]&&r[2]>=q[2]))?true:false}function V(v,r){if(h.ie&&h.mac){return }var u=K.getElementsByTagName("head")[0],t=a("style");t.setAttribute("type","text/css");t.setAttribute("media","screen");if(!(h.ie&&h.win)&&typeof K.createTextNode!=b){t.appendChild(K.createTextNode(v+" {"+r+"}"))}u.appendChild(t);if(h.ie&&h.win&&typeof K.styleSheets!=b&&K.styleSheets.length>0){var q=K.styleSheets[K.styleSheets.length-1];if(typeof q.addRule==Q){q.addRule(v,r)}}}function W(t,q){var r=q?"visible":"hidden";if(e&&C(t)){C(t).style.visibility=r}else{V("#"+t,"visibility:"+r)}}function g(s){var r=/[\\\"<>\.;]/;var q=r.exec(s)!=null;return q?encodeURIComponent(s):s}var D=function(){if(h.ie&&h.win){window.attachEvent("onunload",function(){var w=d.length;for(var v=0;v<w;v++){d[v][0].detachEvent(d[v][1],d[v][2])}var t=i.length;for(var u=0;u<t;u++){X(i[u])}for(var r in h){h[r]=null}h=null;for(var q in swfobject){swfobject[q]=null}swfobject=null})}}();return{registerObject:function(u,q,t){if(!h.w3cdom||!u||!q){return }var r={};r.id=u;r.swfVersion=q;r.expressInstall=t?t:false;N[N.length]=r;W(u,false)},getObjectById:function(v){var q=null;if(h.w3cdom){var t=C(v);if(t){var u=t.getElementsByTagName(Q)[0];if(!u||(u&&typeof t.SetVariable!=b)){q=t}else{if(typeof u.SetVariable!=b){q=u}}}}return q},embedSWF:function(x,AE,AB,AD,q,w,r,z,AC){if(!h.w3cdom||!x||!AE||!AB||!AD||!q){return }AB+="";AD+="";if(c(q)){W(AE,false);var AA={};if(AC&&typeof AC===Q){for(var v in AC){if(AC[v]!=Object.prototype[v]){AA[v]=AC[v]}}}AA.data=x;AA.width=AB;AA.height=AD;var y={};if(z&&typeof z===Q){for(var u in z){if(z[u]!=Object.prototype[u]){y[u]=z[u]}}}if(r&&typeof r===Q){for(var t in r){if(r[t]!=Object.prototype[t]){if(typeof y.flashvars!=b){y.flashvars+="&"+t+"="+r[t]}else{y.flashvars=t+"="+r[t]}}}}f(function(){U(AA,y,AE);if(AA.id==AE){W(AE,true)}})}else{if(w&&!A&&c("6.0.65")&&(h.win||h.mac)){A=true;W(AE,false);f(function(){var AF={};AF.id=AF.altContentId=AE;AF.width=AB;AF.height=AD;AF.expressInstall=w;k(AF)})}}},getFlashPlayerVersion:function(){return{major:h.pv[0],minor:h.pv[1],release:h.pv[2]}},hasFlashPlayerVersion:c,createSWF:function(t,r,q){if(h.w3cdom){return U(t,r,q)}else{return undefined}},removeSWF:function(q){if(h.w3cdom){X(q)}},createCSS:function(r,q){if(h.w3cdom){V(r,q)}},addDomLoadEvent:f,addLoadEvent:R,getQueryParamValue:function(v){var u=K.location.search||K.location.hash;if(v==null){return g(u)}if(u){var t=u.substring(1).split("&");for(var r=0;r<t.length;r++){if(t[r].substring(0,t[r].indexOf("="))==v){return g(t[r].substring((t[r].indexOf("=")+1)))}}}return""},expressInstallCallback:function(){if(A&&M){var q=C(m);if(q){q.parentNode.replaceChild(M,q);if(l){W(l,true);if(h.ie&&h.win){M.style.display="block"}}M=null;l=null;A=false}}}}}();var UrlTemplate = Class.create({
	initialize: function(url) {
		this.url = url;
	},

	isNotNull: function(value) {
		return value != 'NULL';
	},
	
	// r for replace
	r: function(placeholder, value) {
		if (this.isNotNull(value)) {
			this.url = this.url.replace(placeholder, encodeURIComponent(value));
		} else {
			this.url = this.url.replace(placeholder, encodeURIComponent(' '));
		}
		return this;
	}
});
var TextResource = Class.create({
  initialize: function(tr) {
    this.tr = tr;
    this.unusedReplacements = new Array();
  },

  string: function() {
    var appendix = '';
    if (global.isPlaya && this.unusedReplacements.length > 0) {
      appendix = '[';
      for (var i = 0; i < this.unusedReplacements.length; ++i) {
        appendix += '(' + this.unusedReplacements[i] + ')';
      }
      appendix += ']';
    }
    return this.tr + appendix;
  },
  
  // r for replace
  r: function(placeholder, value) {
    if (this.tr.indexOf(placeholder) < 0) {
      this.unusedReplacements.push(placeholder + " -> " + value);
    } else {
      this.tr = this.tr.replace(placeholder, value);
    }
    return this;
  }
});
var SortableBox = {
	initializeSortableBox : function(tagName) {
		this.sortTagName = tagName;
		this.sorterBtnDiv = this.el.down('.sorterBtns');
		if (this.sorterBtnDiv != undefined) {
			this.setupSorterBtns();
		}
	},
	
	setupSorterBtns: function(opacityOnly) {
		for (var btn = this.sorterBtnDiv.down(this.sortTagName); btn != undefined; btn = btn.next(this.sortTagName)) {
			if (this.options.sortOrder == btn.readAttribute('class'))
				btn.addClassName('selected');
			else
				btn.removeClassName('selected');
			if (!opacityOnly) {
				this.safeObserve(btn, 'click', this.onSorterBtnClick.bindAsEventListener(this));
				this.safeObserve(btn, 'mouseover', this.onSorterBtnOver.bindAsEventListener(this));
				this.safeObserve(btn, 'mouseout', this.onSorterBtnOut.bindAsEventListener(this));
			}
		}
	},
	
	onSorterBtnClick: function(ev) {
		ev.stop();
		if (this.requestRunning || this.disablePaging)
			return;

		var btn = ev.findElement(this.sortTagName);
		if (this.options.sortOrder == btn.readAttribute('class').replace(/\s*selected\s*/, ''))
			return;

		this.options.sortOrder = btn.readAttribute('class').replace(/\s*selected\s*/, '');
		this.setupSorterBtns(true);
		this.options.currentPage = 0;
		this.refresh();
	},
	
	onSorterBtnOver: function(ev) {
		var btn = ev.findElement(this.sortTagName);
		if (!btn.hover) {
			btn.hover = true;
			btn.addClassName('selected');
		}
	},
	
	onSorterBtnOut: function(ev) {
		var btn = ev.findElement(this.sortTagName);
		btn.hover = false;
		if (this.options.sortOrder == btn.readAttribute('class').replace(/\s*selected\s*/, ''))
			btn.addClassName('selected');
		else
			btn.removeClassName('selected');
	}
};function notifySound() {
	if (global.isBackground) {
		var flashMovie = getFlashMovieObject("notifySound");
		flashMovie.Rewind();
		flashMovie.Play();
	}
}

function getFlashMovieObject(movieName) {
	if (window.document[movieName]) {
		return window.document[movieName];
	}
	if (navigator.appName.toLowerCase().indexOf('microsoft') == -1) {
		if (document.embeds && document.embeds[movieName])
			return document.embeds[movieName];
	}
	else {
		return document.getElementById(movieName);
	}
}
var SearchBox = {
	initializeSearchBox: function() {
		this.searchSplitRe = new RegExp("[\\s,\\.;]+");
	
		this.searchBox = this.el.down('.popupSearchBox');
		this.searchBoxType = 'popup';
		
		// support inline search boxes
		if (this.searchBox == undefined) {
			this.searchBox = this.el.down('.inlineSearchBox');
			this.searchBoxType = 'inline';
		}
		
		if (this.searchBox != undefined) {
			if (this.searchBoxType == 'popup') {
				this.searchBox.hide();
				this.searchBox.addClassName('hidden');
				this.searchBtn = this.el.down('.searchBtnContainer');			
				this.safeObserve(this.searchBtn, 'click', this.onSearchBtnClick.bindAsEventListener(this));				
			}
			
			this.searchBoxInput = this.searchBox.down('div').down('input');			
			this.safeObserve(this.searchBoxInput, 'keypress', this.onSearchBoxKeypress.bindAsEventListener(this));
			this.searchBoxInput.value = this.options.searchPhrases.join(" ");
			
			if (this.searchBoxType == 'popup') {
				this.searchClearBtn = this.searchBox.down('div').down('.cancelBtn');
				this.safeObserve(this.searchClearBtn, 'click', this.onSearchClearClick.bindAsEventListener(this));
			}			
			
			this.searchGoBtn = this.searchBox.down('div').down('.goBtn');
			this.safeObserve(this.searchGoBtn, 'click', this.onSearchGoClick.bindAsEventListener(this));
			this.searchPhrasesLabel = this.el.up().down('.searchPhrasesLabel');
			this.searchPhrasesLabel.hide();
			this.searchPhrasesDisplay = this.el.up().down('.searchPhrases');
			this.safeObserve(this.searchPhrasesDisplay, 'click', this.onCancelSearchPhrase.bindAsEventListener(this));
			
			if (this.searchBoxType == 'popup') {
				// reparent
				this.searchBox.remove();
				global.getToplevelElement().appendChild(this.searchBox);
				this.searchBox.setStyle({
					position:'absolute',
					zIndex:10
				});
			}
		}
	},
	
	onSearchBtnClick: function(ev) {
		if (this.searchBox.hasClassName('hidden')) {
			this.searchBox.removeClassName('hidden');
			this.searchBox.show();
			if (this.searchBoxBackdrop == undefined) {
				var bpos = this.searchBtn.cumulativeOffset();
				var bdim = this.searchBtn.getDimensions();
				var boxdim = this.searchBox.getDimensions();
				this.searchBox.setStyle({
					left: (bpos.left - boxdim.width - 16) + 'px',
					top: (bpos.top + bdim.height + 16) + 'px'
				});

				this.searchBoxBackdrop = Builder.node('div', { className:'searchboxBackdrop' });
				Element.extend(this.searchBoxBackdrop);
				this.searchBox.insert({ before:this.searchBoxBackdrop });
				this.searchBoxBackdrop.setOpacity(.55);
				this.searchBoxBackdrop.setStyle({
					width: (this.searchBox.getWidth() + 32) + 'px',
					height: (this.searchBox.getHeight() + 32) + 'px',
					position:'absolute',
					top: (this.searchBox.offsetTop - 16) + 'px',
					left: (this.searchBox.offsetLeft - 16) + 'px'
				});
			}
			this.searchBoxBackdrop.show();
			this.searchBox.down('div').down('input').focus();
		} else {
			this.hideSearchBox();
		}
	},
	
	hideSearchBox: function() {
			this.searchBox.addClassName('hidden');
			this.searchBoxBackdrop.hide();
			this.searchBox.hide();
	},
	
	goSearch: function() {
		if (this.requestRunning || this.disablePaging)
			return;
		this.options.searchPhrases = new Array();
		this.searchBoxInput.value.split(this.searchSplitRe).uniq().each((function(el) {
			if (el.strip().length != 0)
				this.options.searchPhrases.push(el);
		}).bind(this));
		
		// check for language selection
		var _languages = null;
		this.searchBox.select('input[type="radio"]').each(function(inp) {
			if (inp.checked) {
				_languages = inp.value.split(',');
			}
		});
		if (_languages != null) {
			this.options.languages = _languages;
		}
		
		if (this.searchPhrasesDisplay) {
			if (this.options.searchPhrases.length == 0) {
				this.searchPhrasesDisplay.hide();
				this.searchPhrasesLabel.hide();
			} else {
				this.searchPhrasesLabel.show();
				this.searchPhrasesDisplay.show();
				this.searchPhrasesDisplay.update(' ');
				var first = true;
				this.options.searchPhrases.each((function(el) {
					var newSpan = Builder.node('span', { className: 'searchPhraseCancel' }, el + '(x)');
					if (first)
						first = false;
					else
						this.searchPhrasesDisplay.innerHTML += ', ';
					this.searchPhrasesDisplay.appendChild(newSpan);
				}).bind(this));
				//this.searchPhrasesDisplay.update(' ' + this.options.searchPhrases.join(', '));
			}
		}
		
		this.options.currentPage = 0;
		this.refresh();
		
		if (this.searchBoxBackDrop != undefined)
			this.hideSearchBox();
	},
	
	onCancelSearchPhrase: function(ev) {
		var sp = ev.findElement('.searchPhraseCancel');
		if (sp) {
			ev.stop();
			if (this.requestRunning || this.disablePaging)
				return;
			
			var phrase = sp.innerHTML.replace('(x)', '');
			var pos = this.options.searchPhrases.indexOf(phrase);
			if (pos >= 0) {
				this.options.searchPhrases.splice(pos, 1);
				this.searchBoxInput.value = this.options.searchPhrases.join(' ');
				if (this.options.searchPhrases.length == 0) {
					this.searchPhrasesLabel.hide();
				}
				this.goSearch();
			}
		}
	},
	
	onSearchGoClick: function(ev) {
		ev.stop();
		this.goSearch();
	},

	onSearchBoxKeypress: function(ev) {
		if (ev.keyCode == 13) {
			ev.stop();
			this.goSearch();
		}
	},
	
	onSearchClearClick: function(ev) {
		ev.stop();
		if (this.requestRunning || this.disablePaging)
			return;

		this.searchPhrasesLabel.hide();
		this.searchPhrasesDisplay.hide();

		if (this.options.searchPhrases.length == 0) {
			this.hideSearchBox();
			return;
		}
		this.searchBoxInput.value = '';
		this.options.searchPhrases = [];
		this.options.currentPage = 0;
		this.refresh();
		this.hideSearchBox();
	}
};/*
 * Progress Indicating Control
 */
var ProgressIndicatingControl = {
	showProgressIndicator: function(positionRelative, cssRuleForAlignEl) {
		if (this.suppressProgressIndicator) return;
		if (this.progressIndicator == undefined) {
			this.progressIndicator = Builder.node('div', { className:'progressIndicatorDiv' });
			Element.extend(this.progressIndicator);
			var progImg = Builder.node('img', { src:'/img/tng/progress.gif', className:'progressIndicator' });
			Element.extend(progImg);
			this.progressIndicator.appendChild(progImg);
			if (positionRelative != undefined && positionRelative) {
				this.positionRelative = true;
			} else {
				global.getToplevelElement().appendChild(this.progressIndicator);
				this.positionRelative = false;
			}
		}
		if(cssRuleForAlignEl == undefined) {
			cssRuleForAlignEl = '.layoutDiv';
		}
		var alignEl = this.el.up(cssRuleForAlignEl);
		if (!alignEl)
			alignEl = this.el;
		var masterDims = alignEl.getDimensions();
		if (this.positionRelative) {
			alignEl.makePositioned();
			alignEl.appendChild(this.progressIndicator);
			this.progressIndicator.setStyle({
				left: 0,
				top: 0,
				width: masterDims.width + 'px',
				height: masterDims.height + 'px'
			});
		} else {
			var masterPos = alignEl.cumulativeOffset();
			this.progressIndicator.setStyle({
				left:masterPos.left + 'px',
				top:masterPos.top + 'px',
				width: masterDims.width + 'px',
				height: masterDims.height + 'px'
			});
		}
		this.progressIndicator.show();
		this.progressIndicator.setOpacity(.5)		
	},
	
	
	hideProgressIndicator: function() {
		if (this.progressIndicator)
			this.progressIndicator.hide();
	}
};var postingListWithMap = null;
function gmapLoadCallback() {
	if (postingListWithMap == null)
		return;
	postingListWithMap.loadMap();
}
/* IE6 specific. */
function PNGCoach() {
	for (var i = 0; i < document.images.length; i++) {
		var img = document.images[i];
		var imgName = img.src.toUpperCase();
		if (imgName.indexOf("GOOGLE") >= 0)
			continue;
		if (imgName.indexOf("HEAD_BAR") >= 0)
			continue;
		if (imgName.substring(imgName.length-3, imgName.length) == "PNG")	{
			if (img.className.indexOf('png') >= 0) continue;
			if (img.className.length > 0)
				img.className += " ";
			img.className += "png";
		}
	}
};/*
 * Cookie Handling
 */
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*3600*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else 
			var expires = "";
	document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for (var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') 
			c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) 
			return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

var global = {
	stopRequests: false,
	currentlyActiveTabPopup: undefined,
	toplevelElement: undefined,
	isIE: (new RegExp("MSIE (\\d+)\\.(\\d+)", "i").exec(navigator.appVersion) != null),
	isIE6: (new RegExp("MSIE 6\\.(\\d+)", "i").exec(navigator.appVersion) != null),
	isIE7: (new RegExp("MSIE 7\\.(\\d+)", "i").exec(navigator.appVersion) != null),	
	portal: "classic",
	DOMReady: false,
	DOMReadyConstructionList: [],
	
	handleFailedAJAJRequest: function() {
		global.stopRequests = true;
		// Delay execution of the reload a little. Otherwise, in the rare case that
		// an AJAJ-Request is aborted after a link has been clicked the page will get reloaded
		// instead of the link being followed.
		setTimeout(function() { window.location.reload(true); }, 1000);
	},
	
	getToplevelElement: function() {
		if (!global.toplevelElement) {
			global.toplevelElement = Element.down(document.body, 'form');		
			if (!global.toplevelElement)
				global.toplevelElement = document.body;
		}
		return global.toplevelElement;
	},
	
	DOMReadyConstruct: function(clazz, el, options) {
		if (global.DOMReady || !global.isIE) {
			new clazz(el, options);
		} else {
			global.DOMReadyConstructionList.push([clazz, el, options]);
		}
	},
	
	onDOMReady: function() {
		if (!global.DOMReady && !global.isIE)
			global.DOMReadyActions();
	},
	
	DOMReadyActions: function() {
		global.toplevelElement = Element.down(document.body, 'form');

		if (!global.toplevelElement)
			global.toplevelElement = document.body;

		global.window = new Window(window);
		global.createBackdrop();
		
		global.DOMReadyConstructionList.each(function(it) {
			new it[0](it[1], it[2]);
		});

		global.ie6hacks(document.body);

		document.fire("document:allSet");
	    global.DOMReady = true;
	},

	onLoadActions: function() {		
		if (!global.DOMReady)
			global.DOMReadyActions();

		var body = document.body;
		if (global.isIE6) {
			global.backdrop.setStyle({
				position: 'absolute',
				width: body.getWidth()+'px',
				height: Math.max(body.getHeight(), document.viewport.getHeight())+'px',
				top:0,
				left:0
			});
		} else {
			//Setting the global backdrop using "position: fixed" is the optimal way if not using IE6
			global.backdrop.setStyle({
				position: 'fixed',
				width: '100%',
				height: '100%',
				top:0,
				left:0
			});		
		}
		
		Event.stopObserving(window, 'load', global.onLoadActions);
		Event.observe(window, 'unload', global.onUnloadActions);
		
		global.prepareBlinkingTitle();
	},
	
	onUnloadActions: function() {
		global.toplevelElement = null;
		global.currentlyActiveTabPopup = null;
		global.tagCloud = null;
		global.backdrop = null;
		global.bdProgress = null;
		global.searchableList = null;
		Event.stopObserving(window, 'unload', global.onUnloadActions);
	},
	
	prepareBlinkingTitle: function() {
		Element.observe(document, 'blur',  global.onBlur);
		Element.observe(document, 'focus', global.onFocus);
		if (global.isIE) {
			document.onfocusin = global.onFocus;
			document.onfocusout = global.onBlur;
		}
		global.oldTitle = document.title;
	},
	
	onBlur: function(ev) {
		global.isBackground = true;
	},
	
	onFocus: function(ev) {
		global.isBackground = false;
	},
	
	blinkTitle: function() {
		if (!global.isBackground) {
			if(global.oldTitle != 'undefined')
				document.title = global.oldTitle;
			return;
		}
		var title = document.title;
		title = title.substr(1) + title.substr(0, 1);		
		document.title = title;
		
		window.setTimeout(global.blinkTitle, 100);
	},

	createBackdrop: function() {
		global.backdrop = Builder.node('div', { className:'postingBackdrop' });
		var body = document.body;
		Element.extend(body);
		Element.extend(global.backdrop);
		
		if (global.isIE6) {
			global.backdrop.setStyle({
				position: 'absolute',
				width: body.getWidth()+'px',
				height: Math.max(body.getHeight(), document.viewport.getHeight())+'px',
				top:0,
				left:0,
				display:'none',
				textAlign:'center'
			});
		} else {
			//Setting the global backdrop using "position: fixed" is the optimal way if not using IE6
			global.backdrop.setStyle({				
				position: 'fixed',
				width: '100%',
				height: '100%',
				top:0,
				left:0,
				display:'none',
				textAlign:'center'
			});			
		}
	},
	
	ie6hacks: function(el) {
		var result = new RegExp("MSIE (\\d+)\\.(\\d+)", "i").exec(navigator.appVersion);
		if (result != null) { // It's an IE
			if (parseInt(result[1]) <= 6) { // It's an IE <= 6

				// Add class "png" to all pngs.				
				PNGCoach();

				// employ CSS coach for ignorant browsers
				CSSCoach.applyCSS(el);

				/*
				 * overload methods to ensure consistency
				 */
				Element.addMethods({
					update: Element.Methods.update.wrap(function(proceed, element, content) {
						proceed(element, content);
						CSSCoach.applyCSS(el, "update");
					}),
					
					addClassName: Element.Methods.addClassName.wrap(function(proceed, element, content) {
						proceed(element, content);
						CSSCoach.applyCSS(el, "addClassName");
					}),
					
					removeClassName: Element.Methods.removeClassName.wrap(function(proceed, element, content) {
						proceed(element, content);
						CSSCoach.applyCSS(el, "removeClassName");
					})
				});
			}
		}
	},
	
	showBackdropProgressIndicator: function() {
		if (global.bdProgress == undefined) {
			global.bdProgress = Builder.node('img', { src:'/img/tng/progressBlack.gif', className:'progressIndicator' });
			Element.extend(global.bdProgress);
			global.backdrop.appendChild(global.bdProgress);
		}
		var scrollOfs = document.viewport.getScrollOffsets();
		global.bdProgress.setStyle({
			position:'absolute',
			top:(document.viewport.getHeight()/2 + scrollOfs.top).round() + 'px',
			left:(document.viewport.getWidth()/2 + scrollOfs.left).round() + 'px'
		});
		global.bdProgress.show();
	},
	
	hideBackdropProgressIndicator: function() {
		if (global.bdProgress)
			global.bdProgress.hide();
	},

	registerTagSearchableList: function(el) {
		global.searchableList = el;
	},
	
	findTagSearchableList: function(el) {
		return global.searchableList;
	},
	
	registerTagCloud: function(el) {
		global.tagCloud = el;
	},
	
	findTagCloud: function(el) {
		return global.tagCloud;
	},
	
	ie6readystatechange: function() {
		if (this.readyState == "complete") {
			global.onDOMReady();
		}
	},
	
	CSSCoachDone: function() {
		if (global.CSSCoachDoneAlready)
			return;
		global.CSSCoachDoneAlready = true;
		if ($$('.ie6preScreen')[0]) {
			Element.remove($$('.ie6preScreen')[0]);
		}
		Element.setStyle(document.body.parentNode, {
			overflowY:'auto',
			overflowX:'hidden'
		});
		Element.setStyle(document.body, {
			height:'auto'
		});
	},
	
	hhmmss: function(secs){
		time=[0,0,secs];
		for(var i=2;i>0;i--){
			time[i-1]=Math.floor(time[i]/60);
			time[i]=Math.round(time[i]%60);
			if(time[i]<10)
				time[i]='0'+time[i];
		};
		return time.join(':')
	},
	
	mmss: function(secs){
		time=[0,secs];
		for(var i=1;i>0;i--){
			time[i-1]=Math.floor(time[i]/60);
			time[i]=Math.round(time[i]%60);
			if(time[i]<10)
				time[i]='0'+time[i];
		};
		return time.join(':')
	}


};

Event.observe(window, 'load', global.onLoadActions);

//Find current portal
Element.down(document.documentElement, 'head').select('meta').each(function (meta) {
	if (meta.readAttribute('name') == 'portal') {
		global.portal = meta.readAttribute('content');
	}
});

/*@cc_on @*/
/*@if (@_win32)
document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
var script = document.getElementById("__ie_onload");
script.onreadystatechange = global.ie6readystatechange;
script = null;
/*@end @*/
var FilterableBox = {
	initializeFilterableBox : function(tagName) {
		this.filterTagName = tagName;
		this.filterBtnDiv = this.el.down('.filterBtns');
		if (this.filterBtnDiv != undefined) {
			this.setupFilterBtns();
		}
	},
	
	setupFilterBtns: function(opacityOnly) {
		for (var btn = this.filterBtnDiv.down(this.filterTagName); btn != undefined; btn = btn.next(this.filterTagName)) {
			if (this.options.memberFilter == btn.readAttribute('class'))
				btn.addClassName('selected');
			else
				btn.removeClassName('selected');
			if (!opacityOnly) {
				this.safeObserve(btn, 'click', this.onFilterBtnClick.bindAsEventListener(this));
				this.safeObserve(btn, 'mouseover', this.onFilterBtnOver.bindAsEventListener(this));
				this.safeObserve(btn, 'mouseout', this.onFilterBtnOut.bindAsEventListener(this));
			}
		}
	},
	
	onFilterBtnClick: function(ev) {
		ev.stop();
		if (this.requestRunning || this.disablePaging)
			return;

		var btn = ev.findElement(this.filterTagName);
		if (this.options.memberFilter == btn.readAttribute('class').replace(/\s*selected\s*/, ''))
			return;

		this.options.memberFilter = btn.readAttribute('class').replace(/\s*selected\s*/, '');
		this.setupFilterBtns(true);
		this.options.currentPage = 0;
		this.refresh();
	},
	
	onFilterBtnOver: function(ev) {
		var btn = ev.findElement(this.filterTagName);
		if (!btn.hover) {
			btn.hover = true;
			btn.addClassName('selected');
		}
	},
	
	onFilterBtnOut: function(ev) {
		var btn = ev.findElement(this.filterTagName);
		btn.hover = false;
		if (this.options.memberFilter == btn.readAttribute('class').replace(/\s*selected\s*/, ''))
			btn.addClassName('selected');
		else
			btn.removeClassName('selected');
	}
};/*
 * Unfortunately the Scriptaculous slide effects suck.
 * So we need to build our own.
 */
Effect.Slide = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    this.inner = element.down();
    var options = Object.extend({
			out: false,
			reserveSpace: false,
			edge: 'top',
			duration: .5
    }, arguments[1] || { });
	  options.horizontal = (options.edge == 'left' || options.edge == 'right');
    this.start(options);
  },
  setup: function() {
    this.originalStyle = { };
    this.originalInnerStyle = { };
    ['top','left','bottom','right','width','height','position','margin','padding'].each(function(k) {
      this.originalStyle[k] = this.element.style[k];
      this.originalInnerStyle[k] = this.inner.style[k];
    }.bind(this));

		this.element.makePositioned();
		this.element.makeClipping();
		this.inner.makePositioned();
		
    this.originalElementDimensions = this.element.getDimensions();
    this.originalInnerDimensions = this.originalElementDimensions;

		this.inner.setStyle({
			width: this.originalInnerDimensions.width + 'px',
			height: this.originalInnerDimensions.height + 'px'
		});
    
    var origDisplay = this.element.getStyle('display');
    if (origDisplay == 'none') {
	    this.element.setStyle({
				width: "0px", height: "0px",
				display: 'block'
			});
		}
		if (this.element.getStyle('position') == 'absolute')
			this.originalElementPositioning = this.element.positionedOffset(); //{ top: this.element.offsetTop, left: this.element.offsetLeft };
		else
			this.originalElementPositioning = { top:0, left:0 };
		if (this.inner.getStyle('position') == 'absolute')
	    this.originalInnerPositioning = this.inner.positionedOffset(); //{ top: this.inner.offsetTop, left: this.inner.offsetLeft };
	  else
			this.originalInnerPositioning = { top:0, left:0 };
		if (origDisplay == 'none') {
			this.element.setStyle({
				width: this.originalElementDimensions.width + "px",
				height: this.originalElementDimensions.height + "px",
				display: origDisplay
			});
		}

    this.dims = [this.originalElementDimensions.height, this.originalElementDimensions.width];
    
    this.factor = 1;
    this.firstUpdate = true;
  },
  update: function(position) {
    var currentScale = this.factor * position;
    if (this.options.out)
			currentScale = 1 - currentScale;
		this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
		if (this.firstUpdate) {
	    if (!this.options.out) {
				this.element.show();
				if (this.element.getStyle('visibility') == 'hidden')
					this.element.setStyle({visibility: 'visible'});
			}
			this.firstUpdate = false;
		}
  },
  finish: function(position) {
    if (this.options.out)
			this.element.hide();
		this.element.undoClipping();
		this.element.undoPositioned();
		this.inner.undoPositioned();
    this.element.setStyle(this.originalStyle);
    this.inner.setStyle(this.originalInnerStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    var innerD = { };
    if (this.options.horizontal) {
			d.width = width.round() + 'px';
			if (this.options.edge == 'right')
				d.paddingLeft = (this.originalElementDimensions.width - width.round()) + 'px';
			else {
				innerD.left = (this.originalInnerPositioning.left - this.originalElementDimensions.width + width.round()) + 'px';
				if (this.options.reserveSpace)
					d.paddingRight = (this.originalElementDimensions.width - width.round()) + 'px';
			}
		} else {
	    d.height = height.round() + 'px';
			if (this.options.edge == 'bottom')
				d.paddingTop = (this.originalElementDimensions.height - height.round()) + 'px';
			else {
				innerD.top = (this.originalInnerPositioning.top - this.originalElementDimensions.height + height.round()) + 'px';
				if (this.options.reserveSpace)
					d.paddingBottom = (this.originalElementDimensions.height - height.round()) + 'px';
			}
	  }
    this.element.setStyle(d);
    this.inner.setStyle(innerD);
  }
});
var DOMAttached = Class.create({
	initialize: function(el, options) {
		this.observingUnload = false;
		this.listenerList = [];
		this.onUnloadActions = [];
		this.el = $(el);
		this.options = options;
		this.safeObserve(window, 'unload', this.onUnload.bind(this));
		
		/*
		if (global.counter == undefined)
			global.counter = 1;
		else
			global.counter++;
		*/
	},
	
	onUnload: function(ev) {
		/*
		if (global.counter)
			alert("Got " + global.counter + " DOMAttached instances.");
		global.counter = undefined;
		*/
		this.listenerList.each(function(el) {
			Element.stopObserving(el.el, el.evStr, el.func);
			delete(el.el);
			delete(el.func);
			el.el = null;
			el.func = null;
		});
		this.listenerList.clear();
		this.onUnloadActions.each(function(it) {
			it();
			it = null;
		});
		this.onUnloadActions.clear();
		
		// Unlink the DOM element
		this.el = null;
	},
	
	safeObserve: function(el, evStr, func) {
		this.listenerList.push({el:el, evStr:evStr, func:func});
		Element.observe(el, evStr, func);
	},
	
	stopObserve: function(el, evStr) {
		this.listenerList.each(function(it) {
			if (it.el == el && it.evStr == evStr)
				Element.stopObserving(it.el, it.evStr, it.func);
			it.el = null;
			it.func = null;
			it = null;
		});
		this.listenerList = this.listenerList.compact();
	},
	
	registerUnloadAction: function(func) {
		this.onUnloadActions.push(func);			
	},
	
	removeElement: function(el) {
		this.purge(el);
		Element.remove(el);
  },

	purge: function(d) {
		var a = d.attributes, i, l, n;
		if (a) {
			l = a.length;
			for (i = 0; i < l; i += 1) {
				n = a[i].name;
				if (typeof d[n] === 'function') {
					d[n] = null;
				}
			}
		}
		a = d.childNodes;
		if (a) {
			l = a.length;
			for (i = 0; i < l; i += 1) {
				this.purge(d.childNodes[i]);
			}
		}
	},
	
	alert: function(str) {
		var req = new Ajax.Request(this.options.globalExceptionRecording, {
			method: 'post',
			parameters: { 
				message: str,
				klass: this.options.exceptionRaisingJSClass
			}
		});
		if(this.options.popupAlertBoxForExceptions) {
			if(console != undefined)
				console.error(str);
			else
				alert(str);
		}
	}
});//#REQUIRES DOMAttached

var EditAlbum = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		var newAlbumControl = this.el.down('.newAlbum');
		var editOptionsControl = this.el.down('.editOptions');
		this.currentControl = newAlbumControl == undefined ? editOptionsControl : newAlbumControl;
		
		if(newAlbumControl == undefined) {
			this.detailsEditingControl = this.el.down('.detailsEditing');
			editOptionsControl.select('span.link').each(function(item) {
				this.safeObserve(item, 'click', this.onEditDetailsClick.bindAsEventListener(this));
			}.bind(this));
		}
		
		var storeButton = this.el.down('.storeButton');
		if(storeButton != undefined)
			this.safeObserve(storeButton, 'click', this.onStoreClick.bindAsEventListener(this));
		
		this.photoUpload = this.el.down('div.addPhotos');
		this.determinePhotoUploadTool();
	},
	
	/* Handler */
	
	onSwitchToHtmlClick : function(ev) {
		this.photoUpload.down('.javaUpload').addClassName('collapsed');
		this.photoUpload.down('.htmlUpload').removeClassName('collapsed');
	},
	
	onStoreClick : function(ev) {
		if(!this.checkTitle()) {
			ev.stop();
			this.showErrorMessage(this.options.errorNoTitle);
			this.recoverTitle();
		}
	},
	
	onEditDetailsClick : function(ev) {
		var className = this.getNonLinkCssClass(ev.currentTarget);
		var innerElementToBeShown = this.findDetailsEditerByClassName(className);
		if(innerElementToBeShown != undefined) {
			if(className != 'titleOfAlbum' && className != 'descriptionOfAlbum')
				this.detailsEditingControl.down('.storeButton').hide();
			this.showDetailsEditer(innerElementToBeShown);
		} else {
			this.showErrorMessage();
		}
	},
	
	
	/* Functionalities */
	
	determinePhotoUploadTool : function() {
		if(this.photoUpload != undefined) {
			var context = new Object();
			context.count = 0;
			context.instance = this;
		
			context.activateTool = function(useJava) {
				if(useJava) {
					this.instance.safeObserve(this.instance.photoUpload.down('.switchToHtml').down('.link'), 'click', this.instance.onSwitchToHtmlClick.bindAsEventListener(this.instance));
				} else {
					this.instance.photoUpload.down('.javaUpload').addClassName('collapsed');
					this.instance.photoUpload.down('.htmlUpload').removeClassName('collapsed');
				}
				this.instance.photoUpload.down('.uploadOverlay').addClassName('collapsed');
				if(this.intervalId != undefined)
					clearInterval(this.intervalId);
			}.bind(context);
			context.intervalId = setInterval(function() {
				this.count++;
				if(navigator.javaEnabled()) {
					if(this.instance.photoUpload.down('applet').getButtonClicked == undefined) {
						if(this.count >= 10)
							this.activateTool(false)
						return;
					} else {
						this.activateTool(true);
					}
				} else {
					this.activateTool(false);
				}
			}.bind(context), 500);
		}
	},
	
	hideCurrentControl : function() {
		this.currentControl.addClassName('collapsed');
	},
	
	findDetailsEditerByClassName : function(className) {
		var specifier = 'div.' + className;
		return this.detailsEditingControl.down(specifier);
	},
	
	showDetailsEditer : function(detailsEditerInnerElementToBeShown) {
		this.hideCurrentControl();
		detailsEditerInnerElementToBeShown.removeClassName('collapsed');
		this.detailsEditingControl.removeClassName('collapsed');
		this.currentControl = this.detailsEditingControl;
	},
	
	getNonLinkCssClass : function(element) {
		var result = new Object();
		$w(element.className).each(function(item) {
			if(item != 'link') {
				if(this.tooManyClassNames == undefined) {
					this.name = item;
					this.tooManyClassNames = false;
				} else {
					this.tooManyClassNames = true;
				}
			}
		}.bind(result));
		if(result.tooManyClassNames) {
			this.alert('too many class names: "' + element.className + '". Only "link" and one more class name to identify the link allowed!');
		}
		return result.name;
	},
	
	checkTitle : function() {
		var input = this.currentControl.down('div.titleOfAlbum').down('input[type="text"]');
		var title = input.value.strip();
		input.value = title;
		return title.length > 0;
	},
	
	showErrorMessage : function(message) {
		var error = this.el.down('.error');
		if(message == undefined)
			message = this.options.genericError;
		error.down('p').update(message);
		error.removeClassName('collapsed');
	},
	
	recoverTitle : function() {
		this.currentControl.down('div.titleOfAlbum').down('input[type="text"]').value = this.options.recoveryTitle;
	}

});//#REQUIRES DOMAttached

var EditAlbumList = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.rotLeftURL = this.options.rotLeftURL;
		this.rotRightURL = this.options.rotRightURL;
		this.delHRURL = this.options.delHRURL;
		var ul = this.el.down('ul');
		if(this.options.RotateReorder) {
			Sortable.create(ul, { overlap: 'horizontal', constraint : false});
			this.safeObserve(this.el.up('form'), 'submit', this.onUpdate.bindAsEventListener(this));
		}
		if(this.options.RotateReorder || this.options.Delete) {
			this.safeObserve(ul, 'click', this.onClick.bindAsEventListener(this));
		}
	},

	handleRotation: function(req, img) {
		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}	
		
		if (json.url) {
			img.src = json.url;
		}
	},
	
	handleHR: function(req, img) {
		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}	
		
		img.addClassName('collapsed');
	},
	
	onClick: function(ev) {
		if (ev.findElement('input'))
			return;
		ev.stop();
		var target = ev.findElement('img');
		if (target == undefined)
			return;
			
		if (target.hasClassName('rotLeft')) {
			var id = target.up('li').down('.pid').value;
			var url = this.rotLeftURL.replace('PLH_id', id);
			var img = target.up('li').down('img');
			new Ajax.Request(url, { method: 'get', onSuccess: function(req) { this.handleRotation(req, img); }.bind(this)  });
		} else if (target.hasClassName('rotRight')) {
			var id = target.up('li').down('.pid').value;
			var url = this.rotRightURL.replace('PLH_id', id);
			var img = target.up('li').down('img');
			new Ajax.Request(url, { method: 'get', onSuccess: function(req) { this.handleRotation(req, img); }.bind(this) });
		} else if (target.hasClassName('delHR')) {
			var id = target.up('li').down('.pid').value;
			var url = this.delHRURL.replace('PLH_id', id);
			new Ajax.Request(url, { method: 'get', onSuccess: function(req) { this.handleHR(req, target); }.bind(this) });
		}
	},
	
	onUpdate: function(ev) {
		var i = 1;
		for (var curLi = this.el.down('li'); curLi != undefined; curLi = curLi.next('li')) {
			var sortKey = curLi.down('.sortKey');
			sortKey.value = i;
			++i;
		}
	}
});
//#REQUIRES DOMAttached

 var EnhancedButton = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.oneClickOnly = this.options.oneClickOnly;
		this.safeObserve(this.el, 'click', this.onclick.bindAsEventListener(this));
		
		/*
		 * Mimick the behavior of a native button. If you click and hold the mouse button
		 * on a butten, then drag the cursor out of the button and onto the button, again
		 * a native button is pushed down, again. This button is not going to be pushed down
		 * again because there is no reliable way to find out whether the mouse button has
		 * been released between a mouseout and a mouseover event.
		 */
		this.safeObserve(this.el, 'mousedown', this.onMouseDown.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseup', this.onMouseUp.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseout', this.onMouseUp.bindAsEventListener(this));
		this.removeElement(this.el.next('script'));
	},
	
	onclick: function(ev) {
	
	  // temporary fix: oneClickOnly collides with NeatUpload in FF
	  if (typeof NeatUpload_ClearFileInputs != 'undefined')
	    return;
	
		// We can't disable the button instantaniously because then the ASPX JS won't work anymore.
		// Thus we wait 0ms causing the event chain to be processed before the button is disabled (since JS is singlethreaded).
	  if (this.oneClickOnly)
			setTimeout(function() {	this.el.disable(); }.bindAsEventListener(this), 0);
	},
	
	onMouseDown: function(ev) {
		if (!this.el.disabled)
			this.el.addClassName('pushed');
	},
	
	onMouseUp: function(ev) {
		this.el.removeClassName('pushed');
	}
});
//#REQUIRES DOMAttached

var EventCalendar = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		var tds = this.el.select("td");
		this.eventListMgr = ({ currentlyActive: undefined });

		tds.each(function(td) {
		  var eventList = td.down(".eventList");
		  if (eventList != undefined) {
				new EventCalendarCell(td, this.eventListMgr);
		  }
		}.bind(this));
	}
});
//#REQUIRES DOMAttached

var EventCalendarCell = Class.create(DOMAttached, {
	initialize: function($super, el, eventListMgr) {
		$super(el);

		this.eventList = el.down(".eventList");
		this.eventListMgr = eventListMgr;

		// install observers
		this.safeObserve(this.el, 'mouseover', this.onMouseOver.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseout', this.onMouseOut.bindAsEventListener(this));
		this.safeObserve(this.eventList, 'mouseover', this.onMouseOver.bindAsEventListener(this));
		this.safeObserve(this.eventList, 'mouseout', this.onMouseOut.bindAsEventListener(this));
		
		//NOT PART OF YAL
		//this.safeObserve(this.eventList, 'click', this.onClickEventList.bindAsEventListener(this));
		
		// reparent the list
		this.eventList.parentNode.removeChild(this.eventList);
		global.getToplevelElement().appendChild(this.eventList);
		
		this.eventListVisible = false;
		this.hideTimer = undefined;
	},

	onClickEventList: function(ev) {
		var link = ev.findElement('a');
		if (link) {
			ev.stop();
			if (!link.details) {
				link.details = new PostingListItemDetailsLoader(link.readAttribute('href'));
			}
			link.details.show();
		}
	},
	
	onMouseOver: function(ev) {
	  if (this.eventListVisible == false)
	    this.showEventList();
	  else if (this.hideTimer != undefined) {
			clearTimeout(this.hideTimer);
			this.hideTimer = undefined;
		}
	},
	
	onMouseOut: function(ev) {
	  if (this.eventListVisible == true)
	    this.hideTimer = setTimeout(this.hideEventList.bind(this), 500);
	},
	
	showEventList: function() {
	  if (this.eventListMgr.currentlyActive != undefined)
	    this.eventListMgr.currentlyActive.hideEventList();
	  this.eventListMgr.currentlyActive = this;

	  this.eventListVisible = true;
		var ofs = this.el.cumulativeOffset();
		var dim = this.el.getDimensions();
		ofs.left += dim.width - 10;
		ofs.top += dim.height - 10;
		
		dim = this.eventList.getDimensions();

		var screenDim = document.body.getDimensions();
		if (screenDim.width - 5 < ofs.left + dim.width) {
		  ofs.left -= ofs.left + dim.width - screenDim.width + 5;
		}
		if (screenDim.height - 5 < ofs.top + dim.height)
		  ofs.top -= ofs.top + dim.height - screenDim.height + 5;

		this.eventList.style.top = ofs.top.toString() + "px";
		this.eventList.style.left = ofs.left.toString() + "px";
		this.eventList.style.display = "block";
	},
	
	hideEventList: function() {
	  this.eventListVisible = false;
	  if (this.hideTimer != undefined) {
			clearTimeout(this.hideTimer);
		  this.hideTimer = undefined;
		}
		this.eventListMgr.currentlyActive = undefined;
		this.eventList.style.display = "none";
	}
});

//#REQUIRES DOMAttached

var ExternalHyperLink = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},

	onClick: function(ev) {
		window.open(this.el.readAttribute('href'));
		ev.stop();
	}
});//#REQUIRES DOMAttached

var FCKEditorBox = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.oFCKeditor = new FCKeditor(this.el.down('textarea').id);
		this.oFCKeditor.Height = "256";
		this.oFCKeditor.BasePath = this.options.url;
		this.oFCKeditor.Config["CustomConfigurationsPath"] = this.options.url + 'mpconf.js';
		this.oFCKeditor.ToolbarSet = 'mp';
		this.oFCKeditor.ReplaceTextarea();
	}
});

//#REQUIRES PostingListItemDetailsLoader
//#REQUIRES DOMAttached

var FeedbackPopup = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);
		this.trigger = this.el.down('.FeedbackPopupTrigger');
		if(this.trigger != undefined) {
			this.safeObserve(this.trigger, 'click', this.showPopup.bindAsEventListener(this));
		}
		this.storeBtn = this.el.down('.sendFeedback');
		if(this.storeBtn != undefined) {
			this.safeObserve(this.storeBtn, 'click', this.storeFeedback.bindAsEventListener(this));
		}
	},
	
	showPopup: function(event) {
		var req = new Ajax.Request(this.options.popupUrl, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this)
		});
	},
	
	onPopupLoaded: function(req) {
		var json = req.responseText.evalJSON();
		global.showBackdropProgressIndicator();
		if(global.feedpopup != undefined) {
			global.feedpopup.hide();
		}
		global.feedpopup = new PostingListItemDetailsLoader();
		global.feedpopup.onDetailsLoaded(req);
	},
	
	storeFeedback: function(event) {
		var url = this.options.storeFeedbackUrl;
		
		var valSubj = this.escapeUrlParam(this.el.down('.txtSubject').getValue());
		var valMess = this.escapeUrlParam(this.el.down('.txtMessage').getValue());
		
		url = url.replace('PLH_subj', valSubj).replace('PLH_message', valMess);
		var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onStored.bind(this),
			onException: this.onStoreFail.bind(this),
			onFailure: this.onStoreFail.bind(this)
		});
	},
	
	onStored: function(req) {
		var json = req.responseText.evalJSON();
		var success = json.success == 'y';
		if(!success) {
			onStoreFail();
			return;
		}
		alert(this.options.messageSucc);
		global.feedpopup.hide();
		global.feedpopup = null;
	},
	
	onStoreFail: function() {
		alert(this.options.messageFail);
	},
	
	escapeUrlParam: function(param) {
		var p = "";
		for(var i = 0; i < param.length; i++) {
			p += param.charCodeAt(i);
			if(i != param.length - 1) {
				p += ';';
			}
		}
		return p;
	}
	
});//#REQUIRES DOMAttached

var FocusFirstInput = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);	
		
		if (this.options.overrideFocusFirstInput == true)
			return;

		if (!this.el.visible())
			return;
		
		var inputs = this.el.select('*');
		for (var i = 0 ; i < inputs.length; ++i) {
			var curInput = inputs[i];
			if ((curInput.tagName == 'TEXTAREA' || (curInput.tagName == 'INPUT' && curInput.type == 'text')) && curInput.disabled != true) {
				try {
					curInput.focus();
					return;
				} catch (e) {}
			}
		}
	}
});

//#REQUIRES FocusFirstInput

var EditPosting = Class.create(FocusFirstInput, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({ overrideFocusFirstInput : false }, options));
		$$('a[href^="#postingproperty_"]').each(function(exp) {
			this.safeObserve(exp, 'click', this.onClickExpand.bindAsEventListener(this));
		}.bind(this));
		
		var submit = this.el.down('.addresssubmit');
		this.safeObserve(submit, 'click', this.onSubmit.bindAsEventListener(this));
		
		var btnCancel = this.el.down('.btnCancel');
		this.safeObserve(btnCancel, 'click', this.onCancel.bindAsEventListener(this));
		
		this.simpleOrAdvanced = this.el.down('.simpleOrAdvanced');
		this.showAdvanced = this.el.down('.showAdvanced');
		this.simplePlazas = this.el.down('.simplePlazaSelection');
		this.advancedPlazas = this.el.down('.plazaSelection');
		if (this.simpleOrAdvanced) {
			if (this.simpleOrAdvanced.value == "0") {
				this.advancedPlazas.hide();
				if (this.showAdvanced) {
					this.safeObserve(this.showAdvanced, 'click', this.onShowAdvanced.bindAsEventListener(this));
				}
			} else {
				this.simplePlazas.hide();
				this.showAdvanced.hide();
			}
		}
		
		if (this.options.videoExplaination) {
			var ffmpeg = this.el.down(".ffmpeg");
			if(ffmpeg != undefined) {
				this.safeObserve(ffmpeg, 'click', function() { alert(this.options.videoExplaination); }.bind(this));
			}
		}
		
		document.loadReady = this.loadReady.bind(this);
		document.saveReady = false;
		
		// assume that we are online
		this.online = true;
		
		if(this.el.hasClassName('writeComment')) {
			this.safeObserve(this.el.down('textarea'), 'focus', function() { this.el.setStyle({'height': 'auto'}); }.bind(this));
		}
	},
	
	loadReady : function() {
		var iframe = this.el.down('iframe');
		this.iframeDoc = iframe.contentWindow || iframe.contentDocument;
		if (this.iframeDoc.document) {
			this.iframeDoc = this.iframeDoc.document;
		}
		this.iframeSubmit = this.iframeDoc.getElementById('submit');
		if (typeof(this.iframeSubmit) != 'undefined') {
			Element.hide(this.iframeSubmit);
		}
	},
	
	onSubmit : function(ev) {
		if (document.saveReady == false){
			var req = new Ajax.Request(this.options.loginStatusUrl, {
				asynchronous: false,
				method: 'get',
				onSuccess: this.onLoginCheck.bind(this),
				parameters: {
					nocache: Math.random()
				}
			});
			
			if (!this.online) {
				ev.stop();
				alert(this.options.loginStatusWarning);
			}
			
			if (this.options.hasApplication) {
				var title = this.iframeDoc.getElementById('title');
				if (typeof(title) != 'undefined') {
					var postingTitle = this.el.down('.postingTitleInput');
					postingTitle.down('input').value = title.value;
				}
				if (typeof(this.iframeSubmit) != 'undefined') {
					this.iframeSubmit.onclick();
					ev.stop();
				}
			}
		}
	},
	
	onCancel : function(ev) {
		if (this.el.up('form').down('.bypass') != undefined) {
			this.el.up('form').down('.bypass').down('input').value = 'true';
		}
		if (!confirm(this.options.questionPostCancel)) {
			ev.stop();
		}
	},
	
	onLoginCheck : function(req) {
		try {
			var json;
			try {
				json = req.responseText.evalJSON();
			} catch(e) {
				global.handleFailedAJAJRequest();
				return;
			}

			this.online = json.online;
		} catch(e) {
			window.alert(e.fileName + ":" + e.lineNumber + ": " + e.message);
			return;
		}
	},
	
	onShowAdvanced : function(e) {
		this.simpleOrAdvanced.value = "1";
		this.simplePlazas.hide();
		this.showAdvanced.hide();
		this.advancedPlazas.show();
	},
	
	onClickExpand : function(e) {
		var target = e.target.getAttribute("href", false);
		var id = target.substr(target.indexOf("#postingproperty_") + 1);
		var inp = document.getElementById(id);
		if (inp) {
			inp.removeClassName('collapsed');
			inp.show();
			inp.focus();
			//e.target.setStyle({'display' : 'none'});
		}
	}
});
//#REQUIRES FocusFirstInput

var LoginBtn = Class.create(FocusFirstInput, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.link = this.el.previous("a");
		
		if (this.options.layoutMode == "Popup") {
			this.safeObserve(this.link, 'click', this.onClick.bindAsEventListener(this));
		}
		// this.options.focusForm points to the single login form
		// that is shared among all login buttons.
		// override this.el with the data of 'the other' form
		if (this.options.focusForm != undefined) {
			this.el = $(this.options.focusForm);
		}
		
		this.password = this.el.down('.password').down('input');
		this.username = this.el.down('.username').down('input');
		this.cancelBtn = this.el.down('.cancelBtn');
		this.forgotPasswordBtn = this.el.down('.forgotPassword');
		this.loginBtn = this.el.down('.loginBtn');
		this.errDiv = this.el.down('.errorMsg');
		this.rememberme = this.el.down('.rememberMe');
		
		if (this.options.layoutMode == "Popup" && this.options.focusForm == undefined) {
			this.safeObserve(this.cancelBtn, 'click', this.onCancel.bindAsEventListener(this));
		}
	
		if (this.options.focusForm == undefined) {
			this.safeObserve(this.loginBtn, 'click', this.onLogin.bindAsEventListener(this));
			if (typeof(this.forgotPasswordBtn) != "undefined") {
				this.safeObserve(this.forgotPasswordBtn, 'click', this.onForget.bindAsEventListener(this));
			}
			this.safeObserve(this.password, 'keypress', (function(ev) { if (ev.keyCode == 13) this.onLogin(ev); }).bindAsEventListener(this));

			if (this.options.layoutMode == "Popup") {
				this.el.hide();
				this.el.remove();
				global.getToplevelElement().appendChild(this.el);
			}
		}

		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.link = null;
		this.password = null;
		this.username = null;
		this.cancelBtn = null;
		this.forgotPasswordBtn = null;
		this.loginBtn = null;
		this.errDiv = null;
		this.rememberme = null;
	},
	
	onClick: function(ev) {
		ev.stop();
		this.showLoginBox();
	},
	
	showLoginBox: function() {
		this.el.remove();
		global.getToplevelElement().appendChild(this.el);
		var scrollOfs = document.viewport.getScrollOffsets();
		this.password.enable();
		this.username.enable();
		this.loginBtn.enable();
		if (this.cancelBtn)	
			this.cancelBtn.enable();
		this.password.value = '';
		this.errDiv.update("&nbsp;");
		this.el.setStyle({
			position: 'absolute',
			top: ((document.viewport.getHeight() - this.el.getHeight()) / 2 + scrollOfs.top).round() + "px",
			left: ((document.viewport.getWidth() - this.el.getWidth()) / 2 + scrollOfs.left).round() + "px"
		});
		this.el.setOpacity(0);
		this.fadeEff = new Effect.Parallel([
			new Effect.Fade(this.el, { from:0.0, to:1, duration:.5 }),
			new Effect.Fade(global.backdrop, { from:0.0, to:0.55, duration:.5 })
		], { duration: .5 });
		global.backdrop.setOpacity(0);
		global.backdrop.show();
		global.getToplevelElement().appendChild(global.backdrop);
		this.el.show();
		this.username.focus();
		this.escapeHandlerId = global.window.registerEscapeHandler(this.hideLoginBox.bind(this));
	},
	
	hideLoginBox: function() {
		if (this.lock) return;
		global.window.unregisterEscapeHandler(this.escapeHandlerId);
		global.backdrop.hide();
		this.el.hide();
	},
	
	onLogin: function(ev) {
		ev.stop();
		if (this.lock) return;
		this.lock = true;
		this.password.disable();
		this.username.disable();
		this.loginBtn.disable();
		if (this.cancelBtn)	
			this.cancelBtn.disable();

		var req = new Ajax.Request(this.options.loginUrl, {
			method: 'post',
			onSuccess: this.requestSuccessful.bind(this),
			onException: this.requestFailed.bind(this),
			onFailure: this.requestFailed.bind(this),
			parameters: {
				password: this.password.value,
				username: this.username.value,
				rememberme: this.rememberme ? this.rememberme.checked : false
			}
		});
	},
	
	onCancel: function(ev) {
		if (this.lock) return;
		this.hideLoginBox();
	},
	
	onForget: function(ev) {
		ev.stop();
		if (this.lock) return;
		if (!this.username.value) {
			window.alert(this.options.forgotPasswordWarning);
			return;
		}
		this.lock = true;
		this.password.disable();
		this.username.disable();

		var req = new Ajax.Request(this.options.forgotPasswordUrl, {
			method: 'post',
			onSuccess: this.requestSuccessful.bind(this),
			onException: this.requestFailed.bind(this),
			onFailure: this.requestFailed.bind(this),
			parameters: {
				username: this.username.value
			}
		});
	},
	
	requestSuccessful: function(req) {
		var json;
		try {
			json = req.responseText.evalJSON();
		} catch(e) {
			this.lock = false;
			this.password.enable();
			this.username.enable();
			this.loginBtn.enable();
			if (this.cancelBtn)	
				this.cancelBtn.enable();
			this.errDiv.update(this.options.generalFailureMessage + "<br/>" + e.message);
			return;
		}
		
		if (json.success) {
			if (!json.error) {
				this.errDiv.update("&nbsp;");
				if (json.referer) {
					this.options.redirectUrl = json.referer;
				}
				if (this.options.layoutMode == "Widget") {
					window.setTimeout((function() { window.parent.location = this.options.redirectUrl; }).bindAsEventListener(this), 0);
				} else {
					window.setTimeout((function() { window.location = this.options.redirectUrl; }).bindAsEventListener(this), 0);
				}
			} else {
				this.lock = false;
				this.password.value = "";
				this.password.enable();
				this.username.enable();
				this.loginBtn.enable();
				if (this.cancelBtn)	
					this.cancelBtn.enable();
				this.errDiv.update(json.error);
				this.errDiv.setStyle({display: "block"});
			}
		} else {
			this.lock = false;
			this.password.value = "";
			this.password.enable();
			this.username.enable();
			this.loginBtn.enable();
			if (this.cancelBtn)	
				this.cancelBtn.enable();
			this.errDiv.update(json.error);
			this.errDiv.setStyle({display: "block"});
			this.username.focus();
		}
	},
	
	requestFailed: function(req) {
		this.lock = false;
		this.password.enable();
		this.username.enable();
		this.loginBtn.enable();
		if (this.cancelBtn)	
			this.cancelBtn.enable();
		this.errDiv.update(this.options.generalFailureMessage);
	}
});
//#REQUIRES FocusFirstInput

var MessageSend = Class.create(FocusFirstInput, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		var submit = this.el.down('input[type=submit]');
		this.safeObserve(submit, 'click', this.onSubmit.bindAsEventListener(this));
		
		// assume that we are online
		this.online = true;
	},
	
	onSubmit : function(ev) {
		var req = new Ajax.Request(this.options.loginStatusUrl, {
		  asynchronous: false,
			method: 'get',
			onSuccess: this.onLoginCheck.bind(this),
			parameters: {
				nocache: Math.random()
			}
		});
		
		if (!this.online) {
			ev.stop();
			//window.setTimeout(function(){ this.submit.enable(); }.bind(this), 0);
			alert(this.options.loginStatusWarning);
		}
	},
	
	onLoginCheck : function(req) {
		try {
			var json;
			try {
				json = req.responseText.evalJSON();
			} catch(e) {
				global.handleFailedAJAJRequest();
				return;
			}

			this.online = json.online;
		} catch(e) {
			window.alert(e.fileName + ":" + e.lineNumber + ": " + e.message);
			return;
		}
	}
	
});
//#REQUIRES FocusFirstInput

var StatusMessage = Class.create(FocusFirstInput, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.editLink = this.el.down('.editStatusLink');
		this.saveBtn = this.el.down('.saveStatusBtn');
		
		if (this.editLink) {
			this.safeObserve(this.editLink, 'click', this.onEditClick.bindAsEventListener(this));
		}
		if (this.saveBtn) {
			this.safeObserve(this.saveBtn, 'click', this.onSaveClick.bindAsEventListener(this));
			this.saveBtn.disable();
		}

		this.displayDiv = this.el.down('.statusMessageDisplay');
		this.editDiv = this.el.down('.statusMessageEdit');

		this.errorParagraph = this.el.down('.statusMessageErrorLine');

		this.currentMessage = this.el.down('.statusMessageContent');
		this.newMessageInput = this.el.down('.statusMessageInput');
		if(this.newMessageInput) {
			this.newMessageInput = this.newMessageInput.down('input');
			this.newMessageInput.disable();
		}

		this.progressImg = this.el.down('img.progress');
		if(this.progressImg) {
			this.el.down('.statusMessageLine').insert('&nbsp;');
		}
		
		if(this.options.expanded&&this.options.expanded=="True"){
			this.expand();
		}
	},
	
	onEditClick: function(ev) {
		ev.stop();
		this.expand();
	},
	
	expand: function(){
		this.displayDiv.hide();
		this.editDiv.show();
		this.saveBtn.enable();
		this.newMessageInput.enable();
	},

	onSaveClick: function(ev) {
		ev.stop();
		this.newMessageInput.disable();
		this.editDiv.hide();
		this.editLink.hide();
		this.currentMessage.hide();
		this.displayDiv.show();
		this.progressImg.show();

		var req = new Ajax.Request(this.options.editUrl, {
			method: 'post',
			onSuccess: this.requestSuccess.bind(this),
			onException: this.requestFailure.bind(this),
			onFailure: this.requestFailure.bind(this),
			parameters: {
				newMessage: this.newMessageInput.value
			}
		});
	},

	requestSuccess: function(req) {
		this.progressImg.hide();
		this.editLink.show();
		this.currentMessage.show();
		var json;
		try {
			json = req.responseText.evalJSON();
		} catch (e) {
			this.requestFailure(req);
			return;
		}
		if(json.success && json.newMessage &&  json.inputValue) {
			this.currentMessage.update(json.newMessage);
			this.newMessageInput.value = json.inputValue;
			this.errorParagraph.hide();
		} else {
			this.requestFailure(req);
			return;
		}
	},

	requestFailure: function(req) {
		this.progressImg.hide();
		this.editLink.show();
		this.currentMessage.show();
		this.errorParagraph.show();
	}
});
//#REQUIRES DOMAttached

var FriendslistCreateOnTheFly = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);
		this.link = this.el.down('.link');
		this.checkbox = this.el.down('.newFriendslistCheckbox');
		this.listingExtension = this.el.down('.pseudoListingExtension');
		this.content = this.el.down('.friendslistCreator');
		this.memberAction = this.el.down('.memberAction');
		this.safeObserve(this.link, 'click', this.onClick.bindAsEventListener(this));
		this.safeObserve(this.checkbox, 'click', this.onCheck.bindAsEventListener(this));
		
		FriendslistCreateOnTheFly.instance = this;
	},
	
	staticEnable : function(enable) {
		this.enableAll(enable);
		if(enable) {
			this.checkbox.enable();
		} else {
			this.checkbox.disable();
			this.checkbox.checked = false;
		}
	},
	
	onClick : function(e) {
		this.checkbox.checked = true;
		this.content.removeClassName('collapsed');
		this.listingExtension.removeClassName('collapsed');
		this.link.addClassName('collapsed');
		this.stopObserve(this.link, 'click');
		if(typeof(PostingVisibility) != 'undefined' && typeof(PostingVisibility.instance) != 'undefined') {
			PostingVisibility.instance.uncheckAllAndFriends();
		}
	},
	
	onCheck : function(e) {
		this.enableAll(this.checkbox.checked);
	},
	
	enableAll : function(enable) {
		if(enable) {
			this.enableCheckboxes(true);
			this.content.down('input[type^="text"]').enable();
			this.content.removeClassName('disabled');
		} else {
			this.enableCheckboxes(false);
			this.content.down('input[type^="text"]').disable();
			if(!this.content.hasClassName('disabled')) this.content.addClassName('disabled');
		}
	},
	
	enableCheckboxes : function(enable) {
		for(var i = 0; ; i++) {
			var memberCheckbox = this.memberAction.down('input', i);
			if(memberCheckbox == undefined) {
				break;
			} else {
				if(enable)
					memberCheckbox.enable();
				else
					memberCheckbox.disable();
			}
		}
	}
});

//#REQUIRES DOMAttached
//#REQUIRES ProgressIndicatingControl

var GoogleMap = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		if (typeof GBrowserIsCompatible != 'undefined') {
			if (!GBrowserIsCompatible()) {
				return;
			}
		} else {
			return;
		}
		
		this.url = this.options.url;
		this.defaultLatitude = this.options.defaultLatitude;
		this.defaultLongitude = this.options.defaultLongitude;
		this.defaultZoom = this.options.defaultZoom;
		
		if (this.options.latitude != undefined && this.options.longitude != undefined && this.options.zoom != undefined) {
			this.latitude = this.options.latitude;
			this.longitude = this.options.longitude;
			this.zoom = this.options.zoom;
		}
		
		// maximal zoom level at which markers are shown
		this.singleMarkerZoom = 1;
		// extra padding outside the current viewport
		this.borderPadding = 0.25;

		this.isLoading = false;
		
		var mapContainer = this.el.down('.mapContainer');
		var dimensions = mapContainer.getDimensions();
		mapContainer.setStyle({ width : dimensions.width + "px", 
														height: (dimensions.height > 0 ? dimensions.height : dimensions.width) + "px" });
		
		this.map = new GMap2(mapContainer);
		this.map.disableDragging();
		
		this.icons = Array();
		this.icons['Recommendation'] = this.customGIcon('recommendation');
		this.icons['Event'] = this.customGIcon('event');
		this.icons['Plaza'] = this.customGIcon('plaza');
		this.icons['Blog'] = this.customGIcon('blog');
		this.icons['MarketplaceOffered'] = this.customGIcon('marketplaceoffered');
		this.icons['MarketplaceWanted'] = this.customGIcon('marketplacewanted');
		this.icons['Photo'] = this.customGIcon('album');
		this.icons['Album'] = this.customGIcon('album');
		this.icons['Request'] = this.customGIcon('request');
		this.icons['Vendor'] = this.customGIcon('vendor');
		this.icons['VideoYoutube'] = this.customGIcon('videoyoutube');
		this.icons['VideoFfmpeg'] = this.customGIcon('videoffmpeg');
		
		this.mapControl = new GSmallMapControl();
		
		this.loadStatus();
		this.startLoading();
		
		this.loadData();
	
		this.loadDataDelay = 0;	
		GEvent.addListener(this.map, "dragend", this.onMoveEnd.bind(this));
		GEvent.addListener(this.map, "drag", this.onDrag.bind(this));

		this.registerUnloadAction(this.onUnload.bind(this));
	},
	
	onMoveEnd : function() {
		// Implements the load delay, to avoid numerous server calls based on map dragging or zoom in/out functions.
		this.loadDataDelay = setTimeout(this.delayedOnMoveEnd.bind(this), 2000);
	},
	delayedOnMoveEnd : function() {
		this.saveStatus();
		this.loadData();
	},

	onDrag : function() {
		// prevent loadData while "long dragging"
		clearTimeout(this.loadDataDelay);
	},
	
	startLoading : function() {
		if (this.isLoading) {
			return;
		}
		this.isLoading = true;

		this.map.disableDragging();
		this.map.removeControl(this.mapControl);
	
		this.showProgressIndicator(this.el, '.googleMap');
	},
	
	prepareUrl : function(url) {
		return url;
	},
	
	// request data to fill the map
	loadData : function() {
		if (this.url == '') {
			return;
		}
		
		var zoom = this.map.getZoom();
		if (zoom < this.singleMarkerZoom)
			return;
		var bounds = this.map.getBounds();
		var sw = bounds.getSouthWest();
		var ne = bounds.getNorthEast();
		var latPadding = (ne.lat()-sw.lat()) * this.borderPadding;
		var lngPadding = (ne.lng()-sw.lng()) * this.borderPadding;
		
		var url = this.url.replace('PLH_coords1', (sw.lat()-latPadding)+":"+(sw.lng()-lngPadding)).
			replace('PLH_coords2', (ne.lat()+latPadding)+":"+(ne.lng()+lngPadding));
		
		new Ajax.Request(this.prepareUrl(url), {
			method: 'get',
			onSuccess: this.onJSONLoad.bind(this),
			onFailure: function(){ ; }
		});
	},
	
	onJSONLoad: function(req) {
		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}
		
		json = json.locations;
		var markers = [];
		for (var i = 0; i < json.length; ++i) {
			var coords = json[i].coords;
			var objects = json[i].objects;
			var html = '<ul class="googleMapBubble" style="height:' + (objects.length * 60) + 'px; width: 250px">'; /* evil hack, but GoogleMaps doesn't calculate */
			var tooltip = "";
			for (var p = 0; p < objects.length; ++p) {
				html += objects[p].html;
				tooltip += objects[p].name + ", ";
			}
			html += "</ul>";
			tooltip = tooltip.substring(0, tooltip.length-2);
			var marker = this.createPlazaMarker(new GLatLng(coords[0], coords[1]), json[i].type, tooltip, html);
			if (marker != null) {
				markers.push(marker);
			}
		}
		
		this.stopLoading();
		
		this.mgr = new GMarkerManager(this.map);
		this.mgr.addMarkers(markers, this.singleMarkerZoom);
		this.mgr.refresh();
	},
	
	customGIcon : function(type) {
		var icon = new GIcon();
		icon.image = "/img/bubble_"+type+".png";
		var dim = 24;
		if (type == 'plaza')
			dim = 32;
		icon.iconSize = new GSize(dim, dim);
		icon.iconAnchor = new GPoint(dim, dim);
		icon.infoWindowAnchor = new GPoint(dim, dim);
		return icon;
	},
	
	createPlazaMarker : function(position, type, tooltip, text) {
		var icon = this.icons[type];
		if (icon == null) {
			alert("no icon for type "+type);
		}
		var marker = new GMarker(position, {icon:icon, title:tooltip});
		GEvent.addListener(marker, "click", function() {
			marker.openInfoWindowHtml(text, {maxWidth: 300} );
		});
		return marker;
	},
	
	stopLoading : function(){
		if (this.isLoading){
			this.isLoading = false;
			this.map.enableDragging();
			this.map.addControl(this.mapControl);
			this.hideProgressIndicator();
		}
	},
	
	// restores position from cookies
	loadStatus : function() {
		var lat = readCookie("map2Lat");
		var lng = readCookie("map2Lng");
		var zoom = readCookie("map2Zoom");

		if (this.latitude != undefined && this.longitude != undefined && this.zoom != undefined)
			this.map.setCenter(new GLatLng(this.latitude, this.longitude), this.zoom);
		else if (lat && lng && zoom)
			this.map.setCenter(new GLatLng(lat, lng), parseInt(zoom));
		else
			this.map.setCenter(new GLatLng(this.defaultLatitude, this.defaultLongitude), this.defaultZoom);
		this.saveStatus();
	},
	
	saveStatus : function() {
		var center = this.map.getCenter();
		var zoom = this.map.getZoom();
		if (center != null) {
			createCookie("map2Lat", center.lat());
			createCookie("map2Lng", center.lng());
		}
		if (zoom != null) {
			createCookie("map2Zoom", zoom);
		}
	},
	
	onUnload: function(ev) {
		if (typeof GUnload != 'undefined')
			GUnload();
	}
});
GoogleMap.addMethods(ProgressIndicatingControl);
//#REQUIRES UrlTemplate
//#REQUIRES GoogleMap

var GoogleMapPosting = Class.create(GoogleMap, {
	initialize: function($super, el, options) {
		// this must be set before super constructor is called
		// because super-constructor calls this.prepareUrl indirectly
		$super(el, Object.extend({ searchPhrases: [], postingTypes: [], tags: [], appendUpcEve: 'NULL' }, options));
		
		this.safeObserve(document, 'list:criteriaChanged', this.updateCriteria.bind(this));
	},
	
	updateCriteria: function(ev) {
		var options = ev.memo.options;
		var changed = false;
		var relevantCriteria = ['searchPhrases', 'postingTypes', 'tags', 'appendUpcEve'];
		relevantCriteria.each(function(crit) {
			if (options[crit] != undefined && this.options[crit] != options[crit]) {
				this.options[crit] = options[crit];
				changed = true;
			}
		}.bind(this));
		
		var coordsMean = options.coordsMean;
		if (coordsMean) {
			this.map.setCenter(new GLatLng(coordsMean[0], coordsMean[1]), this.map.getZoom());
		} else {
			this.loadStatus();
		}
		
		if (changed) {
			this.startLoading();
			this.map.clearOverlays();
			this.loadData();
		}
	},
	
	prepareUrl: function($super, url) {
		return new UrlTemplate(url).
			r('PLH_CType', this.options.postingTypes.join(',')).
			r('PLH_Ctag', this.options.tags.join(',')).
			r('PLH_Csearch', this.options.searchPhrases.join(',')).
			r('PLH_upev_', this.options.appendUpcEve).url;
	}
});
//#REQUIRES DOMAttached

var InputDisableRadioButtonList = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.items = this.el.select('.radioButtonListItem');
		this.rbs = new Array();
		this.items.each(function(el, i) {
			var rb = el.down('input.radioButton');
			this.safeObserve(rb, 'change', this.onChange.bindAsEventListener(this));
			// IE fires change event only on blur, so we'll also observe click
			this.safeObserve(rb, 'click', this.onChange.bindAsEventListener(this));
			this.rbs[i] = rb;
			this.toggleEnabling(rb);
		}, this);
	},

	onChange: function(ev) {
		this.rbs.each(function(el) {
			el.checked = el == this;
		}, ev.target);
		this.rbs.each(function(el) {
			this.toggleEnabling(el);
		}, this);
	},

	toggleEnabling: function(source) {
		if(source == null)
			return;
		Element.siblings(source).each(function(el) {
			Element.select(el, 'input').each(function(el) {
				el.disabled = !this.checked;
			}, this);
		}, source);
	}
});
//#REQUIRES DOMAttached

var Invitation = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.nextLink = this.el.down('.nextStep');
		this.addLink = this.el.down('.addName');
		this.namesForm = this.el.down('.namesForm');
		this.noNamesError = this.el.down('.error');
		this.nameslist = this.el.down('.allNamesToInvite');
		this.invitationForm = this.el.down('.invitationForm');
		this.invitationFormAnyError = this.invitationForm.down('.error');
		this.heading = this.invitationForm.down('h3');
		this.currentName = undefined;
		this.inviteLink = this.el.down('.inviteSinglePerson');
		this.stateMessageForm = this.el.down('.invitationStateMessageForm');
		this.nextInvitationName = this.stateMessageForm.down('.nextNameToInvite');
		this.nextInvitationLink = this.stateMessageForm.down('.nextInvitation');
		this.moreInvitationsLink = this.stateMessageForm.down('.moreInvitations');
		
		this.safeObserve(this.nextLink, 'click', this.onNextClick.bindAsEventListener(this));
		this.safeObserve(this.addLink, 'click', this.onAddClick.bindAsEventListener(this));
		this.safeObserve(this.inviteLink, 'click', this.onInviteClick.bindAsEventListener(this));
		this.safeObserve(this.nextInvitationLink, 'click', this.onNextInvitationClick.bindAsEventListener(this));
		
		this.namesArray = new Array();
	},
	
	/* ClickHandler */
	
	onNextClick : function(ev) {
		this.fillNamesArray();
		this.retrieveNextCurrentName();
		if(this.currentName != undefined) {
			this.putNameInHeading();
			this.goToSecondStep();
		} else {
			this.displayNoNamesError();
		}
	},
	
	onAddClick : function(ev) {
		this.addNameRow();
	},
	
	onInviteClick : function(ev) {
		this.sendInvitation();
	},
	
	onNextInvitationClick : function(ev) {
		this.tryToAdaptMessageForNextName();
		this.retrieveNextCurrentName();
		this.putNameInHeading();
		this.cleanUpInputMethod();
		this.goToSecondStep();
	},
	
	
	/* Functionalities */
	
	displayNoNamesError : function() {
		this.noNamesError.removeClassName('collapsed');
	},
	
	sendInvitation : function() {
		var selectedMethod = this.invitationForm.down('.selected');
	
		var name = this.currentName;
		var message = selectedMethod.down('textarea').value;
		var contact = selectedMethod.down('.invitationMethodInput').down('input[type="text"]').value;
		var method = selectedMethod.down('.invitationMethodValue').value;
		
		var req = new Ajax.Request(this.options.inviteURL, {
			method: 'post',
			onSuccess: this.requestSuccess.bind(this),
			onException: this.requestFailure.bind(this),
			onFailure: this.requestFailure.bind(this),
			parameters: {
				name: name,
				message: message,
				contact: contact,
				method: method
			}
		});
	},
	
	addNameRow : function() {
		var newNameField = this.nameslist.down('.singleNameToInvite').cloneNode(true);
		newNameField.down('.textbox').down('input[type="text"]').value = '';
		this.nameslist.appendChild(newNameField);
	},
	
	goToSecondStep : function() {
		this.namesForm.addClassName('collapsed');
		this.stateMessageForm.addClassName('collapsed');
		this.invitationForm.removeClassName('collapsed');
	},
	
	goToFinalStep : function() {
		this.invitationForm.addClassName('collapsed');
		this.stateMessageForm.removeClassName('collapsed');
	},
	
	fillNamesArray : function() {
		this.nameslist.select('.singleNameToInvite').each(function(el) {
			var name = el.down('.textbox').down('input[type="text"]').value.strip();
			if(name.length > 0)
				this.namesArray.push(name);
		}.bind(this) );
		this.namesArray.reverse();
	},
	
	putNameInHeading : function() {
		this.heading.update(this.currentName);
	},
	
	putNextNameInNextInvitationLinkOrShowMoreInvitationsLink : function() {
		var nextName = this.namesArray.last();
		if(nextName != undefined) {
			this.nextInvitationName.update(nextName);
		} else {
			this.nextInvitationLink.addClassName('collapsed');
			this.moreInvitationsLink.removeClassName('collapsed');
		}	
	},
	
	retrieveNextCurrentName : function() {
		this.currentName = this.namesArray.pop();
	},
	
	cleanUpInputMethod : function() {
		this.invitationForm.select('.invitationMethodInput').each(function(item) {
			item.down('input[type="text"]').value = '';
		});
	},
	
	tryToAdaptMessageForNextName : function() {
		var message = this.invitationForm.down('.selected').down('textarea').value;
		message =	message.replace(new RegExp('\\b'+this.currentName+'\\b', "gi"), this.namesArray.last());
		this.invitationForm.down('.selected').down('textarea').value = message;
	},
	
	putSuccessMessageInPlace : function(message) {
		this.stateMessageForm.down('.successMessage').update(message);
	},
	
	showInvitationFormError : function(errorMsg) {
		this.invitationFormAnyError.down('p').update(errorMsg);
		this.invitationFormAnyError.removeClassName('collapsed');
	},
	
	
	/* Ajax Handler */
	
	requestSuccess : function(req) {
		var json;
		try {
			json = req.responseText.evalJSON();
		} catch (e) {
			this.requestFailure(req);
			return;
		}
		if(json.message) {
			if(json.success) {
				this.putNextNameInNextInvitationLinkOrShowMoreInvitationsLink();
				this.putSuccessMessageInPlace(json.message);
				this.goToFinalStep();
			} else {
				this.showInvitationFormError(json.message);
			}
		} else {
			this.requestFailure(req);
			return;
		}
	},
	
	requestFailure : function(req) {
		this.showInvitationFormError(this.options.genericError);
	}	
});//#REQUIRES DOMAttached

var InvitationByEMail = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		var sendMail = this.el.down('span.sendMail');
		this.safeObserve(sendMail, 'click', this.onSendMailClick.bindAsEventListener(this));
		var cancel = this.el.down('span.cancel');
		this.safeObserve(cancel, 'click', this.onCancelClick.bindAsEventListener(this));
		this.step = this.el.down('span.step');
		this.safeObserve(this.step, 'click', this.onToggleStepClick.bindAsEventListener(this));
		
		this.invitees = this.el.down('div.invitees');
		this.message = this.el.down('div.message');
	},
	
	
	/* Click Handler */
	
	onSendMailClick : function(ev) {
		this.sendMail();
	},
	
	onCancelClick : function(ev) {
		this.closeOverlay();
	},
	
	onToggleStepClick : function(ev) {
		var collapsed = this.step.down('.collapsed');
		if(collapsed.hasClassName('invitees')) {
			this.showMessage();
		} else {
			this.showInvitees();
		}
	},
	
	
	/* Functionalities */
	
	showMessage : function() {
		this.step.down('span.invitationMessage').addClassName('collapsed');
		this.step.down('span.invitees').removeClassName('collapsed');
		this.invitees.addClassName('collapsed');
		this.message.removeClassName('collapsed');
	},
	
	showInvitees : function() {
		this.step.down('span.invitees').addClassName('collapsed');
		this.step.down('span.invitationMessage').removeClassName('collapsed');
		this.message.addClassName('collapsed');
		this.invitees.removeClassName('collapsed');
	},
	
	closeOverlay : function() {
		Overlay.CloseCurrent();
	},
	
	sendMail : function() {
		var context = new Object();
		context.addresses = new Array();
		this.el.select('.emailAddress').each(function(item) {
			var address = item.down('input').value.strip();
			if(address.length > 0) {
				this.addresses.push(address);
			}
		}.bind(context));
		
		if(context.addresses.length > 0) {
			var messageText = this.message.down('textarea').value;
			var req = new Ajax.Request(this.options.sendURL, {
				method: 'post',
				onSuccess: this.requestSuccess.bind(this),
				onException: this.requestFailure.bind(this),
				onFailure: this.requestFailure.bind(this),
				parameters: {
					addresses: context.addresses,
					message: messageText
				}
			});
		} else {
			AjajSessionMessage.clear(this.el);
			AjajSessionMessage.setType(this.el, 'error');
			AjajSessionMessage.add(this.el, this.options.noEmails);
		}
	},
	
	markBadAddressesAndRemoveRemaining : function(badAddresses) {
		var context = new Object();
		context.badAddresses = badAddresses;
		this.el.select('.emailAddress').each(function(item){
			var input = item.down('input');
			if(this.badAddresses.indexOf(input.value.strip()) != -1) {
				input.addClassName('incorrect');
			} else {
				input.value = '';
				input.removeClassName('incorrect');
			}
		}.bind(context));
	},
	
	
	/* AJAX Request Handler */
	
	requestSuccess : function(req) {
		var json;
		try {
			json = req.responseText.evalJSON();
		} catch (e) {
			this.requestFailure(req);
			return;
		}
		if(json.message) {
			AjajSessionMessage.clear(this.el);
			AjajSessionMessage.setType(this.el, json.type);
			AjajSessionMessage.add(this.el, json.message);
			var badAddresses = json.badAddresses.split(',');
			this.markBadAddressesAndRemoveRemaining(badAddresses);
		} else {
			this.requestFailure(req);
		}
		this.el.up('div.overlay').position();
	},
	
	requestFailure : function(req) {
		AjajSessionMessage.showGenericError(this.el);
	}
});



var InvitationByPrint = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		var print = this.el.down('.print');
		if(print) {
			this.safeObserve(print, 'click', this.onPrintClick.bindAsEventListener(this));
		}
		var cancel = this.el.down('.cancel');
		if(cancel) {
			this.safeObserve(cancel, 'click', this.onCancelClick.bindAsEventListener(this));
		}
		this.dropdownList = this.el.down('.countDDL');
	},
	
	/* Click Handler */
	
	onPrintClick : function(ev) {
		this.adaptLayoutForPrint();
		window.print();
		this.closeOverlay();
	},
	
	onCancelClick : function(ev) {
		this.closeOverlay();
	},
	
	
	closeOverlay : function() {
		Overlay.CloseCurrent();
	},
	
	adaptLayoutForPrint : function() {
		var count = this.dropdownList.value;
		count = count > 6 ? 6 : (count < 1 ? 1 : count);
	}
});//#REQUIRES DOMAttached

var InvitationMethod = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);
		
		if(InvitationMethod.CurrentMethod == undefined) {
			InvitationMethod.CurrentMethod = this.el.up(0).down('.selected', 0);
			if(InvitationMethod.CurrentMethod == undefined) {
				this.changeSelectedMethod(this.el);
			}
		}

		this.safeObserve(this.el, 'click', this.onInvitationMethodClick.bindAsEventListener(this));
	},
	
	onInvitationMethodClick : function(ev) {
		this.changeSelectedMethod(ev.currentTarget);
	},
	
	changeSelectedMethod : function(element) {	
		if(element == undefined || element == InvitationMethod.CurrentMethod)
			return;
		element.addClassName('selected');
		if(InvitationMethod.CurrentMethod != undefined) {
			InvitationMethod.CurrentMethod.removeClassName('selected');
		}
		InvitationMethod.CurrentMethod = element;
	}
});//#REQUIRES ProgressIndicatingControl
//#REQUIRES DOMAttached

var ListBase = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({
			currentPage: 0,
			lastPage: false,
			pagingEffect: 'none',
			fixDimensions: true,
			reversePagingEffect: false,
			noProgressIndicator: false
		}, options));

		this.listEl = this.el.down('.fxListWrapper');		
		
		if(this.listEl.down().down().childElements().length == 0) {
			//YAL: All lists are initialized with a base height to make them look better during loading
			this.listEl.style.height = "160px";
				
			// The list has not been rendered and needs to be lazy-loaded
			this.loadPage(this.options.currentPage);
		}
		if (this.listEl == undefined) {
			this.listEl = this.el.down('ul');
		}
		this.prevBtn = this.el.select('.prevBtn');
		this.nextBtn = this.el.select('.nextBtn');
		
		if (options.buttonsMustBeChildren == true) {
			var children = this.el.childElements();
			
			for (var i = 0; i < children.length; i++) {
				if (children[i].hasClassName('prevBtn'))
					this.prevBtn = new Array(children[i]);
					
				if (children[i].hasClassName('nextBtn'))
					this.nextBtn = new Array(children[i]);
			}
		}
			
		this.setBtnVisibility();
		this.prevBtn.each(function(e) {
			this.safeObserve(e, 'click', this.onPrevBtn.bindAsEventListener(this));
			this.safeObserve(e, 'doubleclick', this.onPrevBtn.bindAsEventListener(this));
		}.bind(this));
		this.nextBtn.each(function(e) {
			this.safeObserve(e, 'click', this.onNextBtn.bindAsEventListener(this));
			this.safeObserve(e, 'doubleclick', this.onNextBtn.bindAsEventListener(this));
		}.bind(this));
		
		this.disablePaging = false;
		this.dimensionsFixed = false;

		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.listEl = null;
		this.prevBtn = null;
		this.nextBtn = null;
		this.newList = null;
	},
	
	setBtnVisibility: function() {
		this.prevBtn.each(function(e) {
			e.setStyle({
				visibility: (this.options.currentPage == 0) ? 'hidden' : 'visible'
			});
		}.bind(this));
		this.nextBtn.each(function(e) {
			e.setStyle({
				visibility: this.options.lastPage ? 'hidden' :	'visible'
			});
		}.bind(this));
	},
	
	onPrevBtn: function(ev) {
		if(ev) {
			Event.stop(ev);
		}
	  if (this.disablePaging) return;
	  if (!this.dimensionsFixed && this.options.fixDimensions)
			this.fixDimensions();
		if (this.options.currentPage > 0) {
			this.disablePaging = true;
			this.loadPage(this.options.currentPage - 1);
		}
	},
	
	onNextBtn: function(ev) {
		if(ev) {
			Event.stop(ev);
		}
	  if (this.disablePaging) return;
	  if (!this.dimensionsFixed && this.options.fixDimensions)
			this.fixDimensions();
	  if (!this.options.lastPage) {
			this.disablePaging = true;
			this.loadPage(this.options.currentPage + 1);
	  }
	},
	
	fixDimensions: function() {
		/*if (global.isIE) {
			var elDims = this.el.getDimensions();
	
			this.el.setStyle({
				height: elDims.height + 'px',
				width: elDims.width + 'px'
			});

			var newDims = this.el.getDimensions();
			var diffX = newDims.width - elDims.width;
			var diffY = newDims.height - elDims.height;
			if (diffX != 0 || diffY != 0) {
				this.el.setStyle({
					height: (elDims.height - diffY) + 'px',
					width: (elDims.width - diffX) + 'px'
				});
			}
		} else {
			this.el.setStyle({
				height: this.el.getStyle('height'),
				width: this.el.getStyle('width')
			});
		}*/
	},
	
	resetDimensions: function() {
	    this.el.setStyle({height: "", width: ""});
	    this.listEl.setStyle({height: "", width: ""});
	    this.dimensionsFixed = false;
	},
	
	// page is an HTML snippet
	// oldPageNum can be null but some effects might not work then.
	displayPage: function(page, oldPageNum) {
		/*if (this.disablePaging) {
			window.setTimeout(function(){this.displayPage(page, oldPageNum);}.bind(this), 50);
			return;
		}
		this.disablePaging = true;*/
		this.newList = new Element('div');
		this.newList.update(page);
		this.newList = this.newList.down();

		//this.resetDimensions();
	  	
		if (!global.isIE6 &&
				(this.options.pagingEffect == 'horizSlide' ||
				this.options.pagingEffect == 'vertSlide' ||
				this.options.pagingEffect == 'fade' ||
				this.options.currentPage == oldPageNum)) {
		
			this.listEl.absolutize();
			this.listEl.insert({after: this.newList});
		  this.newList.setStyle({visibility: 'hidden'});
			
			if (this.options.currentPage != oldPageNum && (this.options.pagingEffect == 'horizSlide' || this.options.pagingEffect == 'vertSlide')) {
				var edge1;
				var edge2;
				if (this.options.pagingEffect == 'horizSlide') {
					edge1 = (oldPageNum < this.options.currentPage ? 'left' : 'right');
					edge2 = (oldPageNum < this.options.currentPage ? 'right' : 'left');
				} else {
					edge1 = (oldPageNum < this.options.currentPage ? 'top' : 'bottom');
					edge2 = (oldPageNum < this.options.currentPage ? 'bottom' : 'top');
				}
				if (this.options.reversePagingEffect) {
					var tmp = edge1;
					edge1 = edge2;
					edge2 = tmp;
				}
				var effDuration = 1.0;
				new Effect.Parallel([
					new Effect.Slide(this.listEl, { out:true, edge:edge1, duration: effDuration, reserveSpace: true }),
					new Effect.Slide(this.newList, { out:false, edge:edge2, duration: effDuration, reserveSpace: true })
				], {
					duration: effDuration,
					afterFinish: (function() {
						this.removeElement(this.listEl);
						this.listEl = this.newList;
						this.newList = undefined;
						this.reenablePaging();
						
						//YAL: Correct problem with list resizing
						this.listEl.style.height = "";
						this.listEl.style.width = "";

						if (global.isIE7) {
							this.listEl.style.display = "none";
							setTimeout(this.renderPageIE7.bind(this), 1);
						}
					}).bind(this)
				});
			} else {
				this.newList.setOpacity(0.0);
				this.newList.setStyle({visibility:'visible'});
				new Effect.Parallel([
					new Effect.Fade(this.listEl, { from:1.0,to:0.0,duration:.5 }),
					new Effect.Fade(this.newList, { from:0.0,to:1.0,duration:.5 })
				], {
					duration: .5,
					afterFinish: (function() {
						this.removeElement(this.listEl);
						this.listEl = this.newList;
						this.newList = undefined;
						this.reenablePaging();
						
						//YAL: Correct problem with list resizing
						this.listEl.style.height = "";
						this.listEl.style.width = "";

						if (global.isIE7) {
							this.listEl.style.display = "none";
							setTimeout(this.renderPageIE7.bind(this), 1);
						}
					}).bind(this)
				});
			}
		} else {
			this.listEl.insert({after: this.newList});
			this.removeElement(this.listEl);
			this.listEl = this.newList;
			this.reenablePaging();
			
			//YAL: Correct problem with list resizing
			this.listEl.style.height = "";
			this.listEl.style.width = "";

			if (global.isIE7) {
				this.listEl.style.display = "none";
				setTimeout(this.renderPageIE7.bind(this), 1);
			}					
		}
		
	  this.onLoadPage(this.newList);
	  if (global.isIE6)
			PNGCoach();
		
		if (this.options.pagingEffect == "returnToTop")
			window.scrollTo(0, 0);
	},
	
	standardJSONRequest: function(url) {
		if ((this.blockRequests != undefined) || global.stopRequests || this.requestRunning)
			return;
		this.requestRunning = true;
		var req = new Ajax.Request(url, {
			method: 'get',
			onSuccess: this.standardJSONSuccess.bind(this),
			onException: this.reenablePaging.bind(this),
			onFailure: this.JSONException.bind(this),
			parameters: {
				nocache: Math.random()
			}
		});
	},
	
	standardJSONSuccess: function(req) {
		this.requestRunning = false;
	  try {

			var json;
			try {
				json = req.responseText.evalJSON();
			} catch(e) {
				global.handleFailedAJAJRequest();
				return;
			}

			if (json.html == undefined || json.html.length == 0)
				return;

			var oldPage = this.options.currentPage;
			var html = json.html;
			json.html = undefined;
			this.options = Object.extend(this.options, json);
			this.setBtnVisibility();
			this.displayPage(html, oldPage);

		} catch(e) {
			window.alert(e.fileName + ":" + e.lineNumber + ": " + e.message);
			return;
		}
	},
	
	reenablePaging: function(req) {
		this.disablePaging = false;
	},
	
	JSONException: function(req, e) {
		this.requestRunning = false;
		this.disablePaging = false;
		this.blockRequests = true;
		window.alert(e.fileName + ":" + e.lineNumber + ": " + e.message);
	},

	refresh: function() {
		this.disablePaging = true;
		this.loadPage(this.options.currentPage);
	},

	// Overriding function should call displayPage(...) to display the page once it's loaded.
	// Overriding function should set lastPage.
	// Overriding function should set currentPage.
	// Instead of all of the above, the overriding function can let standardJSONRequest take care of everything.
	loadPage: function(page) {
	    ListBase.startedLoadingLists = true;
		ListBase.nrRunningRequests++;
		if (!this.options.noProgressIndicator) this.showProgressIndicator();
	},
	
	onLoadPage: function(pageEl) {
		if (!this.options.noProgressIndicator) this.hideProgressIndicator();
		ListBase.nrRunningRequests--;
		this.el.fire('list:criteriaChanged', { options: this.options });
		setTimeout(this.fixDimensions.bind(this),10);
	},
	
	renderPageIE7 : function() {
		this.listEl.style.display = "block";
	}
});
ListBase.nrRunningRequests = 0;
ListBase.addMethods(ProgressIndicatingControl);
//#REQUIRES ListBase

var EventCalendarList = Class.create(ListBase, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({pagingEffect: (global.isIE ? 'none' : 'fade')}, options));
	},

	loadPage: function($super, page) {
		$super(page);
		this.standardJSONRequest(this.options.url.replace('PLH_pagenum', page));
	}
});

//#REQUIRES UrlTemplate
//#REQUIRES ListBase
//#REQUIRES SearchBox
//#REQUIRES SortableBox
//#REQUIRES FilterableBox

var MemberShowcase = Class.create(ListBase, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({ searchPhrases: [], pagingEffect: (global.isIE ? 'none' : 'horizSlide') }, options));
		this.el.attachedObj = this;

		this.initializeSearchBox();
		
		this.detailPanes = new Array();
		
		this.initializeSortableBox('a');
		
		this.initializeFilterableBox('a');
			
		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.el.attachedObj = null;
		this.activeDetailsPane = null;
		this.sorterBtnDiv = null;
		this.filterBtnDiv = null;
		this.detailPanes.clear();
	},
	
	loadPage: function($super, page) {
		$super(page);
		this.standardJSONRequest(
			new UrlTemplate(this.options.url).
				r('PLH_pagenum', page).
				r('PLH_Csearch', this.options.searchPhrases.join(',')).
				r('PLH_MemberSortingType', this.options.sortOrder).
				r('PLH_MemberFilterType', this.options.memberFilter).url
		);
	},
	
	onLoadPage: function($super, pageEl) {
		$super(pageEl);
		if (this.searchBoxInput != undefined)
			this.searchBoxInput.value = this.options.searchPhrases.join(" ");
		this.purgeDetailPanes();
	},
	
	registerDetailPane: function(pane) {
		this.detailPanes.push(pane);
	},
	
	purgeDetailPanes: function() {
		this.detailPanes.each((function(el) {
			this.removeElement(el);
		}).bind(this));
		this.detailPanes.clear();
	}
});
MemberShowcase.addMethods(SearchBox);
MemberShowcase.addMethods(SortableBox);
MemberShowcase.addMethods(FilterableBox);
//#REQUIRES UrlTemplate
//#REQUIRES ListBase
//#REQUIRES SearchBox
//#REQUIRES SortableBox

var PlazaList = Class.create(ListBase, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({pagingEffect: 'vertSlide', tags: [], searchPhrases: []}, options));
		
		this.initializeSearchBox();
		
		this.initializeSortableBox('a');
		
		this.sorterControl = this.el.down('.sorterBtns');
		
		global.registerTagSearchableList(this);
	},

	loadPage: function($super, page) {
		$super(page);
		var tagCloud = global.findTagCloud();
		if (tagCloud != undefined) {
			tagCloud.preUpdate();
		}
		this.standardJSONRequest(
			new UrlTemplate(this.options.url).
				r('PLH_pagenum', page).
				r('PLH_Csearch', this.options.searchPhrases.join(',')).
				r('PLH_Ctag', this.options.tags.join(',')).
				r('PLH_PlazaListSorting', this.options.sortOrder).url
		);
	},
		
	onLoadPage: function($super, pageEl) {
		$super(pageEl);
		if(this.options.sorters != undefined && this.sorterControl != undefined) {
			this.sorterControl.update(this.options.sorters);
			this.initializeSortableBox('a');
		}
		if (this.options.tagCloud != undefined) {
			var tagCloud = global.findTagCloud();
			if (tagCloud != undefined) {
				tagCloud.update(this.options.tagCloud);
			}
		}
	},
	
	refresh: function() {
		this.loadPage(0);
		this.el.fire('list:criteriaChanged', {options: this.options});
	},

	addTag: function(tag) {
		this.options.tags.push(tag);
		this.refresh();
	},
    
	removeTag: function(tag) {
		this.options.tags = this.options.tags.without(tag);
		this.refresh();
	}
});
PlazaList.addMethods(SearchBox);
PlazaList.addMethods(SortableBox);
//#REQUIRES UrlTemplate
//#REQUIRES ListBase
//#REQUIRES SearchBox
//#REQUIRES SortableBox

var PostingList = Class.create(ListBase, {
	
	initialize: function($super, el, options) {
		$super(el, Object.extend({pagingEffect: 'returnToTop', searchPhrases: [], postingTypes: [], appendUpcEve: 'NULL',
		appendUpcEveOnFilter: 'NULL', appendUpcEveNoFilter: 'NULL', languages: [], tags: [], fixDimensions: false, textFilters: (global.portal != "miafiesta") }, options));
		
		this.el.attachedObj = this;
		
		global.registerTagSearchableList(this);

		this.initializeSearchBox();
		
		this.filterBtnDiv = this.el.down('.filterBtns');		
		if  (this.filterBtnDiv != undefined) {
			this.setupFilterBtns();
		}
		
		this.initializeSortableBox('a');
		
		this.mapLink = this.el.down('.mapLink');
		
		if (this.mapLink != undefined) {
			if (typeof GMap2 == 'function') {
				// if google JS is already included, we assume that a map is shown on
				// the page so no map link is neccessary
				this.mapLink.hide();
			} else {
				this.setupMapLink();
			}
		}
	},
	
	setupMapLink: function() {
		this.safeObserve(this.mapLink, 'click', this.onMapClick.bindAsEventListener(this));
		this.map = this.el.down('.map');
	},
	
	onMapClick: function(ev) {
		if (typeof GMap2 == 'function') {
			this.loadMap();
		} else {
			postingListWithMap = this;
			var script = document.createElement('script');
			// include google map JS with callback
			script.setAttribute('src', this.options.mapJSInclude + '&async=2&callback=gmapLoadCallback');
			script.setAttribute('type', 'text/javascript');
	    this.el.appendChild(script);
		}
	},
	
	loadMap: function() {
		if (global.stopRequests || this.requestRunning)
			return;
		var url = new UrlTemplate(this.options.mapURL).
			r('PLH_Csearch', this.options.searchPhrases.join(',')).
			r('PLH_Ctag', this.options.tags.join(',')).
			r('PLH_Clang', this.options.languages.length == 0 ? 'NULL' : this.options.languages.join(',')).
			r('PLH_CType', this.options.postingTypes.join(',')).
			r('PLH_upev', this.options.appendUpcEve).
			r('PLH_PostingListSorting', this.options.sortOrder).url;
		if (!this.map.loader)
			this.map.loader = new PostingListItemDetailsLoader(url);
		this.map.loader.show();
	},
		
	setupFilterBtns: function(opacityOnly) {
		if (this.options.textFilters) {
			for (var btn = this.filterBtnDiv.down('a'); btn != undefined; btn = btn.next('a')) {
				if (this.options.postingTypes.indexOf(this.safelyExtractClass(btn).split('-')[0]) != -1)
					btn.addClassName('selected');
				else
					btn.removeClassName('selected');
					
				this.safeObserve(btn, 'click', this.onFilterBtnClick.bindAsEventListener(this));
				this.safeObserve(btn, 'mouseover', this.onFilterBtnOver.bindAsEventListener(this));
				this.safeObserve(btn, 'mouseout', this.onFilterBtnOut.bindAsEventListener(this));
			}
		} else {
			for (var btn = this.filterBtnDiv.down('img'); btn != undefined; btn = btn.next('img')) {
				if (this.options.postingTypes.indexOf(this.safelyExtractClass(btn).split('-')[0]) != -1) {
					btn.setOpacity(1);
				} else {
					btn.setOpacity(.3);
				}
				if (!opacityOnly) {
					this.safeObserve(btn, 'click', this.onFilterBtnClick.bindAsEventListener(this));
					this.safeObserve(btn, 'mouseover', this.onFilterBtnOver.bindAsEventListener(this));
					this.safeObserve(btn, 'mouseout', this.onFilterBtnOut.bindAsEventListener(this));
				}
			}
			this.filterTooltip = this.filterBtnDiv.down('.tooltip');
		}
	},
	
	safelyExtractClass: function(btn) {
		return btn.readAttribute('class').replace(new RegExp('\\s*png\\d*\\s*'), '');
	},
	
	onFilterBtnClick: function(ev) {
		ev.stop();
		if (this.requestRunning || this.disablePaging)
			return;
			
		if (this.options.textFilters)
			var btn = ev.findElement('a');
		else
			var btn = ev.findElement('img');
			
		var clazz = this.safelyExtractClass(btn).replace(/\s*selected\s*/, '');	
		if (this.options.postingTypes.indexOf(clazz.split('-')[0]) != -1) {
			this.options.postingTypes = [];
			this.options.appendUpcEve = this.options.appendUpcEveNoFilter;
		}	else {
			this.options.postingTypes = clazz.split('-');
			this.options.appendUpcEve = this.options.appendUpcEveOnFilter;
		}
		
		this.setupFilterBtns(true);		
		this.options.currentPage = 0;
		this.refresh();
	},
	
	onFilterBtnOver: function(ev) {
		if (this.options.textFilters) {
			var btn = ev.findElement('a');
			if (!btn.hover) {
				btn.hover = true;
				btn.addClassName('selected');
			}
		} else {
			var btn = ev.findElement('img');
			if (!btn.hover) {
				btn.hover = true;
				btn.setOpacity(1);
				this.filterTooltip.update(btn.readAttribute('title'));
			}
		}
	},
	
	onFilterBtnOut: function(ev) {
		if (this.options.textFilters) {
			var btn = ev.findElement('a');
			btn.hover = false;
			if (this.options.postingTypes.indexOf(btn.readAttribute('class').replace(/\s*selected\s*/, '').split('-')[0]) != -1)
				btn.addClassName('selected');
			else
				btn.removeClassName('selected');		
		} else {
			var btn = ev.findElement('img');
			btn.hover = false;
			this.setupFilterBtns(true);
		}
	},
	
	addTag: function(tag) {
		this.options.tags.push(tag);
		this.refresh();
	},
    
	removeTag: function(tag) {
		this.options.tags = this.options.tags.without(tag);
		this.refresh();
	},
	
	loadPage: function($super, page) {
		$super(page);
		// delay loading because IE6 seems to have some problems with rendering
		// the progress indicator (which is called in $super)
		window.setTimeout(function() {
			var tagCloud = global.findTagCloud();
			if (tagCloud != undefined) {
				tagCloud.preUpdate();
			}
			this.standardJSONRequest(
				new UrlTemplate(this.options.url).
					r('PLH_pagenum', page).
					r('PLH_Csearch', this.options.searchPhrases.join(',')).
					r('PLH_Ctag', this.options.tags.join(',')).
					r('PLH_CType', this.options.postingTypes.join(',')).
					r('PLH_PostingListSorting', this.options.sortOrder).
					r('PLH_upev_', this.options.appendUpcEve).
					r('PLH_Clang', this.options.languages.length == 0 ? 'NULL' : this.options.languages.join(',')).
          r('PLH_Cfinal', 'NULL').url
			);
		}.bind(this), 1);
	},
	
	onLoadPage: function($super, pageEl) {
		$super(pageEl);
		if (this.options.tagCloud != undefined) {
			var tagCloud = global.findTagCloud();
			if (tagCloud != undefined) {
				tagCloud.update(this.options.tagCloud);
			}
		}
		if (this.searchBoxInput != undefined)
			this.searchBoxInput.value = this.options.searchPhrases.join(" ");
			
		this.resetDimensions();
	}
});
PostingList.addMethods(SearchBox);
PostingList.addMethods(SortableBox);
//#REQUIRES ListBase

var ShoutboxList = Class.create(ListBase, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({pagingEffect: 'vertSlide', pollInterval:5}, options));

		this.el.attachedList = this;
		this.periodicalExecuter = new PeriodicalExecuter(this.ping.bind(this), this.options.pollInterval);
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
				
		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.el.attachedList = null;
	},
	
	onClick: function(ev) {
		var delBtn = ev.findElement('.deleteBtn');
		if (delBtn) {
			ev.stop();
			var line = ev.findElement('li');
			line.setOpacity(.5);
			delBtn.hide();

			var req = new Ajax.Request(delBtn.readAttribute('href'), {
				method: 'get',
				onSuccess: this.delSuccess.bind(this),
				onException: this.delException.bind(this),
				onFailure: this.delFailure.bind(this)
			});
		}
	},
	
	delSuccess: function(req) {
		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}
		
		if (json.success) {
			this.loadPage(0);
		} else {
			alert('Delete failed. Maybe your session timed out.');
		}
	},
	
	delException: function(req, ex) {
		alert('Delete attempt led to Exception: ' + ex.message );
	},
	
	delFailure: function(req) {
		alert('Delete failed');
	},

	loadPage: function($super, page) {
		$super(page);
		this.standardJSONRequest(this.options.url.replace('PLH_pagenum', page));
	},
	
	displayPage: function($super, html, oldPage) {
		$super(html, oldPage);
		if (this.options.inChat && this.options.newMessageNotice) {
			document.title = this.options.newMessageNotice;
			global.blinkTitle();
		}
	},
	
	ping: function(pe) {
		if (global.stopRequests)
			return;
		this.standardJSONRequest(this.options.pingUrl.replace('PLH_timestamp', this.options.latestTimestamp));
	}
});

//#REQUIRES DOMAttached

var LoginBtnFocus = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.formFocus = null;
		
		this.safeObserve(this.el.previous('a'), 'click', this.onClick.bindAsEventListener(this));
	},
	
	getFocusForm: function() {
		if (this.formFocus == null) {
			this.formFocus = $(this.options.focusForm);
		}
		return this.formFocus;
	},
	
	onClick: function(ev) {
		ev.stop();
		this.getFocusForm().down('input').focus();
	}
});
//#REQUIRES DOMAttached

var MassUpload = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.yahooContacts = $(el).down('.yahooContacts');
		if (this.yahooContacts != undefined) {
		    this.safeObserve(this.yahooContacts, 'click', this.onYahooClick.bindAsEventListener(this));
		}
		this.batchContacts = $(el).down('.batchContacts');
		if (this.batchContacts != undefined) {
		    this.safeObserve(this.batchContacts, 'click', this.onBatchClick.bindAsEventListener(this));
		}
		this.importDiv = this.el.down('.batchImport');
		this.howTo = this.el.down('.howTo');
		this.errDiv = this.el.down('.error');
		this.textArea = this.el.down('textarea');
	},
	
	onYahooPermissionSuccessful : function() {
		this.messageSuccess(this.options.msgPermissionSuccessful);
		this.onYahooClick();
	},
	
	onBatchClick : function(ev) {
		this.importDiv.removeClassName('collapsed');
		this.batchContacts.up().style.display = 'none';
	},
	
	onYahooClick : function(ev) {
		if (ev)
			ev.stop();
		if (this.lock) return;
		this.lock = true;

		var req = new Ajax.Request(this.options.getYahooContactsUrl, {
			method: 'get',
			onSuccess: this.requestSuccessful.bind(this),
			onException: this.requestFailed.bind(this),
			onFailure: this.requestFailed.bind(this),
			parameters: { }
		});
	},
	
	requestSuccessful: function(req) {
		var json;
		try {
			json = req.responseText.evalJSON();
		} catch(e) {
			this.lock = false;
			this.messageError(this.options.msgError + "<br />" + e.message);
			return;
		}
		this.lock = false;
		
		if (!json.success) {
			this.messageError(json.error);
		} else if (json.needPermission) {
			this.messageHide();
			this.howTo.removeClassName('collapsed');
			this.howTo.down('a').href = json.redirectUrl;
			this.howTo.down('a').target = '_blank';
			document.massUpload = this;
	    } else {
			if (this.batchContacts != undefined)
				this.onBatchClick();
			this.messageSuccess(this.options.msgImportSuccessful);
	        var contact;
	        for (var i=0; i<json.contacts.length; i++) {
	            contact = json.contacts[i];
	            this.textArea.value += (contact.firstName + ' ' + contact.lastName + ' <' + contact.email + '>\n');
	        }
	    }
	},
	
	messageError : function(msg) {
		this.errDiv.style.display = 'block';
		this.errDiv.className = 'error';
		this.errDiv.update(msg);
	},

	messageSuccess : function(msg) {
		this.errDiv.style.display = 'block';
		this.errDiv.className = 'success';
		this.errDiv.update(msg);
	},
	
	messageHide : function() {
		this.errDiv.style.display = 'none';
	},
	
	requestFailed: function(req) {
		this.lock = false;
		this.messageError(this.options.msgError);
	}
});

//#REQUIRES DOMAttached

var MemberSelector = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.groupSelector = this.el.down('select');
		this.memberPart = this.el.down('.memberPart');
		this.safeObserve(this.groupSelector, 'change', this.onChange.bindAsEventListener(this));
	},
	
	onChange: function(ev) {
		if (this.groupSelector.value != 0) {
			this.memberPart.addClassName('collapsed');
		} else {
			this.memberPart.removeClassName('collapsed');
		}
	}
});
//#REQUIRES DOMAttached

var MemberShowcaseListItem = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		var s = this.el.next('script');
		if (s)
			this.removeElement(s);
		s = null;

		this.setupDetailsTry = 0;
		if (this.options.showBubble) {
			setTimeout(this.setupDetails.bind(this), 1);		
			this.safeObserve(this.el.down('.layoutedImg').down(), 'mouseover', this.onMouseOver.bindAsEventListener(this));
			this.safeObserve(this.el.down('.caption').down('a'), 'mouseover', this.onMouseOver.bindAsEventListener(this));
			this.safeObserve(this.el.down('.layoutedImg').down(), 'mouseout', this.onMouseOut.bindAsEventListener(this));
			this.safeObserve(this.el.down('.caption').down('a'), 'mouseout', this.onMouseOut.bindAsEventListener(this));
		}
		this.visible = false;
		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.parentShowcase = null;
		this.details = null;
	},
	
	determineParentShowcase: function() {
		this.parentShowcase = this.el.up('.memberShowcase').attachedObj;
	},
	
	setupDetails: function() {
		// Sometimes for some mysterious reasons the DOM-Tree is broken at the first try
		// and details can't be found. So we try to find the details up to three times.
	
		if (this.details || this.setupDetailsTry >= 3)
			return;
		++this.setupDetailsTry;

		this.details = this.el.down('.memberDetails');
		this.details.hide();
		this.details.remove();
		global.getToplevelElement().appendChild(this.details);
		this.safeObserve(this.details, 'mouseover', this.onMouseOver.bindAsEventListener(this));
		this.safeObserve(this.details, 'mouseout', this.onMouseOut.bindAsEventListener(this));
		this.safeObserve(this.details, 'click', this.onListClick.bindAsEventListener(this));
		if (!this.parentShowcase) {
			this.determineParentShowcase();
			if (this.parentShowcase)
				this.parentShowcase.registerDetailPane(this.details);
		}
	},
	
	onMouseOver: function(ev) {
		if (this.hideTimer)
			clearTimeout(this.hideTimer);
		if (!this.visible)
			this.showTimer = setTimeout(this.show.bind(this), 500);
	},
	
	show: function() {
		this.detailsPos = this.el.cumulativeOffset();
		var liDims = this.el.getDimensions();
		var dims = this.details.getDimensions();
		this.details.setStyle({
			left: (this.detailsPos.left - 1 + (liDims.width - dims.width)/2).round() + "px",
			top: (this.detailsPos.top-4) + "px"
		});
		
		// only if there's something in the details
		if (this.details.down('ul').down('li'))
			this.details.show();
		if (this.parentShowcase.activeDetailsPane && this.parentShowcase.activeDetailsPane.visible)
			this.parentShowcase.activeDetailsPane.hide();
		this.parentShowcase.activeDetailsPane = this;
		this.visible = true;
		if (this.showTimer)
			clearTimeout(this.showTimer);
	},
	
	hide: function() {
		if (this.hideTimer)
			clearTimeout(this.hideTimer);
		this.hideTimer = undefined;
		this.details.hide();
		this.visible = false;
		this.parentShowcase.activeDetailsPane = undefined;
	},

	onMouseOut: function(ev) {
		if (this.visible)
	    this.hideTimer = setTimeout(this.hide.bind(this), 500);
		else if (this.showTimer)
			clearTimeout(this.showTimer);
	},
	
	onListClick: function(ev) {
		var link = ev.findElement('a.postingDetailLink');
		if (link) {
			ev.stop();
			if (!link.details)
				link.details = new PostingListItemDetailsLoader(link.readAttribute('href'));
			link.details.show();
			link = null;
		}
	}
});
//#REQUIRES DOMAttached

var MessageList = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
	},
	
	cleanUpMessages: function(el) {
		var li = el.up('li');		
		if (typeof(li) == 'undefined')
			return;
			
		li.hide();
		
		var ul = li.up('ul');
		var hasVisible = false;
		for (var li = ul.down('li'); li; li = li.next('li')) {
			if (Element.getStyle(li, 'display') != 'none') {
				hasVisible = true;
				break;
			}
		}
		if (!hasVisible) {
			var container = el.up('.messageContainer');
			if (container)
				container.hide();
		}
	}
});

//#REQUIRES MessageList

var KeepAlive = Class.create(MessageList, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.keepAlive = true;
		this.timeout = 20 * 1000;
		
		window.setInterval(this.ping.bind(this), this.timeout);
	},
	
	ping: function() {
		if (!this.keepAlive)
			return;
		
		var now = new Date();
		var counterName = 'keepalive' + now.getDay() + '' + now.getHours();
		new Ajax.Request(this.options.url, {
			method: 'get',
			asynchronous: true,
			onFailure: function() { this.keepAlive = false; }.bind(this),
			onException: function() { this.keepAlive = false; }.bind(this),
			onSuccess: this.onPing.bind(this),
			parameters: {
				nocache: Math.random()
			}
		});
	},
	
	onPing : function(req) {
		try {
			var json;
			try {
				json = req.responseText.evalJSON();
			} catch(e) {
				// don't call global.handleFailedAJAJRequest() when keep alive ping fails:
				// this probably means that the internet connection is not available at the moment
				// (e.g. disconnected from wireless network), so we shouldn't try to reload the
				// page.
				this.keepAlive = false;
				return;
			}

			if (json.html == undefined || json.html.length == 0)
				return;

			if (!this.container) {
				this.container = Builder.node('div', { className:'messageContainer' });
				this.safeObserve(this.container, 'click', this.onClick.bindAsEventListener(this));
				document.body.appendChild(this.container);
				if (global.isIE7) {
					this.container.style.display = "none";
					window.setTimeout(this.renderPageIE7.bind(this), 1);
				}
			} else {
				if (global.isIE7) {
					this.container.style.display = "none";
					window.setTimeout(this.renderPageIE7.bind(this), 1);
				} else {			
					this.container.show();
				}
			}
			
			if (typeof(this.oldLength) == "undefined" || this.oldLength != json.html.length) {
				document.title = this.options.newInvitationWindowTitle;
				global.blinkTitle();
				this.oldLength = json.html.length;
			}

			this.container.update(json.html);
			this.container.setStyle({display: 'block'});
		} catch(e) {
			window.alert(e.fileName + ":" + e.lineNumber + ": " + e.message);
			return;
		}
	},
	
	onClick : function(e) {
		var declineChatInvitation = e.findElement('a');
		if (declineChatInvitation && declineChatInvitation.className.indexOf('declineChatInvitation') >= 0) {
			e.stop();
			new Ajax.Request(declineChatInvitation.href, { 
				method : 'get',
				asynchronous: true,
				parameters: {
					nocache: Math.random()
				}
			});
			this.cleanUpMessages(declineChatInvitation);
			if (global.isIE7) {
				this.container.style.display = "none";
				window.setTimeout(this.renderPageIE7.bind(this), 1);
			}
		}
	},
		
	renderPageIE7 : function() {
		var hasVisible = false;
		
		for (var li = this.container.down('li'); li; li = li.next('li')) {
			if (Element.getStyle(li, 'display') != 'none') {
				hasVisible = true;
				break;
			}
		}
		
		if (hasVisible)
			this.container.style.display = "block";
	}
});
//#REQUIRES DOMAttached

var NewPostingIcons = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.safeObserve(this.el, 'mouseover', this.onMouseOver.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseout', this.onMouseOut.bindAsEventListener(this));
		this.caption = this.el.up().down('.caption');
		this.caption.origText = this.caption.innerHTML;
	},
	
	onMouseOver: function(ev) {
		var img = ev.findElement('img');
		if (img) {
			this.caption.update(img.readAttribute('title'));
		}
	},
	
	onMouseOut: function(ev) {
		var img = ev.findElement('img');
		if (img) {
			if (this.caption.origText) {
				this.caption.update(this.caption.origText);
			}
		}
	}
});
//#REQUIRES DOMAttached

var OpenSocialGadget = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		var gadget0 = gadgets.container.createGadget({specUrl: this.options.gadgetUrl, secureToken: this.options.secToken, 'viewParams' : {'contextId': this.options.contextId} });
		gadget0.setServerBase(this.options.baseUrl);
		gadgets.container.setCountry(this.options.containerCountry);
		gadgets.container.setLanguage(this.options.containerLanguage);
		gadgets.container.setView(this.options.gadgetView);
		gadgets.container.addGadget(gadget0);
		gadgets.container.layoutManager.setGadgetChromeIds([this.el.id]);
		gadgets.container.renderGadget(gadget0)
	}
});

//#REQUIRES DOMAttached

var Overlay = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		if(Overlay.Show == undefined) {
			Overlay.Show = this.show;
		}
		if(Overlay.Close == undefined) {
			Overlay.Close = this.close;
		}
		this.el.down('.background').setOpacity(.6);
		this.el.hide();
		this.el.removeClassName('collapsed');
		
		this.el.position = this.position;
		
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		//if you encounter a situation in which you don't want to have this repositioning behavior, 
		//you can either try to stop the click event by your handler (ev.stop()) 
		//or remove this observer completely and call position() from everywhere where the content gets resized (might be best do this in C#)
	},
	
	onClick : function(ev) {
		this.position();
	},
	
	position : function() {
		if(this.el != undefined)
			overlayEl = this.el;
		else
			overlayEl = this;
		var bodyDim = document.body.getDimensions();
		var viewDim = document.viewport.getDimensions();
		overlayEl.setStyle({ height: bodyDim.height + 'px', width: bodyDim.width + 'px' });
		var contentDiv = overlayEl.down('.content');
		var elView = overlayEl.viewportOffset();
		var innerDim = contentDiv.getDimensions();
		var left = (viewDim.width - innerDim.width)/2 - elView.left;
		left = (left + innerDim.width) > bodyDim.width ? (bodyDim.width - innerDim.width) : left;
		left = left < 0 ? 0 : left.round();
		var topDist = (viewDim.height - innerDim.height)/4 - elView.top; // nice position in viewport
		topDist = (topDist + innerDim.height) > bodyDim.height ? (bodyDim.height - innerDim.height) : topDist; //move up if body too small
		topDist = topDist < 30 ? 30 : topDist.round();
		contentDiv.setStyle({ top: topDist + 'px', left: left + 'px' });
		if((topDist + innerDim.height) > bodyDim.height) {
			document.body.setStyle({ height: (topDist + innerDim.height) + 'px' });
			this.position();
		}
		if((left + innerDim.width) > bodyDim.width) {
			document.body.setStyle({ width: (left + innerDim.width) + 'px' });
			this.position();
		}
		
	},
	
	show : function(overlayId) {
		var overlayEl;
		if(overlayId != undefined)
			overlayEl = document.getElementById(overlayId);
		else if(this != undefined)
			overlayEl = this.el;
		if(overlayEl) {
			Overlay.Current = overlayEl;
			overlayEl.setStyle({ visibility: 'hidden' });
			overlayEl.show();
			overlayEl.position();
			overlayEl.setStyle({ visibility: 'visible' });
			
		}
	},
	
	close : function(overlayId) {
		var overlayEl;
		if(overlayId != undefined)
			overlayEl = document.getElementById(overlayId);
		else if(this != undefined)
			overlayEl = this.el;
		if(overlayEl) {
			Overlay.Current = undefined;
			overlayEl.hide();
		}
	}
});
Overlay.CloseCurrent = function() {
	if(Overlay.Current != undefined) {
		Overlay.Close(Overlay.Current.id);
	}
}



var OverlayOpener = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.safeObserve(this.el, 'click', this.onOpenClick.bindAsEventListener(this));
	},
	onOpenClick : function (ev) {
		Overlay.Show(this.options.overlayId);
	}
});


var OverlayCloser = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.safeObserve(this.el, 'click', this.onCloseClick.bindAsEventListener(this));
	},
	onCloseClick : function (ev) {
		Overlay.Close(this.options.overlayId);
	}
});
//#REQUIRES UrlTemplate
//#REQUIRES DOMAttached

var PartyPromotionList = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.el.promotionList = this;
		
		this.promoText = this.el.down('.partyItemTextBox');
		this.promoCode = this.el.down('.promoCode');
		this.promoValue = this.el.down('.promoValue');
		this.promoDesc = this.el.previous('p');
		
		this.registerUnloadAction(this.cleanUp.bind(this));
		
		this.el.hide();
	},
	
	cleanUp: function() {
		this.el.promotionList = null;
	},
	
	getPromotions: function() {
		var address = this.el.up('form').down('.address');
		var valCoords = address.down('.addressInput-coordinates').value.replace(',', ':');
		var valCity = address.down('.city input, .cityDE input').value;
		var valCountry =  address.down('.country').value;
		var url = new UrlTemplate(this.options.promoUrl).
			r('PLH_coords', valCoords ? valCoords : 'NULL').
			r('PLH_city', valCity ? valCity : 'NULL').
			r('PLH_country', valCountry ? valCountry : 'NULL').url;
		var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onLoaded.bind(this)
		});
	},
	
	onLoaded: function(req) {
		var json = req.responseText.evalJSON();
		var promo = json.promo;
		if (promo == null) {
			this.el.hide();
			return;
		}
		
		this.promoText.value = promo.name;
		this.promoCode.value = promo.code;
		this.promoValue.value = "0";
		this.promoDesc.innerHTML = promo.desc;
		
		this.el.show();
	}
	
});//#REQUIRES DOMAttached

var PhotoAppletLink = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		this.url = $(el).href;
	},
	
	onClick : function(e) {
		window.open(this.url, "uploadapplet", "height=200,width=660");
		e.stop();
	}
});

//#REQUIRES DOMAttached
//#REQUIRES UrlTemplate

var PlaylistManagement = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		Sortable.create(el, {only : 'playlistEntry'});
		
		var btnSubmit = this.el.down('input[type=submit]');
		this.safeObserve(this.el.down('.save'), 'click', this.onSave.bindAsEventListener(this));
		this.safeObserve(btnSubmit, 'click', this.onSubmit.bindAsEventListener(this));
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onSubmit: function(ev) {
		this.onSave(ev, true);
	},
	
	onClick: function(ev) {
		var del = ev.findElement('span');
		if (del && del.hasClassName("deleteBtn")) {
			ev.stop();
			del.up("li").remove();
			return;
		}
		
		var play = ev.findElement('a');
		if (play && play.hasClassName('button')) {
			ev.stop();
			window.open(play.href, "_blank", "height=190,width=420");
			return;
		}
	},
	
	onSave: function(ev, indirectCall) {
		if (!indirectCall)
			ev.stop();
		
		var idString = '';
		this.el.select('li.playlistEntry').each(function(el) { idString += el.down('input[type=hidden]').value + ','; });
		if (idString)
			idString = idString.substr(0, idString.length-1);
		else
			return;
		
		var url = new UrlTemplate(this.options.saveUrl).r('PLH_Cplaylist', idString).url;
		
		new Ajax.Request(url, {
			method: 'get',
			asynchronous: false
		});
    
    window.location.href = this.options.refererUrl;
	}
});


//#REQUIRES DOMAttached

var PlazaCategories = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.loadURL = this.options.loadURL;
		this.lastPlaceholder = null;
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		
		this.selectedItem = this.el.down('.selectedCategory');
		
		if (this.selectedItem != undefined) {
			if (this.selectedItem.down('span') != undefined)
				this.loadList(this.selectedItem.down('span'));
		}
	},
	
	onListLoad: function(req, placeholder, loadedFromServer) {
		if(loadedFromServer) {
			try {
				var json = req.responseText.evalJSON();
			} catch(e) {
				global.handleFailedAJAJRequest();
				return;
			}	
			
			placeholder.update(json.list);
		}
		
		if (this.lastPlaceholder != null) {
			this.lastPlaceholder.update('');
		}
		if(this.lastPlaceholder == placeholder) {
			this.lastPlaceholder = null;
		} else {
			this.lastPlaceholder = placeholder;
			this.fixGoogleMapPositioning();
		}
	},
	
	onClick: function(ev) {
		var target = ev.findElement('span');
		if (target == undefined || !target.hasClassName('expand')) {
			return;
		}

		this.loadList(target);
	},
	
	loadList : function(target) {
		var listPlaceholder = target.next('div');
		if (listPlaceholder.hasClassName('collapsed')) {
			listPlaceholder.removeClassName('collapsed');
			this.onListLoad(null, listPlaceholder, false);
		} else {
			var cat = target.next('input').value;
			new Ajax.Request(this.loadURL.replace('PLH_cat', cat).replace('PLH_ccat', cat), { 
				method : 'get',
				onSuccess: function(req) { this.onListLoad(req, listPlaceholder, true) }.bind(this)
			} );
			listPlaceholder.update('<img src="/img/category_ajax_loader.gif" />');
		}
	},

	fixGoogleMapPositioning : function() {
		var googleMap = this.lastPlaceholder.down('.googleMap');
		if(googleMap == undefined) {
			return;
		}
		var ul = this.el.down('ul');
		var heightToMoveMap = ul.offsetTop + ul.offsetHeight - (this.lastPlaceholder.offsetTop + googleMap.offsetHeight);
		if(heightToMoveMap < 0) {
			var top = googleMap.offsetTop + heightToMoveMap;
			var extraMarginBottomForUl = ul.offsetTop - top;
			if(extraMarginBottomForUl > 0) {
				top = ul.offsetTop;
				ul.setStyle({ marginBottom: extraMarginBottomForUl + 'px' });
			}
			googleMap.setStyle({ 'top': top + 'px' });
		}

	}
});

//#REQUIRES PostingListItemDetailsLoader
//#REQUIRES DOMAttached

var PlazaHeader = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);
		
		var detailsLink = this.el.down('.details');
		
		if (detailsLink != undefined)
			this.safeObserve(detailsLink, 'click', this.Show.bindAsEventListener(this));		
	},

	onPopupFailure: function(req) {
		alert('Plaza Details could not be loaded.');
	},
	
	onPopupLoaded: function(req) {
		this.ShowDetails(req);
	},
	
	Show: function(event) {
		global.showBackdropProgressIndicator();	
		
		var req = new Ajax.Request(this.options.ajajUrl, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this),
			onException: this.onPopupFailure.bind(this),
			onFailure: this.onPopupFailure.bind(this)
		});
	},
	
	ShowDetails : function(req) {
		this.loader = new PostingListItemDetailsLoader();
		this.loader.onDetailsLoaded(req);	
	}
});//#REQUIRES DOMAttached

var PlazaHomePanel = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.homePnl = this.el.down(".plazaHomePanel");
		this.details = this.homePnl.down(".plazaHomePanelDetails");

		this.safeObserve(this.details, 'click', this.onExColClick.bindAsEventListener(this));

		this.colBtn = this.homePnl.down(".teaser").down(".collapseBtn");
		this.safeObserve(this.colBtn, 'click', this.onExColClick.bindAsEventListener(this));
		this.safeObserve(this.colBtn, 'doubleclick', this.onExColClick.bindAsEventListener(this));
		
		this.expandBtn = this.homePnl.down(".teaser").down(".expandBtn");
		this.safeObserve(this.expandBtn, 'click', this.onExColClick.bindAsEventListener(this));
		this.safeObserve(this.expandBtn, 'doubleclick', this.onExColClick.bindAsEventListener(this));
		
		// special case for register-button: do not "reload" page but hide curtain
		var btnPanel = this.details.down('.btnPanel');
		if (btnPanel)
			this.safeObserve(btnPanel, 'click', this.onBtnClick.bindAsEventListener(this));
		
		// Reparent the detailsPanel
		this.details.parentNode.removeChild(this.details);
		global.getToplevelElement().appendChild(this.details);
		
		if (this.options.expandDetails)
			setTimeout(this.showDetails.bind(this), 2000);
			
		if (global.isIE) {
			var dims = this.el.getDimensions();
			this.el.down('.headBarBg').setStyle({
				height: dims.height + 'px'
			});
		}
	},
	
	showDetails: function() {
		this.homePnl.addClassName('expanded');

	  var wd = Math.min(this.homePnl.getWidth() - 2, 600);
	  this.details.style.width = wd + "px";

		var ofs = this.homePnl.cumulativeOffset();
		var dim = this.homePnl.getDimensions();
		ofs.top += dim.height;
		
		this.details.style.top = ofs.top - (global.isIE6 ? 48 : 0) + "px";
		this.details.style.left = (ofs.left + (dim.width - wd)/2) + "px";

		this.slideEff = new Effect.Slide(this.details, {duration:.5, queue:'end', out:false, edge:'top' });
	},
	
	hideDetails: function() {
		this.homePnl.removeClassName('expanded');
		this.slideEff = new Effect.Slide(this.details, {duration:.5, queue:'end', out:true, edge:'top' });
	},
	
	onExColClick: function(ev) {
	  if (this.slideEff && this.slideEff.state != 'finished')
			return;
		if (this.homePnl.hasClassName('expanded')) {
			this.hideDetails();
		} else {
			this.showDetails();
		}
	},
	
	onBtnClick: function(ev) {
		var link = ev.findElement('a');
		if (link && link.href == window.location.href) {
			ev.stop();
			this.hideDetails();
		}
	}
});

//#REQUIRES DOMAttached
//#REQUIRES PostingListItemDetailsLoader

var PlazaListItem = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onClick: function(ev) {
		var link = ev.findElement('a.postingDetailLink');
		if (link) {
			ev.stop();
			if (!link.details) {
				var url = link.up().down('.detailsURL').innerHTML;
				link.details = new PostingListItemDetailsLoader(url);
			}
			link.details.show();
		}
	}
});//#REQUIRES DOMAttached

var PopupCloser = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.el = this.el.down('a');
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onClick: function(ev) {
		window.opener.location.href = this.el.href;
		self.close();
		ev.stop();
	}
});

//#REQUIRES DOMAttached

var PostingListItem = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		// For some reason the google map elements get initialized several times.
		// Until we found a better way to avoid this, we work around it with the following hack:
		if (this.el.attachments) {
			++this.el.attachments;
			return;
		} else
			this.el.attachments = 1;

		this.expandBtn = this.el.previous('.expandBtn');

		//NOT PART OF YAL BUT PART OF PARTY PORTAL
		
		if (global.portal == "miafiesta") {
			if (this.options.detailsUrl) {
				this.details = new PostingListItemDetailsLoader(this.options.detailsUrl);

				this.safeObserve(this.el, 'click', this.onExColClick.bindAsEventListener(this));
				this.safeObserve(this.el, 'doubleclick', this.onExColClick.bindAsEventListener(this));
			}
		}

		this.registerUnloadAction(this.cleanUp.bind(this));
		this.count = 0;
	},
	
	cleanUp: function() {
		this.expandBtn = null;
	},
	
	onExColClick: function(ev) {
		if (ev.findElement('a.memlink'))
			return;
		if (ev.findElement('a.removePosting'))
			return;
		
		ev.stop();
		++this.count;

		if (this.fadeEff && this.fadeEff.state != 'finished')
			return;

		this.showDetails();
		
		var titlelink = this.el.down('p.title a');
		if(titlelink && titlelink.hasClassName('unread'))
			titlelink.removeClassName('unread').addClassName('read');
	},
	
	showDetails: function() {
		this.details.show();
	}
});//#REQUIRES DOMAttached

var PostingListItemDetails = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.btnList = this.el.down('.btnList');
		if (this.btnList) {
			this.safeObserve(this.btnList, 'mouseover', this.btnOnMouseOver.bindAsEventListener(this));
			this.safeObserve(this.btnList, 'mouseout', this.btnOnMouseOut.bindAsEventListener(this));
			this.btnList.select('.btnActive').each(function (el) {
				el.hide();
			});
		}

		this.album = this.el.down('.album');

		this.parentURL = this.options.parentUrl;

		this.startSlideshow = this.el.down('.gotoSlideshow');
		if (this.startSlideshow) {
			this.safeObserve(this.startSlideshow, 'click', this.onSlideshow.bindAsEventListener(this));
		}
		
		//NOT PART OF YAL
		/*
		this.backToParent = this.el.down('.gotoParent');
		if (this.backToParent) {
			this.safeObserve(this.backToParent, 'click', this.onParent.bindAsEventListener(this));
		}*/

	},

	btnOnMouseOver: function(ev) {
		var anch = ev.findElement('a');
		if (anch) {
			var act = anch.down('.btnActive');
			var inact = anch.down('.btnInactive');
			if (act && inact) {
				act.show();
				inact.hide();
			}
		}	
	},

	btnOnMouseOut: function(ev) {
		var anch = ev.findElement('a');
		if (anch) {
			var act = anch.down('.btnActive');
			var inact = anch.down('.btnInactive');
			if (act && inact) {
				act.hide();
				inact.show();
			}
		}	
	},
	
	onSlideshow: function(ev) {
		ev.stop();
		if (this.album)
			this.album.album.openSlideshowView();
		var embed = this.el.down('embed');
		if (embed) {
			Element.hide(embed);
		}
	},

	onParent: function(ev) {
		ev.stop();
		if (this.parentURL) {
			var loader = new PostingListItemDetailsLoader(this.parentURL);
			loader.show();
		}
	}
});//#REQUIRES DOMAttached

var PostingListItemDetailsLoader = Class.create(DOMAttached, {
	initialize: function($super, url) {
		$super();

		this.url = url;
		this.detailsLoaded = false;
		this.loadingDetails = false;
		this.showing = false;
	},

	onDetailsFailure: function(req) {
		alert('Loading posting details failed.');
	},
	
	onDetailsException: function(req, ex) {
		alert('Loading posting details led to exception: ' + ex.fileName + ':' + ex.lineNumber + ': ' + ex.message );
	},
	
	onDetailsLoaded: function(req) {
		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}

		if (json.details && json.details.length > 0) {
			this.detailsPane = Builder.node('div');
			Element.extend(this.detailsPane);
			this.detailsPane.update(json.details);
			this.detailsPane = this.detailsPane.down();

			this.detailsPane.hide();
			global.getToplevelElement().appendChild(this.detailsPane);
			this.detailsPane.addClassName('detachedPostingListDetails');
			this.detailsPane.enclosingList = this.el;
			this.detailsHideBtn = this.detailsPane.down('.hideBtn');
			if (this.detailsHideBtn != undefined)
				this.safeObserve(this.detailsHideBtn, 'click', this.hide.bindAsEventListener(this));
			// additional hiding elements (used by AddressConfirmation)
			this.detailsPane.select('.hide').each(function(node) {
				this.safeObserve(node, 'click', this.hide.bindAsEventListener(this));
			}, this);
			
			
			
			this.loadingDetails = false;
			this.detailsLoaded = true;
			
			if(json.hidden == undefined || json.hidden == null || !json.hidden)
				this.show()
		}
	},

	loadAndShow: function() {
		if (this.loadingDetails || global.stopRequests)
			return;

		global.showBackdropProgressIndicator();
		
		var req = new Ajax.Request(this.url, {
			method: 'get',
			onSuccess: this.onDetailsLoaded.bind(this),
			onException: this.onDetailsException.bind(this),
			onFailure: this.onDetailsFailure.bind(this)
		});
	},
	
	show: function() {
		this.showing = true;
		if (!this.backdropVisible) {
			this.backdropVisible = true;
			
			if (!PostingListItemDetailsLoader.activePosting) {
				global.backdrop.setOpacity(0);
				this.fadeEff1 = new Effect.Fade(global.backdrop, { from:0.0, to:0.55, duration:.5 });
				global.backdrop.setOpacity(0);
				global.backdrop.show();
				global.getToplevelElement().appendChild(global.backdrop);
			}
		}
		
		var oldActive = PostingListItemDetailsLoader.activePosting;		
		PostingListItemDetailsLoader.activePosting = this;
		if (oldActive && oldActive != this) {
			oldActive.hide();
		}

		if (!this.detailsLoaded) {
			this.loadAndShow();
			return;
		}

		var scrollOfs = document.viewport.getScrollOffsets();
		this.detailsPane.setStyle({
			position: 'absolute',
			top: Math.max(32, ((document.viewport.getHeight() - this.detailsPane.getHeight()) / 2 + scrollOfs.top).round()) + "px",
			left: ((document.viewport.getWidth() - this.detailsPane.getWidth()) / 2 + scrollOfs.left).round() + "px"
		});
		
		this.detailsPane.setOpacity(0);
		this.fadeEff2 = new Effect.Fade(this.detailsPane, { from:0.0, to:1, duration:.5 });
		this.detailsPane.show();
		
		this.safeObserve(global.backdrop, 'click', global.window.performEscapeActions.bind(global.window));
		this.escapeHandlerId = global.window.registerEscapeHandler(this.hide.bind(this));
		global.hideBackdropProgressIndicator();
		
		//Due to a rendering bug, select boxes overlap the backdrop in IE6. Hence disable them.
		if (global.isIE6) {
			$$('select').each(function(el) {
				el.hide();
			});
		}		
	},
	
	hide: function() {
		this.showing = false;
		global.window.unregisterEscapeHandler(this.escapeHandlerId);
		global.backdrop.stopObserving('click', global.window.performEscapeActions.bind(global.window));
		
		if (!this.detailsPane)
			return;

		var effs = [
			new Effect.Fade(this.detailsPane, { from:1, to:0, duration:.5 })
		];
		if (PostingListItemDetailsLoader.activePosting == this)
			effs.push(new Effect.Fade(global.backdrop, { from:0.55, to:0, duration:.5 }));

		this.fadeEff = new Effect.Parallel(effs,
		{ duration:.5,
			afterFinish: (function() {
			this.detailsPane.hide();
			if (PostingListItemDetailsLoader.activePosting == this) {
				global.backdrop.hide();
				PostingListItemDetailsLoader.activePosting = undefined;
			}
			this.backdropVisible = false;
		}).bind(this) });
		
		if (global.isIE6) {
			$$('select').each(function(el) {
				el.show();
			});
		}
	}
});
//#REQUIRES PostingListItemDetailsLoader
//#REQUIRES DOMAttached

var FeedbackPopup = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);
		this.trigger = this.el.down('.FeedbackPopupTrigger');
		if(this.trigger != undefined) {
			this.safeObserve(this.trigger, 'click', this.showPopup.bindAsEventListener(this));
		}
		this.storeBtn = this.el.down('.sendFeedback');
		if(this.storeBtn != undefined) {
			this.safeObserve(this.storeBtn, 'click', this.storeFeedback.bindAsEventListener(this));
		}
	},
	
	showPopup: function(event) {
		var req = new Ajax.Request(this.options.popupUrl, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this)
		});
	},
	
	onPopupLoaded: function(req) {
		var json = req.responseText.evalJSON();
		global.showBackdropProgressIndicator();
		if(global.feedpopup != undefined) {
			global.feedpopup.hide();
		}
		global.feedpopup = new PostingListItemDetailsLoader();
		global.feedpopup.onDetailsLoaded(req);
	},
	
	storeFeedback: function(event) {
		var url = this.options.storeFeedbackUrl;
		
		var valSubj = this.escapeUrlParam(this.el.down('.txtSubject').getValue());
		var valMess = this.escapeUrlParam(this.el.down('.txtMessage').getValue());
		
		url = url.replace('PLH_subj', valSubj).replace('PLH_message', valMess);
		var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onStored.bind(this),
			onException: this.onStoreFail.bind(this),
			onFailure: this.onStoreFail.bind(this)
		});
	},
	
	onStored: function(req) {
		var json = req.responseText.evalJSON();
		var success = json.success == 'y';
		if(!success) {
			onStoreFail();
			return;
		}
		alert(this.options.messageSucc);
		global.feedpopup.hide();
		global.feedpopup = null;
	},
	
	onStoreFail: function() {
		alert(this.options.messageFail);
	},
	
	escapeUrlParam: function(param) {
		var p = "";
		for(var i = 0; i < param.length; i++) {
			p += param.charCodeAt(i);
			if(i != param.length - 1) {
				p += ';';
			}
		}
		return p;
	}
	
});//#REQUIRES PostingListItemDetailsLoader
//#REQUIRES DOMAttached

var PlazaHeader = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);
		
		var detailsLink = this.el.down('.details');
		
		if (detailsLink != undefined)
			this.safeObserve(detailsLink, 'click', this.Show.bindAsEventListener(this));		
	},

	onPopupFailure: function(req) {
		alert('Plaza Details could not be loaded.');
	},
	
	onPopupLoaded: function(req) {
		this.ShowDetails(req);
	},
	
	Show: function(event) {
		global.showBackdropProgressIndicator();	
		
		var req = new Ajax.Request(this.options.ajajUrl, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this),
			onException: this.onPopupFailure.bind(this),
			onFailure: this.onPopupFailure.bind(this)
		});
	},
	
	ShowDetails : function(req) {
		this.loader = new PostingListItemDetailsLoader();
		this.loader.onDetailsLoaded(req);	
	}
});//#REQUIRES DOMAttached
//#REQUIRES PostingListItemDetailsLoader

var PlazaListItem = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onClick: function(ev) {
		var link = ev.findElement('a.postingDetailLink');
		if (link) {
			ev.stop();
			if (!link.details) {
				var url = link.up().down('.detailsURL').innerHTML;
				link.details = new PostingListItemDetailsLoader(url);
			}
			link.details.show();
		}
	}
});//#REQUIRES DOMAttached

var PostingRating = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.btn = this.el.down('span');		
		this.count = this.el.down('.count');
		
		this.safeObserve(this.btn, 'click', this.onClick.bindAsEventListener(this));		
		this.disableRating = false;
	},
	
	onClick: function(ev) {
		this.rate();
		ev.stop;
	},	

	rate: function() {
		if(this.disableRating)
			return;

		this.disableRating = true;

		var req = new Ajax.Request(this.options.rateUrl, {
			method: 'get',
			onSuccess: this.ratingSuccess.bind(this),
			onException: this.ratingException.bind(this),
			onFailure: this.ratingFailure.bind(this)
		});
	},

	ratingSuccess: function(req) {
		this.disableRating = false;

		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}
		
		if (json.success) {
			this.count.update(parseInt(this.count.innerHTML)+1);		
			this.stopObserve(this.btn, 'click');			
			this.btn.removeClassName('link');
			this.btn.down('img').writeAttribute('title', this.options.ratedTooltip);
		} else {
			window.alert("Rating failed.");
		}
	},

	ratingException: function(req, e) {
		window.alert("Rating failed: " + e.message);
		this.disableRating = false;
	},

	ratingFailure: function(req) {
		window.alert("Rating failed. HTTP status " + req.status);
		this.disableRating = false;
	}
});
//#REQUIRES DOMAttached

var PostingVisibility = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.all = this.el.down('.all');
		this.friends = this.el.down('.friends');
		this.friendslist = this.el.down('ul');
		
		this.safeObserve(this.all, 'click', this.applyConstraints.bindAsEventListener(this));
		this.safeObserve(this.friends, 'click', this.applyConstraints.bindAsEventListener(this));
		
		if (this.all.checked) {
			this.friends.checked = true;
		}
		
		PostingVisibility.instance = this;
		
		this.applyConstraints();
	},
	
	applyConstraints: function() {
		if (this.all.checked) {
			this.friends.disabled = true;
			this.friends.checked = false;
		} else {
			this.friends.disabled = false;
		}
		
		if (this.friendslist != undefined) {
			if (this.friends.checked || this.all.checked) {
					this.friendslist.select('input').each(function (el) { el.disabled = true; el.checked = false; });
					if(typeof(FriendslistCreateOnTheFly) != 'undefined' && typeof(FriendslistCreateOnTheFly.instance) != 'undefined') {
						FriendslistCreateOnTheFly.instance.staticEnable(false);
					}
			} else {
					this.friendslist.select('input').each(function (el) { el.disabled = false; });
					if(typeof(FriendslistCreateOnTheFly) != 'undefined' && typeof(FriendslistCreateOnTheFly.instance) != 'undefined') {
						FriendslistCreateOnTheFly.instance.staticEnable(true);
					}
			}
		}		
	},
	
	uncheckAllAndFriends : function() { //remote uncheck
		this.all.checked = false;
		this.friends.checked = false;
		this.applyConstraints();
	}
});//#REQUIRES PostingListItemDetailsLoader
//#REQUIRES DOMAttached

var ProfileLeftColumn = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);
		
		this.safeObserve(this.el.down('.networkMemberProfile'), 'click', this.Show.bindAsEventListener(this));		
	},

	onPopupFailure: function(req) {
		alert('Profile Details could not be loaded.');
	},
	
	onPopupLoaded: function(req) {
		this.ShowDetails(req);
	},
	
	Show: function(ev) {
		ev.stop();
		
		global.showBackdropProgressIndicator();	
		
		var req = new Ajax.Request(this.options.ajajUrl, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this),
			onException: this.onPopupFailure.bind(this),
			onFailure: this.onPopupFailure.bind(this)
		});
	},
	
	ShowDetails : function(req) {
		this.loader = new PostingListItemDetailsLoader();
		this.loader.onDetailsLoaded(req);	
	}
});//#REQUIRES DOMAttached

 var QuickLinks = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.select_control = this.el.down('select');
		if(this.select_control != undefined) {
			this.safeObserve(this.select_control, 'change', this.onchange.bindAsEventListener(this));
		}
	},
	
	onchange: function(ev) {
		if(this.select_control.value != '') {
			window.location.href = this.select_control.value;
		}
	}
	
});
//#REQUIRES DOMAttached

var RecentTextResources = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.loadURL = this.options.loadURL;
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onClick: function(ev) {
		var target = ev.findElement('div');
		if (target == undefined || !target.hasClassName('trtarget'))
			return;
			
		target.removeClassName('trtarget');
		new Ajax.Request(this.loadURL, { 
			method : 'get',
			onSuccess: function(req) { this.onAjaxSuccess(req, target) }.bind(this)
		} );
		target.update('<img src="/img/category_ajax_loader.gif" />');
	},
	
	onAjaxSuccess: function(req, target) {
	  target.update(req.responseText.evalJSON().placeholder);
	}
});
//#REQUIRES DOMAttached

var RegisterHelp = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		for (var curLi = this.el.down("li"); curLi != undefined; curLi = curLi.next("li")) {
			var inp = curLi.down("input");
			if (inp == undefined) {
				inp = curLi.down("select");
			}
			var tooltip = curLi.down(".registerHelpTooltip");
		  if (inp != undefined && tooltip != undefined) {
				this.safeObserve(inp, 'focus', this.onFocusBlur.bindAsEventListener(this, tooltip));
				this.safeObserve(inp, 'blur', this.onFocusBlur.bindAsEventListener(this, tooltip));
			}
		}
	},
	
	onFocusBlur: function(ev) {
		var data = $A(arguments);
		data.shift();
		if (data[0] == undefined) {
			return;
		}
		if (data[0].hasClassName('registerHelpTooltipShown')) {
			data[0].removeClassName('registerHelpTooltipShown');
		} else {
			data[0].addClassName('registerHelpTooltipShown');
		}
	}
});//#REQUIRES DOMAttached

var RelationPaths = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);
		
		this.expandBtn = this.el.down('span.expanded');
		if (this.expandBtn != undefined) {
			this.safeObserve(this.expandBtn, 'click', this.onClick.bindAsEventListener(this));
		}
		this.collapseBtn = this.el.down('span.collapsed');
		if (this.collapseBtn != undefined) {
			this.safeObserve(this.collapseBtn, 'click', this.onClick.bindAsEventListener(this));
		}
	},
	
	onClick: function(ev) {
		if (this.expandBtn.hasClassName('collapsed')) {
			this.expandBtn.removeClassName('collapsed');
			this.collapseBtn.addClassName('collapsed');
		} else {
			this.expandBtn.addClassName('collapsed');
			this.collapseBtn.removeClassName('collapsed');
		}
	  
	  for (var curUl = this.el.down("ul"); curUl != undefined; curUl = curUl.next("ul")) {
			if (curUl.hasClassName('collapsed')) {
				curUl.removeClassName('collapsed');
				curUl.addClassName('expanded');
			} else if (curUl.hasClassName('expanded')) {
				curUl.removeClassName('expanded');
				curUl.addClassName('collapsed');
			}
	  }
	}
});

//#REQUIRES DOMAttached

var SecureTextBox = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		// preload tbFocusCenter image to prevent textbox from "disappearing" while focus image is loading
		if (global.preloadedFocusedImage == undefined) {
			global.preloadedFocusedImage = new Image();
			global.preloadedFocusedImage.src = "/img/tng/tbFocusCenter.png";
		}
		
		if (this.options.TextBoxMode == "SingleLine") {
			this.safeObserve(this.el.down('input'), 'focus', this.onFocus.bindAsEventListener(this));
			this.safeObserve(this.el.down('input'), 'blur', this.onBlur.bindAsEventListener(this));
	    } else if (this.options.TextBoxMode == "MultiLine") {
	        if (this.options.MaxLength > 0) {
				this.safeObserve(this.el.down('textarea'), 'keyup', this.onKeyup.bindAsEventListener(this));
			}
			this.previous = this.el.down('textarea').value;
	    }
	},
	
	onFocus: function(ev) {
		this.el.addClassName('focused');
	},
	
	onBlur: function(ev) {
		this.el.removeClassName('focused');
	},
	
	onKeyup: function(ev) {
		if (this.el.down('textarea').value.length > this.options.MaxLength) {
			this.el.down('textarea').value = this.previous;
		} else {
		    this.previous = this.el.down('textarea').value;
		}
	}
});
//#REQUIRES DOMAttached

var ShareForm = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.personCountControl = eval(document.getElementById(this.options.personCountControlId));
        this.personCount = this.personCountControl.value;
		this.table = this.el.down('table');
		$(el).select('.expandList').each(function(exp) {
			this.safeObserve(exp, 'click', this.onClickExpand.bindAsEventListener(this));
		}.bind(this));
		this.safeObserve($(el).down('.expandTable'), 'click', this.onClickAddRow.bindAsEventListener(this));
		if (this.table) {
			this.table.select('.delete').each(function(del) {
				this.safeObserve(del, 'click', this.onClickDelete.bindAsEventListener(this));
			}.bind(this));
		}
		this.form = this.el.up('form');
		if (this.form) {
			this.safeObserve(this.form, 'submit', this.updateIds.bindAsEventListener(this));
		}
	},
	
	createTextBox : function(tr) {
		var td = document.createElement('td');
		tr.appendChild(td);
		var div1 = document.createElement('div');
		var div2 = document.createElement('div');
		var div3 = document.createElement('div');
		var i = document.createElement('input');
		
		td.appendChild(div1);
		div1.appendChild(div2);
		div2.appendChild(div3);
		div3.appendChild(i);
		
		div1.className = 'textbox';
		div2.className = 'borderLeft';
		div3.className = 'borderRight';
		i.type = 'text';
		
		this.safeObserve(i, 'focus', this.onFocus.bindAsEventListener(div1));
		this.safeObserve(i, 'blur', this.onBlur.bindAsEventListener(div1));
	},
	
	onFocus: function(ev) {
		this.addClassName('focused');
	},
	
	onBlur: function(ev) {
		this.removeClassName('focused');
	},
	
	createDeleteLink : function(tr) {
		var td = document.createElement('td');
		tr.appendChild(td);
		var span = document.createElement('span');
		var text = document.createTextNode(this.options.deleteText);
		td.appendChild(span);
		span.appendChild(text);
		span.className = 'delete';
		this.safeObserve(span, 'click', this.onClickDelete.bindAsEventListener(this));
	},
	
	onClickAddRow : function(e) {
		var tr = document.createElement('tr');
		this.createTextBox(tr);
		this.createTextBox(tr);
		this.createTextBox(tr);
		this.createDeleteLink(tr);
		this.table.tBodies[0].appendChild(tr);
		this.personCount++;
	},
	
	onClickExpand : function(e) {
		var expanded = e.target.up().up().down('.expanded');
		var collapsed = e.target.up().up().down('.collapsed');
		expanded.setStyle({'display' : 'none'});
		collapsed.setStyle({'display' : 'block'});
	},
	
	updateIds : function() {
		var tr;
		this.personCountControl.value = this.personCount;
		for (var i=0; i<this.personCount; i++) {
			tr = this.table.tBodies[0].rows[i];
			Element.down(tr.cells[0], 'input').name = this.options.namePrefix + 'ml' + i;
			Element.down(tr.cells[1], 'input').name = this.options.namePrefix + 'fn' + i;
			Element.down(tr.cells[2], 'input').name = this.options.namePrefix + 'ln' + i;
		}
		return true;
	},
	
	onClickDelete : function(e) {
		var tr = e.target.up().up();
		if (this.personCount == 1)
		    tr.select('input').each(function(i) { i.value = ""; });
		else {
		    tr.parentNode.removeChild(tr);
		    this.personCount--;
		}
	}
});
//#REQUIRES DOMAttached
//#REQUIRES ShoutBoxSound

var ShoutBox = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		// If not logged in.		
		if (this.el.down('.lower') == undefined)
			return;

		this.shoutBtn = this.el.down('.lower').down('.send');
		this.shoutText = this.el.down('.lower').down('.inputBox').down(this.options.memberChat ? 'textarea' : 'input');

		this.safeObserve(this.shoutText, 'keypress', this.onKeydown.bindAsEventListener(this));
		this.safeObserve(this.shoutBtn, 'click', this.onClick.bindAsEventListener(this));
		this.disableShout = false;
	},
	
	onKeydown: function(ev) {
		if (ev.keyCode == 13 && !ev.shiftKey) {
			ev.stop();
			this.shout();
		} else if (ev.keyCode == 13) {
			// limit number of lines by 2
			var lineCount = 0;
			var str = this.shoutText.value;
			var pos = str.indexOf("\n");
			while (pos != -1) {
				++lineCount;
				pos = str.indexOf("\n",pos+1);
			}
			// 1 = {number of lines} - 1 = 2 - 1
			if (lineCount >= 1) {
				ev.stop();
				return;
			}
		}
		// limit total text length
		// 9 is the keycode of 'tabulator', a space consuming control sequence
		// 48 is the keycode of '0', the first non-control character
		// allow keyCodes smaller than that to allow backspace or similar control actions
		if (this.shoutText.value.length > 100 && (ev.keyCode >= 48 || ev.keyCode == 9))
			ev.stop();
	},
	
	onClick: function(ev) {
		this.shout();
		ev.stop();
	},
	
	shout: function() {
		if (this.shoutText.value.blank() || global.stopRequests || this.disableShout)
			return;

		var text = this.shoutText.value;
		this.shoutText.value = '';
		this.disableShout = true;

		var req = new Ajax.Request(this.options.shoutUrl, {
			method: 'post',
			onSuccess: this.shoutSuccess.bind(this),
			onException: this.shoutException.bind(this),
			onFailure: this.shoutFailure.bind(this),
			parameters: {
				Text:text
			}
		});
	},
	
	shoutSuccess: function(req) {
		this.disableShout = false;

		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}
		
		if (json.success) {
			if (this.shoutList == undefined)
				this.shoutList = this.el.down('.conversation').attachedList;
			this.shoutList.loadPage(0);
		} else {
			this.showException("Shout failed.");
		}
	},
	
	shoutFailure: function(req) {
		this.showException("Shout failed. HTTP status " + req.status);
		this.disableShout = false;
	},
	
	shoutException: function(req, e) {
		this.showException("Shout failed: " + e.message);
		this.disableShout = false;
	},
	
	showException: function(msg) {
		window.alert(msg);
	}
});
//#REQUIRES DOMAttached

var SlideshowAd = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.current = 0;
		if(options.imgIds.length > 1)
			this.animateSlide();
	},
	
	animateSlide: function() {
		setTimeout(this.nextSlide.bind(this), 4000);
	},

	nextSlide: function(ev) {
		var next = (this.current + 1) % this.options.imgIds.length;
		$(this.options.imgIds[this.current]).fade({
			queue: 'end'
		});
		$(this.options.imgIds[next]).appear({
			queue: 'end',
			afterFinish: this.animateSlide.bind(this)
		});
		this.current = next;
	}
});
//#REQUIRES DOMAttached

var SmileySelector = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.input = Element.down(options.controlFor, 'input') || Element.down(options.controlFor, 'textarea');
		
		this.list = this.el.down('ul.allSmileys');
		this.list.hide();
		this.safeObserve(this.list, 'click', this.onClick.bindAsEventListener(this));
		// preview list
		this.safeObserve(this.el.down('ul'), 'click', this.onClick.bindAsEventListener(this));
		
		var span = this.el.down('span');
		this.safeObserve(span, 'click', this.toggleSpan.bindAsEventListener(this));
		this.safeObserve(this.el.down('li.close'), 'click', this.toggleSpan.bindAsEventListener(this));
	},
	
	onClick: function(ev) {
		ev.stop();
		var img = ev.findElement('img');
		
		if (!img) {
			return;
		}
		
		var comment = this.input;
		var text = img.getAttribute('alt');
		var pos = this.getCaretPosition(comment);
		if (comment.value.charAt(pos-1) != ' ') {
			text = ' ' + text;
		}
		if (comment.value.charAt(pos) != ' ') {
			text = text + ' ';
		}
		comment.value = comment.value.substr(0,pos) + text + comment.value.substr(pos);
		this.setCaretPosition(comment, pos+text.length);
	},
	
	toggleSpan: function(ev) {
		this.list.toggle();
	},
	
	getCaretPosition: function(element) {
	    var caretPos = 0;
	    // bad browser
	    if (document.selection) {
	        element.focus();
	        var selection = document.selection.createRange ();
	        selection.moveStart ('character', -element.value.length);
	        caretPos = selection.text.length;
	    }
	    // good browser
	    else if (element.selectionStart || element.selectionStart == '0') {
	        caretPos = element.selectionStart;
	    }

	    return caretPos;
	},
	
	setCaretPosition: function(element, pos){
	    if(element.setSelectionRange) {
	        element.focus();
	        element.setSelectionRange(pos,pos);
	    } else if (element.createTextRange) {
	        var range = element.createTextRange();
	        range.collapse(true);
	        range.moveEnd('character', pos);
	        range.moveStart('character', pos);
	        range.select();
	    }
	}
});
//#REQUIRES DOMAttached
var TabbedApplication = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.el.attachedObj = this;
		
		this.tabs = $$('.tabappTab');
		this.links = options.tabLinks;
		this.content = this.el.down('.contentPane');
		this.currentTab = this.tabs[0];
		this.currentTab.addClassName('selected');
		
		for (var i = 0; i < this.tabs.length; i++)
			this.safeObserve(this.tabs[i], 'click', this.loadTab.bindAsEventListener(this, i));
			
		this.registerLinks();
		
		if (this.options.defaultPage != undefined)
			this.loadPage(this.options.defaultPage);
	},
	
	registerLinks: function() {
		var links = this.el.down('.contentPane').getElementsBySelector('a.tabLink');
		
		for (var i = 0; i < links.length; i++)
			this.safeObserve(links[i], 'click', this.onClickLink.bindAsEventListener(this, links[i].href));
	},
	
	onClickLink: function(ev, url) {
		ev.stop();
		this.loadPage(url);
	},
	
	registerTimer: function(timer) {
		this.timer = timer;
	},
	
	registerInterval: function(interval) {
		this.interval = interval;
	},
	
	loadPage: function(url) {
		this.showProgressIndicator();
		
		if (this.timer != undefined) {
			try {
				clearTimeout(this.timer);
			} finally {
				this.timer = undefined;
			}
		}
		
		if (this.interval != undefined) {
			try {
				clearInterval(this.interval);
			} finally {
				this.interval = undefined;
			}
		}
		
		var req = new Ajax.Request(url, {
			method: 'get',
			onSuccess: this.onPageLoaded.bind(this),
			onException: this.onPageLoadException.bind(this),
			onFailure: this.onPageLoadException.bind(this)
		});	
	},
	
	loadTab: function(event, index) {
		this.selectTab(index);
		this.loadPage(this.links[index]);
	},
	
	findAndLoadTab: function(url) {
		for (var i = 0; i < this.links.length; i++) {
			if (this.links[i] == url) {
				this.loadTab(null, i);
				return;
			}
		}
	},
	
	selectTab: function(index) {
		this.currentTab.removeClassName('selected');
		this.tabs[index].addClassName('selected');
		this.currentTab = this.tabs[index];	
	},
	
	activatePlaceholder: function(name, caption, url) {
		for (var i = 0; i < this.tabs.length; i++) {
			if (this.tabs[i].identify().endsWith('_' + name)) {
				this.tabs[i].innerHTML = caption;
				this.links[i] = url;

				this.tabs[i].style.display = 'block';
				this.selectTab(i);
				break;
			}
		}
	},
	
	onPageLoadException : function(req, ex) {
		alert(ex.message);
		//TODO: Proper error handling
		this.content.innerHTML = '<b>Could not load page. Try again!</b>';
		
		this.hideProgressIndicator();
	},
	
	onPageLoaded : function(req) {
		try {
			var json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}
		
		if (json.success) {
			if (json.successpopup != undefined) {
				this.el.down('.popupContainer').attachedObj.showContent(json.successpopup);
				this.hideProgressIndicator();
				return;
			}
			
			this.content.innerHTML = json.page;
			this.content.innerHTML.evalScripts();
			this.registerLinks();
		} else {
			//Does it come with a message popup?
			if (json.errorpopup != undefined) {
				this.el.down('.popupContainer').attachedObj.showContent(json.errorpopup);
				this.hideProgressIndicator();
				return;
			}
			
			//TODO: Proper error handling
			this.content.innerHTML = '<b>Could not load page. Try again!</b>';
		}
		
		this.hideProgressIndicator();
	}
});

TabbedApplication.addMethods(ProgressIndicatingControl);//#REQUIRES DOMAttached

var TabPopupMenu = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		Element.extend(this.el);
		this.hide();
		this.options.attachTo = $(this.options.attachTo);
		this.safeObserve(this.options.attachTo, 'mouseover', this.onAttMouseOver.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseover', this.onAttMouseOver.bindAsEventListener(this));
		this.safeObserve(this.options.attachTo, 'mouseout', this.onAttMouseOut.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseout', this.onAttMouseOut.bindAsEventListener(this));
		
		this.reparented = false;
			
		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.options.attachTo = null;
	},
	
	onAttMouseOver: function(ev) {
		if (!this.visible) {
			this.show();
		} else {
			if (this.hideTimer)
				clearTimeout(this.hideTimer);
				this.hideTimer = undefined;
		}
	},
	
	onAttMouseOut: function(ev) {
		if (!this.hideTimer) {
			this.hideTimer = setTimeout(this.hide.bind(this), 1000);
		}
	},
	
	show: function() {
		if (!this.reparented) {
			this.el.remove();
			global.getToplevelElement().appendChild(this.el);
			this.reparented = true;
		}
		var attPos = this.options.attachTo.cumulativeOffset();
		var attDim = this.options.attachTo.getDimensions();
		this.el.setStyle({
			left: (attPos.left + (attDim.width - this.el.getWidth()) / 2).round() + 'px',
			top: (attPos.top + attDim.height) + 'px'
		});
		this.el.show();
		this.visible = true;

		if (global.currentlyActiveTabPopup)
			global.currentlyActiveTabPopup.hide();
		global.currentlyActiveTabPopup = this;
	},
	
	hide: function() {
		this.el.hide();
		this.visible = false;
		if (this.hideTimer)
			clearTimeout(this.hideTimer);
		this.hideTimer = undefined;
		global.currentlyActiveTabPopup = undefined;
	}
});
//#REQUIRES DOMAttached
//#REQUIRES ProgressIndicatingControl

var TagCloud = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.tags = Array();
		this.tagDisplay = this.el.up().down('.searchPhrases');
		
		//YAL: All lists are initialized with a base height to make them look better during loading
		this.el.style.height = "128px";
        
		global.registerTagCloud(this);
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		this.safeObserve(this.tagDisplay, 'click', this.onClickRemove.bindAsEventListener(this));
	},
	
	onClickRemove: function(ev) {
		var span = ev.findElement('span');
		if (span == undefined) {
			return;
		}
		var tag = span.innerHTML.replace('(x)','');
		this.tags = this.tags.without(tag);
		var postingList = global.findTagSearchableList();
		if (postingList) {
			postingList.removeTag(tag);
		}
	},
    
	onClick: function(ev) {
		var li = ev.findElement('li');
		if (li == undefined) {
			return;
		}
		var postingList = global.findTagSearchableList();
		if (postingList) {
			var tag = li.innerHTML;
			this.tags.push(tag);
			postingList.addTag(tag);
		}
	},
	
	showTags: function() {
		var first = true;
		this.tagDisplay.update('');
		this.tags.each((function(el) {
			var newSpan = Builder.node('span', { className: 'searchPhraseCancel' }, el + '(x)');
			newSpan.phrase = el;
			if (first)
				first = false;
			else
				this.tagDisplay.innerHTML += ', ';
			this.tagDisplay.appendChild(newSpan);
		}).bind(this));
		
		//YAL: Determine height automatically after loading
		this.el.style.height = "";
	},
	
	preUpdate: function() {
		this.showProgressIndicator();
	},
    
	update: function(html) {
		this.el.update(html);
		this.showTags();
    this.hideProgressIndicator();
	}
});
TagCloud.addMethods(ProgressIndicatingControl);//#REQUIRES DOMAttached

var UniversalSearch = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
				
		if (this.options.searchBoxGadget == 'undefined' || this.options.searchBoxGadget == true) {
			this.button = this.el.down('.universalSearchBtn');
			this.textbox = this.el.down('input');
			this.select = this.el.down('select');
			this.safeObserve(this.button, 'click', this.onClick.bindAsEventListener(this));
			this.safeObserve(this.textbox, 'keypress', this.onKeypress.bindAsEventListener(this));
		} else {
			this.searchBox = $('mainContent').down('.universalSearch');
			this.searchBox.down('input').value = this.options.searchPhrase;
			this.searchBox.down('select').value = this.options.searchType;
		}
	},
	
	onKeypress: function(ev) {
		if (ev.keyCode == 13) {
			ev.stop();
			this.onClick();
		}
	},
	
	onClick : function() {
		var text = this.textbox.value.strip();
		
		if (text.length != 0) {
			var url = this.options.url.replace("PLH_searchType", this.select.value).replace("PLH_searchPhrase", text);
			
			window.location.href = url;
		}
	}
});
//#REQUIRES PostingListItemDetailsLoader
//#REQUIRES DOMAttached

var VendorDetails = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);
		
		this.safeObserve(this.el.down('.details'), 'click', this.Show.bindAsEventListener(this));
	},

	onPopupFailure: function(req) {
		alert('Vendor Contact Details could not be loaded.');
	},
	
	onPopupLoaded: function(req) {
		this.ShowDetails(req);
	},
	
	Show: function(event) {
		global.showBackdropProgressIndicator();	
		
		var req = new Ajax.Request(this.options.ajajUrl, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this),
			onException: this.onPopupFailure.bind(this),
			onFailure: this.onPopupFailure.bind(this)
		});
	},
	
	ShowDetails : function(req) {
		this.loader = new PostingListItemDetailsLoader();
		this.loader.onDetailsLoaded(req);	
	}
});
//#REQUIRES DOMAttached

var VirtualCurrencyViewer = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.el = $(el);
		this.transactions = this.el.down('.virtualCurrencyViewerTransactions');
		this.link = this.el.down('.virtualCurrencyViewerShowTransactions');
		if (this.transactions)
			this.transactions.hide();
		if (this.link){
			this.safeObserve(this.link, 'click', this.show.bindAsEventListener(this));
		}
	},
	
	show: function(ev) {
		this.transactions.show();
		this.link.removeClassName('link');
		this.stopObserve(this.link, 'click');
	}
	
});
//#REQUIRES DOMAttached

var Watermark = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.el = this.el.down('input');
		this.safeObserve(this.el, 'focus', this.onFocus.bindAsEventListener(this));
		this.safeObserve(this.el, 'blur', this.onBlur.bindAsEventListener(this));
		this.watermark = new Element('span', { 'class' : 'watermark' }).update(this.options.text).setStyle({'display' : 'none'});
		this.safeObserve(this.watermark, 'click', this.onFocus.bindAsEventListener(this));
		this.safeObserve(this.watermark, 'doubleclick', this.onFocus.bindAsEventListener(this));
		Element.insert(this.el, {before: this.watermark });
		this.onBlur('');
	},
	
	onBlur: function(ev) {
    if (this.watermark.getStyle('display') == 'none' && this.el.value == '') {
        this.watermark.setStyle({'display' : 'inline'});
    }
	},
    
	onFocus: function(ev) {
		if (!this.el.disabled) {
			this.watermark.setStyle({'display' : 'none'});
			this.el.focus();
		}
	}
});
//#REQUIRES DOMAttached

var Window = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.safeObserve(window, 'keypress', this.onKeyPress.bindAsEventListener(this));
		this.uniqueId = 1;
		this.escapeHandlers = new Hash();
	},
	
	onKeyPress: function(ev) {
		if (ev.keyCode == 27) {
			if (this.performEscapeActions())
				ev.stop();
		}
	},
	
	performEscapeActions: function() {
		var res = false;
		this.escapeHandlers.each(function(eh) {
			eh.value();
			res = true;
		});
		return res;
	},
	
	registerEscapeHandler: function(fn) {
		this.escapeHandlers.set(this.uniqueId, fn);
		return this.uniqueId++;
	},
	
	unregisterEscapeHandler: function(id) {
		this.escapeHandlers.unset(id);
	}
});
//#REQUIRES DOMAttached
var YoutubeChromelessPlayer = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.el.ytcp=this;
		
		this.startstop=$(this.options.startstop);
		this.muteunmute=$(this.options.muteunmute);
		this.progressbar=$(this.options.progressbar);
		this.time=$(this.el).down(".time");
		
		this.safeObserve(this.startstop, 'click', this.onStartStop.bindAsEventListener(this));
		this.safeObserve(this.muteunmute, 'click', this.onMuteUnmute.bindAsEventListener(this));
		this.safeObserve(this.progressbar, 'click', this.onProgClick.bindAsEventListener(this));
		
		this.onYouTubePlayerReady.bind(this);
			
		var params = { allowScriptAccess: "always" , wmode: "transparent"};
		var atts = { id: "myytplayer" };
		swfobject.embedSWF("http://www.youtube.com/apiplayer?enablejsapi=1&playerapiid=ytplayer",this.options.swfTarget, "480", "385", "8", null, null, params, atts);
	},
	
	onStartStop: function(ev) {
		if(this.ytplayer.getPlayerState()==0){
			this.ytplayer.seekTo(0,true);
			this.ytplayer.playVideo();
		}else if(this.ytplayer.getPlayerState()==2 || this.ytplayer.getPlayerState()==5){
			this.ytplayer.playVideo();
		}else{
			this.ytplayer.pauseVideo();
		}
	},
	
	onMuteUnmute: function(ev) {
		if(!this.ytplayer.isMuted()){
			this.ytplayer.mute();
		}else{
			this.ytplayer.unMute();
		}
		this.updateMuteBtn();
	},
	
	updateMuteBtn: function(){
		if(this.ytplayer.isMuted()){
			this.muteunmute.down().addClassName("unmute");
			this.muteunmute.down().removeClassName("mute");
		}else{
			this.muteunmute.down().removeClassName("unmute");
			this.muteunmute.down().addClassName("mute");
		}
	},
	
	onYouTubePlayerReady: function(playerId){
		this.ytplayer = $("myytplayer");
		this.ytplayer.addEventListener("onStateChange", "onYtplayerStateChange");
		this.ytplayer.addEventListener("onError", "onYtplayerError");
		this.ytplayer.cueVideoById(this.options.vid_hash,0);
		
		this.updateMuteBtn();
		
		this.updater=new PeriodicalExecuter(this.updateLoad.bind(this), 0.3);
	},
	
	onYtplayerStateChange: function(newstate){
		if(newstate==-1){//unstarted
			
		}else if(newstate==0){//ended
			this.startstop.down().removeClassName("stop");
			this.startstop.down().addClassName("start");
		}else if(newstate==1){//playing
			this.startstop.down().removeClassName("start");
			this.startstop.down().addClassName("stop");
		}else if(newstate==2){// paused
			this.startstop.down().removeClassName("stop");
			this.startstop.down().addClassName("start");
		}else if(newstate==3){//buffering
			
		}else if(newstate==5){//cued
			this.startstop.down().removeClassName("stop");
			this.startstop.down().addClassName("start");
		}
	},
	
	onYtplayerError: function(errcode){
		switch(errcode){
			case 100:
			 alert(this.options.error_100);
			 break;
			case 101:
			case 150:
			 alert(this.options.error_101);
			 break;
			default:
			 alert("unknown yt error: "+errcode);
		}
	},
	
	onProgClick: function(ev){
		if(this.ytplayer.getPlayerState()==-1)
			return;
		var xp=ev.layerX;
		var xtot=ev.currentTarget.getWidth();
		var seekPos=Math.round(this.ytplayer.getDuration()*xp/xtot);
		this.ytplayer.seekTo(seekPos,true);
	},
	
	updateLoad: function(){
		var btot=this.ytplayer.getVideoBytesTotal();
		var bload=this.ytplayer.getVideoBytesLoaded();
		if(btot==-1){
			this.progressbar.down(".loaded").style.width="0%";
		}else{
			this.progressbar.down(".loaded").style.width=Math.round(bload*100.0/btot)+"%";
		}
		var ttot=this.ytplayer.getDuration();
		var tcurr=this.ytplayer.getCurrentTime();
		if(ttot<=0.0){
			this.progressbar.down(".pos").style.width="0%";
			this.time.down(".curr").innerHTML="-";
			this.time.down(".tot").innerHTML="-";
		}else{
			this.progressbar.down(".pos").style.width=Math.round(tcurr*100.0/ttot)+"%";
			this.time.down(".curr").innerHTML=global.mmss(tcurr);
			this.time.down(".tot").innerHTML=global.mmss(ttot);;
		}
	}
	
});

function onYouTubePlayerReady(playerId) {
	$("myytplayer").up().ytcp.onYouTubePlayerReady(playerId);
}

function onYtplayerStateChange(newstate){
	$("myytplayer").up().ytcp.onYtplayerStateChange(newstate);
}

function onYtplayerError(newstate){
	$("myytplayer").up().ytcp.onYtplayerError(newstate);
}//#REQUIRES DOMAttached
var YoutubeSelector = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.dropTarget=this.el.down(".droptarget");
		this.safeObserve(this.dropTarget, 'drop', this.onDropIE.bindAsEventListener(this));
		this.safeObserve(this.dropTarget, 'dragover', this.resetEventIE.bindAsEventListener(this));
		this.safeObserve(this.dropTarget, 'dragenter', this.resetEventIE.bindAsEventListener(this));
	},
		
	onDropIE: function(ev){
		this.dropTarget.value=(window.event.dataTransfer.getData("URL"));
		this.onVidLinkChange();
	},
	
	resetEventIE: function(ev){
		window.event.returnValue = false;
	},
	
	onVidLinkChange: function(){
		alert("here");
	}	
	
});
//#REQUIRES DOMAttached
var YoutubeSuggest = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.btn=$(this.el).down("input[type=submit]");
		this.txt=$(this.el).down("textarea");
		this.img=document.createElement("img");
		this.img.src="/img/ajax-loader-lite.gif";
		this.container=$(this.el).up(".container");
		this.safeObserve(this.btn, 'click', this.onSend.bindAsEventListener(this));
		this.safeObserve(this.txt, 'click', this.onTxtClck.bindAsEventListener(this));
	},
	
	onSend: function(ev){
		ev.stop();
		var url=this.options.postbck.replace("PLH_nytus",encodeURIComponent(this.txt.value));
		var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onSucc.bind(this),
			onException: this.onFail.bind(this),
			onFailure: this.onFail.bind(this)
		});
		this.container.update("");
		this.container.appendChild(this.img);
	},
	
	onFail: function(req){
		alert("fail:"+req);
	},
	
	onSucc: function(req){
		var json = req.responseText.evalJSON();
		this.container.update(json.result);
	},
	
	onTxtClck: function(ev){
		if(this.txt.hasClassName("tiny")){
			this.txt.removeClassName("tiny");
		}
	}
	
});
//#REQUIRES DOMAttached

var DocumentUpload = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.add = this.el.down('.add');
		this.maxAttachments = this.options.maxAttachments;
		this.remAttachment = this.options.remAttachment;
		this.reAddAttachment = this.options.reAddAttachment;
		
		this.safeObserve(this.add, 'click', this.addDocument.bindAsEventListener(this));
		this.el.select('.remove').each(function(el) { 
			this.safeObserve(el, 'click', this.removeAttachmentClick.bindAsEventListener(this));
		}.bind(this) );
		this.el.select('.keep').each(function(el) { 
			this.safeObserve(el, 'click', this.updateDocumentTable.bindAsEventListener(this));
		}.bind(this) );
		this.updateDocumentTable();
	},
	
	addDocument : function(ev) {
		var collapsed = this.el.down('li.collapsed');
		collapsed.removeClassName('collapsed');
		collapsed.down('.hiddenField').value = 'yes';
		this.updateDocumentTable();
	},
	
	removeAttachmentClick : function(ev) {
		var upload = ev.target.up().down('.upload');
		var hidden = ev.target.up().down('.hiddenField');
		var remove = ev.target.up().down('.remove');
		
		var newIsUpload = upload.hasClassName('collapsed');
		if (newIsUpload) {
			upload.removeClassName('collapsed');
			hidden.value = 'yes';
			remove.firstChild.data = this.remAttachment;
		} else {
			upload.addClassName('collapsed');
			hidden.value = 'no';
			remove.firstChild.data = this.reAddAttachment;
		}
		this.updateDocumentTable();
	},
	
	countDocuments : function() {
		var docs = 0;
		// count checked existing documents
		this.el.select('.keep').each(function(e) { if (e.checked) ++docs; });
		// count visible upload files
		this.el.select('.hiddenField').each(function(e) { if (e.value == 'yes') ++docs; });
		return docs;
	},
	
	updateDocumentTable : function() {
		var doc_cnt = this.countDocuments();
		var new_doc_poss = doc_cnt < this.max_attachments;
		// set checkboxes
		this.el.select('.keep').each(function(e) { if (!e.checked) e.disabled = !new_doc_poss; });
		// set 'more' button
		var remVisible = 0;
		this.el.select('.hiddenField').each(function(e) { 
			if (e.value == 'no' && !e.up().hasClassName('collapsed')) 
				++remVisible;
		});
		
		var invisible = this.add.hasClassName('collapsed');
		if (doc_cnt + remVisible < this.maxAttachments) {
			if (invisible) {
				this.add.removeClassName('collapsed');
			}
		} else {
			if (!invisible) {
				this.add.addClassName('collapsed');
			}
		}
	}
});
//#REQUIRES DOMAttached

var DatePicker = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.parseRe = new RegExp('(\\d+)[\\./;,]\\s*(\\d+)[\\./;,](?:\\s*(\\d+))?');


		this.input = this.el.down('input');
		this.cal = this.el.down('.pickerCalendar');
		Element.extend(this.cal);
		this.head = this.el.down('h3');
		this.prev = this.el.down('.prevBtn');
		this.next = this.el.down('.nextBtn');
		
		this.cal.hide();
		this.calShown = false;
		this.cal.remove();
		global.getToplevelElement().appendChild(this.cal);

		this.curDate = this.parseDate(this.options.currentDate);
		this.fillInputBox(this.curDate);
		if (!this.curDate)
			this.curDate = new Date();
		
		this.safeObserve(this.cal, 'click', this.onCalClick.bindAsEventListener(this));
		this.safeObserve(this.prev, 'click', this.onPrev.bindAsEventListener(this));
		this.safeObserve(this.next, 'click', this.onNext.bindAsEventListener(this));
		this.safeObserve(this.prev, 'doubleclick', this.onPrev.bindAsEventListener(this));
		this.safeObserve(this.next, 'doubleclick', this.onNext.bindAsEventListener(this));
		this.safeObserve(this.input, 'focus', this.onFocus.bindAsEventListener(this));
		this.safeObserve(this.input, 'blur', this.onBlur.bindAsEventListener(this));
		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.cal = null;
	},
	
	onBlur: function(ev) {
		// set timeout so that onPrev and onNext can set flag to stop blur-event
		window.setTimeout(this.hide.bind(this), 200);
	},
	
	hide: function() {
		if (this.dontHide) {
			this.dontHide = false;
		} else {
			this.curDate = this.parseDate(this.input.value);
			this.fillInputBox(this.curDate);
			this.calShown = false;
			this.cal.hide();
		}
	},
	
	onPrev: function(ev) {
		if (!this.curDate) {
			this.curDate = new Date();
		}
		if (!this.options.allowPastDates) {
			var d = new Date(this.curDate.getFullYear(), this.curDate.getMonth(), 1);
			d.setDate(-1);
			if (d < new Date())
				return;
		}
		this.curDate.setMonth(this.curDate.getMonth()-1);
		this.fillCalendar(this.curDate);
		this.dontHide = true;
	},
	
	onNext: function(ev) {
		if (!this.curDate) {
			this.curDate = new Date();
		}
		this.curDate.setMonth(this.curDate.getMonth()+1);
		this.fillCalendar(this.curDate);
		this.dontHide = true;
	},
	
	fillInputBox: function(date) {
		if (date) {
			this.input.value = this.options.dayNames[date.getDay()] + ", ";
			this.input.value += date == null
				? ""
				: this.options.datePattern.
					replace(/M+/, date.getMonth()+1).
					replace(/d+/, date.getDate()).
					replace(/y+/, date.getFullYear());
		} else {
			this.input.value = "";
		}
	},
	
	fillCalendar: function(date) {
		var present = new Date();
		present = new Date(present.getFullYear(), present.getMonth(), present.getDate());

		var d = new Date(date.getFullYear(), date.getMonth(), 1);
		var skip = d.getDay();
		this.cal.select('td').each((function(td) {
			if (skip) {
				td.day = undefined;
				td.update();
				--skip;
				return;
			}
			if (d.getMonth() == date.getMonth() && (this.options.allowPastDates || (d >= present))) {
				td.update(d.getDate().toString());
				td.day = d.getDate();
				td.month = d.getMonth();
				td.year = d.getFullYear();
				d.setDate(d.getDate() + 1);
			} else {
				td.day = undefined;
				td.update();
				d.setDate(d.getDate() + 1);
			}
		}).bind(this));
		this.head.update(this.options.monthNames[date.getMonth()] + " " + date.getFullYear());
	},
	
	showCal: function() {
		var cdims = Element.getDimensions(this.cal);
		var ipos = Element.cumulativeOffset(this.input);
		var idims =  Element.getDimensions(this.input);
		Element.setStyle(this.cal, {
			left: (ipos.left + idims.width) + 'px',
			top: (ipos.top) + 'px'
		});
		this.fillCalendar(this.curDate == null ? new Date() : this.curDate);
		this.cal.show();
	},
	
	onFocus: function(ev) {
		if (!this.calShown) {
			this.calShown = true;
			this.showCal();
		}
	},
		
	onCalClick: function(ev) {
		var td = ev.findElement('td');
		if (td && td.day) {
			ev.stop();
			this.fillInputBox(new Date(td.year, td.month, td.day));
			this.calShown = false;
			this.cal.hide();
		}
	},
	
	parseDate: function(str) {
		var groups = this.parseRe.exec(str);
		if (!groups)
			return null;

		var year = (new Date()).getFullYear();
		var month;
		var day;
		if (this.options.firstNumIsDay) {
			day = parseInt(groups[1]);
			month = parseInt(groups[2]) - 1;
		} else { 
			day = parseInt(groups[2]);
			month = parseInt(groups[1]) - 1;
		}	
		if (groups.length == 4)
			year = parseInt(groups[3]);
		var res = new Date(year, month, day);

		var present = new Date();
		present = new Date(present.getFullYear(), present.getMonth(), present.getDate());
		if (!this.options.allowPastDates && (res < present)) {
			res = new Date();
		}
		return res;
	}
});
//#REQUIRES DOMAttached

var CurrencyExplanation = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);
		this.link = this.el.down('.link');
		this.explanation = this.el.down('.explanation');
		this.safeObserve(this.link, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onClick : function(e) {
		this.explanation.removeClassName('collapsed');
		this.link.removeClassName('link');
		this.stopObserve(this.link, 'click');

	}
});

/*
 * CSS coach for stupid browsers
 */
var CSSCoach = {
	rules: undefined,
	numRules: 0,
	numRulesReal: 0,
	numNodes: 0,
	numMaxRules: 0,
	lastInterestingRule: '',
	lastInterestingRuleIdentifier: '',
	lastInterestingRuleAppliedRules: undefined,
	profile: new Hash(),
	
	takeStartTime: function(key) {
		CSSCoach.profile.set(key, new Date().getTime());
	},
	
	takeEndTime: function(key) {
		CSSCoach.profile.set(key, new Date().getTime() - CSSCoach.profile.get(key));
	},
	
	takeIntermediateTime: function(key) {
		CSSCoach.takeEndTime(key);
		CSSCoach._incrementValue(key + "_total", CSSCoach.profile.get(key));
	},
	
	_incrementValue: function(key, delta) {
		if (!CSSCoach.profile.get(key))
			CSSCoach.profile.set(key, delta);
		else
			CSSCoach.profile.set(key, delta + CSSCoach.profile.get(key));
	},
	
	countCall: function(key) {
		CSSCoach._incrementValue(key, 1);
	},
	
	profileOutput: function() {
		var msg = '';
		CSSCoach.profile.keys().each(function(att) {
			msg += att + ": " + CSSCoach.profile.get(att) + "ms\n";
		});
		return msg;
	},
	
	applyCSS: function(el, caller) {
		CSSCoach.takeStartTime('CSSCoachOverall');
		
		if (CSSCoach.rules == undefined) {
			var filename = "";
			Element.down(document.documentElement, 'head').select('meta').each(function (meta) {
				if (meta.readAttribute('name') == 'cssJson') {
					filename = meta.readAttribute('content');
				}
			});

			var req = new Ajax.Request(filename, {
				method: 'get',
				onSuccess: function(req) { CSSCoach.applyCSSCode(req, el); },
				/*
 				 * Who cares about an exception here...? 
				 */
				onException: function() {}
				/*
				onException: (function(req, e) { window.alert("CSS Coach: " + e.message + "\n" + Object.toJSON(e)); })
				*/
			});
		} else {
			CSSCoach.applyCSSCode(null, el);
		}
	},
		
	applyCSSCode: function(req, el) {
		if (!CSSCoach.queue)
			CSSCoach.queue = [];
		CSSCoach.queue.push([req, el]);
		if (!CSSCoach.workerRunning)
			CSSCoach.worker();
	},
	
	worker: function() {
		CSSCoach.workerRunning = true;

		var req; var el;
		if (CSSCoach.currentJob) {
			req = CSSCoach.currentJob.req;
			el = CSSCoach.currentJob.el;
		} else if (CSSCoach.queue.length > 0) {
			var cur = CSSCoach.queue.shift();
			req = cur[0];
			el = cur[1];
			CSSCoach.currentJob = {
				req: req,
				el: el
			};

			if (CSSCoach.rules == undefined && req != null) {
				CSSCoach.rules = eval("(" + req.responseText + ")");
			}
		
			CSSCoach.numNodes = 0;
			CSSCoach.numRules = 0;
			CSSCoach.numRulesReal = 0;
			CSSCoach.numMaxRules = 0;

			CSSCoach.workingCssRules = CSSCoach.rules.interestingRules.clone();
		} else {
			CSSCoach.workerRunning = false;
			CSSCoach.currentJob = undefined;
			CSSCoach.workingCssRules = undefined;
			CSSCoach.takeEndTime('CSSCoachOverall');
			
			// Append a dummy element to the DOM tree to force IE6 to update its Display
			document.body.appendChild(Builder.node('div'));
			
			global.CSSCoachDone();
			
			//alert("   JavaScript Performance Profiler   \n\n" + CSSCoach.profileOutput());
			return;
		}

		if (CSSCoach.workingCssRules.length > 0) {
			var rule = CSSCoach.workingCssRules.shift();

			CSSCoach.lastInterestingRuleAppliedRules = undefined;
			CSSCoach.lastInterestingRule = rule;
			var id;
			var _rules;
			var identifier;
			var lastParent = null;
			CSSCoach.takeStartTime("select");
			var selectedElements = Element.select(el, rule);
			CSSCoach.takeIntermediateTime("select");
			for (var i = 0, l = selectedElements.length; i < l; ++i) {
				var node = selectedElements[i];
				++CSSCoach.numNodes;
								
				_rules = CSSCoach.numRulesReal;
				CSSCoach._checkInnerRules(node, CSSCoach.rules);
				if (CSSCoach.numRulesReal - _rules > CSSCoach.numMaxRules) {
					CSSCoach.numMaxRules = CSSCoach.numRulesReal - _rules;
					//alert(rule + " --> " + CSSCoach.numMaxRules);
				}
			}
			
		} else {
			CSSCoach.workingCSSRules = undefined;
			CSSCoach.currentJob = undefined;
		}
		
		setTimeout(CSSCoach.worker, 1);
	},
	
	innerWorker: function() {
	},
	
	_applyRules : function(el, rules) {
		var rulesToApply = [];
		for (var i = 0; i < rules.length; i += 2) {
			var rule = rules[i];			
			++CSSCoach.numRulesReal;
			CSSCoach.countCall("matchCall");
			CSSCoach.takeStartTime("match");
			if (rule(el)) {
				rulesToApply.push(rules[i+1]);
			}
			CSSCoach.takeIntermediateTime("match");
		}
		return rulesToApply;
	},
	
	_checkInnerRules : function(cur, allRules) {
		var myRules = [];
		++CSSCoach.numRules;
		//alert(CSSCoach.lastInterestingRuleIdentifier + " from rule " + CSSCoach.lastInterestingRule);
		
		// gather rules by tagname, class, id and 'all'-selector
		// and sort them by specificity
		var check = allRules.all;
		if (check) {
			myRules = myRules.concat(CSSCoach._applyRules(cur, check));
		}
		check = allRules.tags[cur.tagName.toLowerCase()];
		if (check) {
			myRules = myRules.concat(CSSCoach._applyRules(cur, check));
		}
		$w(cur.className).each(function(clazz) {
			check = allRules.classes[clazz];
			if (check) {
				myRules = myRules.concat(CSSCoach._applyRules(cur, check));
			}
		});
		if (cur.id) {
			check = allRules.ids[cur.id];
			if (check) {
				myRules = myRules.concat(CSSCoach._applyRules(cur, check));
			}
		}
		myRules.sort();
		var dummy = [];
		var lastRule = -1;
		for (var i = 0; i < myRules.length; ++i) {
			var r = myRules[i];
			if (r == lastRule)
				continue;
			dummy.push(allRules.rulesSorted[r]);
			lastRule = r;
		}
		myRules = dummy;
		
		for (var i = 0; i < myRules.length; ++i) {
			Element.setStyle(cur, myRules[i])
		}
		
		// clean up
		myRules = undefined;
	}
};//#REQUIRES DOMAttached

var CookieCheck = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);
		if (navigator.cookieEnabled && document.cookie.length > 0) {
			this.el.hide();
		}
	}
});

//#REQUIRES DOMAttached

var ControlMultiplier = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		var addLink = this.el.down('.add');
		this.safeObserve(addLink, 'click', this.onAddClick.bindAsEventListener(this));
		
		this.allMultiplieds = this.el.down('.allMultiplieds');
		this.singleMultipliedPrototype = this.el.down('.singleMultiplied').cloneNode(true);
	},
	
	onAddClick : function(ev) {
		this.allMultiplieds.appendChild(this.singleMultipliedPrototype.cloneNode(true));
	}
});
//#REQUIRES DOMAttached

var Collapser = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.collapsedIds = this.options.collapsedIds.split(' ');
		this.afterwardsIds = this.options.afterwardsIds.split(' ');
		this.link = this.el.down('.collapserLink');
		
		this.safeObserve(this.link, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onClick : function(ev) {
		this.afterwardsIds.each(function(id) {
			$(id).addClassName('collapsed');
		});
		
		this.collapsedIds.each(function(id) {
			$(id).removeClassName('collapsed');
		});
	}
});
//#REQUIRES DOMAttached

/*
 * (side) menu items
 */
var CollapsableMenu = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.sublist = this.el.down('ul');
		this.sublist.style.display = 'none';
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		// remove the script block in order to not affect li + li CSS selectors.
		if (this.el.next('script'))
			this.removeElement(this.el.next('script'));
	},
	
	onClick: function(ev) {
		if (ev.findElement('a'))
			return;
	  if (this.blindEff && this.blindEff.state != 'finished')
			return;
		if (this.el.hasClassName('collapsed')) {
			this.el.removeClassName('collapsed');
			this.blindEff = new Effect.BlindDown(this.sublist, {duration:.5, queue:'end'});
		} else {
			this.el.addClassName('collapsed');
			this.blindEff = new Effect.BlindUp(this.sublist, {duration:.5, queue:'end'});
		}
	}
});

//#REQUIRES DOMAttached

var CloseButton = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el,options);
		this.safeObserve(this.el.down(".TriggerControl"),"click", this.onClick.bindAsEventListener(this))
	},
	
	onClick: function(ev){
		var ids=this.options.ids.split(",");
		for(var i=0;i<ids.length;i++){
			var el=$(ids[i]);
			el.style.display="none";
			Element.remove(el);
		}
	}
});

//#REQUIRES DOMAttached

ClickCounterDisplay = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.safeObserve(document, "document:allSet", this.showCount.bindAsEventListener(this));
		
		if (global.counterList == undefined)
			global.counterList = [];
		global.counterList.push(this);
		
		this.exclusive = false;
		if (this.el.next('script'))
			this.removeElement(this.el.next('script'));
	},
	
	onMouseOver: function(ev) {
		if (!this.exclusive) {
			this.exclusive = true;
			this.pic.down('.name').show();
			global.counterList.each(function(el) {
				if (!el.exclusive&&el.pic)
					el.pic.hide();
			});
		}
		this.reposition();
	},
	
	onMouseOut: function(ev) {
		this.pic.down('.name').hide();
		global.counterList.each(function(el) {
			/*
			if (el.visibility)
				el.pic.show();
			else
				el.pic.hide();
			*/
			el.reposition();
		});
		this.exclusive = false;
		this.reposition();
	},
	
	showCount: function() {
		if (this.pic == undefined) {
			var counterName = this.options.counterName.replace("_", " ", "g");
			this.pic = Builder.node('div', { className:'clickCounterDisplay' }, [ Builder.node('span', { className:'name' }, [ counterName, Builder.node('br') ]), this.options.count ]);
			global.getToplevelElement().appendChild(this.pic);
			this.safeObserve(this.pic, "mouseover", this.onMouseOver.bindAsEventListener(this));
			this.safeObserve(this.pic, "mouseout", this.onMouseOut.bindAsEventListener(this));
		}

		if (!this.exclusive)
			this.pic.down('.name').hide();
		
		this.reposition();
	},
	
	reposition: function(ev) {
		if(this.pic) {
		    var attPos = this.el.cumulativeOffset();
		    var attDim = this.el.getDimensions();
		    this.pic.setStyle({
			    left: (attPos.left - this.pic.getWidth()) + 'px',
			    top: (attPos.top - this.pic.getHeight()) + 'px'
		    });
		    this.visibility = this.el.visible();
		    if (this.visibility)
			    this.pic.show();
		    else
			    this.pic.hide();
		}
	}
});
//#REQUIRES DOMAttached

var ClickCounter = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));

		if (this.el.next('script')) {
			this.removeElement(this.el.next('script'));
		}
	},
	
	onClick: function(ev) {
		new Ajax.Request(this.options.url.replace("PLH_key", this.options.counterName), { 
			method : 'get',
			asynchronous: false,
			parameters: {
				nocache: Math.random()
			}
		});
	}
});
//#REQUIRES MessageList

var ChatWindowLink = Class.create(MessageList, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		this.url = $(el).href;
	},
	
	onClick : function(e) {
		window.open(this.url, "_blank", "height=642,width=400");
		e.stop();
		
		if (this.options.plazaChat)
			this.cleanUpMessages(this.el);
	}
});

//#REQUIRES DOMAttached

var ChatWindow = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		
		this.registerUnloadAction(this.onClose.bind(this));
		var backgroundColor = this.el.getStyle('background-color');
		this.el.up('body').setStyle({ 'background-color' : backgroundColor });
		this.el.down(this.options.memberChat ? 'textarea' : 'input').focus();
	},
	
	onClose: function() {
		new Ajax.Request(this.options.url, {
			method: 'get',
			asynchronous: false
		});
	}
});

//#REQUIRES DOMAttached

var Captcha = Class.create(DOMAttached, {
	// options should contain:
	// - ajajUrl: URL of AJAJ node returning binary image
	// - refreshLink: element whose click event to bind to the captcha's refresh function
	initialize: function($super, el, options) {
		$super(el, options);
		
		// The refresh link may well not be loaded yet, so we have to bind to its click handler once we can be sure it is
		var f = function() {
			Event.observe(options.refreshLink, 'click', this.refresh.bind(this));
		};
		// 4 seconds should be enough
		// old solution via observing window.load doesn't work in IE7+
		window.setTimeout(f.bind(this), 4000);
	},
	refresh: function() {
		new Ajax.Request(this.options.ajajUrl, {
			method: 'get',
			onSuccess: this.onSuccess.bind(this),
			onException: global.handleFailedAJAJRequest,
			parameters: {
			    nocache: Math.random()
			}
		});
	},
	onSuccess: function(req) {
		var json;
		try {
			json = req.responseText.evalJSON();
		} catch(e) {
			global.handleFailedAJAJRequest();
			return;
		}
		if(json != null && json.src != "") {
			this.el.down('img').src = json.src + "&nocache=" + Math.random();
		}
	}
});
//#REQUIRES DOMAttached
//#REQUIRES PostingListItemDetailsLoader

var BlogListItem = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

		if(this.el.down('.removeFromBlog')) {
			this.link = this.el.down('.removeFromBlog').down('a');
			this.safeObserve(this.link, 'click', this.onClick.bindAsEventListener(this));
		}
	},
	
	onClick: function(ev) {	
		if (confirm(this.options.trRemoveFromBlogConfirm) != true)
			return;
			
		var req = new Ajax.Request(this.options.removeFromBlogUrl, {
			method: 'get',
			onSuccess: this.onJSON.bind(this),
			onException: this.onJSONError.bind(this),
			onFailure: this.onJSONError.bind(this),
			parameters: {
				nocache: Math.random()
			}
		});
	},
	
	onJSONError : function(req) {
		alert('Error while removing posting from Blog.');
	},
	
	onJSON : function(req) {
		json = req.responseText.evalJSON();
		
		if (json.success != true)
			alert('Could not remove posting from Blog.');
			
		this.el.up('.blogList.postingList').attachedObj.refresh();
	}
});//#REQUIRES ListBase

var BlogList = Class.create(ListBase, {
	initialize: function($super, el, options) {
		$super(el, Object.extend({pagingEffect: 'vertSlide', buttonsMustBeChildren: true, fixDimensions: false}, options));
		
	},

	loadPage: function($super, page) {
		$super(page);
		this.standardJSONRequest(this.options.url.replace('PLH_pagenum', page));
	},
	
	onLoadPage: function(pageEl) {
		this.hideProgressIndicator();
		this.el.fire('list:criteriaChanged', { options: this.options });
		
		scroll(0, 0);
	}
});
//#REQUIRES DOMAttached

var BlogCheckBox = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.lnkExpl = this.el.down('.lnkExpl');
		this.divExpl = this.el.down('.divExpl');
		this.safeObserve(this.lnkExpl, 'click', this.showDiv.bindAsEventListener(this));
	},
	showDiv: function(ev) {
		this.divExpl.style.display = 'block';
	}	
});
//#REQUIRES DOMAttached
var BISItem = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		// events
		this.clickHandler = this.onClick.bindAsEventListener(this);
		this.safeObserve(this.el, "click", this.clickHandler);
		this.safeObserve(this.el, "bis:enteritem", this.clickHandler);
		this.safeObserve(this.el, 'mouseover', this.onMouseOver.bindAsEventListener(this));
	},
	
	onClick: function(ev) {
		global.BISControl.onClickItem(this);
	},
	
	onMouseOver: function(ev) {
		global.BISControl.changeCurrItem(this.el);
	}
});//#REQUIRES DOMAttached
var BEIdSelector = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		global.BISControl = this;
		// used elements
		this.txt = this.el.down("input[type=text].txt");
		this.hidIds = this.el.down("input[type=hidden].ids");
		this.target = this.el.down("div.target");
		this.selectDisplay = this.el.down("div.selectDisplay");
	  this.currItem = null;
	  // trigger control
		this.lastTxtValue = this.txt.value;
		this.lastUpdate = -1;
		this.lastDelayId = null;
		this.initIdsFromHidden();
		// events
		this.txtHandler = this.textChanged.bindAsEventListener(this);
		this.safeObserve(this.txt, "keydown", this.handleNavigationKeys.bindAsEventListener(this));
		this.safeObserve(this.txt, "keyup", this.txtHandler);
		this.safeObserve(this.txt, "blur", this.clearTrigger.bindAsEventListener(this));
		this.safeObserve(this.selectDisplay, "click", this.onUnselect.bindAsEventListener(this));
	},
	
	// ensures data is not lost while 'failed' postback
	initIdsFromHidden: function() {
		this.ids;
		if(this.hidIds.value != '') {
			this.ids = $A(this.hidIds.value.split(','));
			//console.log("read ids: " + this.ids);
			for(var i = 0; i < this.ids.length; i++) {
				this.fetchSelItem(this.ids[i]);
			}
		} else {
			this.ids = $A();
			//console.log("read no ids");
		}
		this.beidsChanged();
	},
	
	fetchSelItem: function(id) {
		var url = this.options.labelCallbackURL.replace("PLH_" + this.options.phlID, id);
		//console.log(this.options.phlID + " " + url);
		var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onAjaxLabelLoaded.bind(this),
			onException: this.onAjaxFailed.bind(this),
			onFailure: this.onAjaxFailed.bind(this)
		});
	},
	
	onAjaxLabelLoaded: function(resp) {
		 var json = resp.responseText.evalJSON();
	    if(json.error) {
	        this.onAjaxFailed(resp);
	        return;
	    }
	    //console.log(json);
	    new BISSelItem(json.id, json.label, this);
	},
	
	textChanged: function(ev) {
	    var newVal = this.txt.value;
	    if(newVal == this.lastTxtValue) {
	        return;
	    }
	    this.lastTxtValue = newVal;
	    // dont show selector for to short input values
	    if(newVal.length < this.options.minChars) {
	        this.clearTarget();
	        this.clearTrigger();
	        return;
	    }
	    // clear old delayed update if exists
	    var time = new Date().getTime();
	    if(time < this.lastUpdate + this.options.triggerThreshold) {
	       this.clearTrigger();
	    }
	    // start new delayed update
	    var delta = Math.max(this.options.triggerThreshold - (time - this.lastUpdate), 0) / 1000.0;
	    this.lastDelayId = this.triggerUpdate.bind(this).delay(delta);
	},
	
	clearTrigger: function() {
	    if(this.lastDelayId != undefined) {
	        window.clearTimeout(this.lastDelayId);
	        this.lastDelayId = null;
	    }
	},
	
	triggerUpdate: function() {
	  this.lastUpdate = new Date().getTime();
	
	  var url = this.options.fullCallbackURL.
	      replace("PLH_" + this.options.phlIDS, this.hidIds.value).
	      replace("PLH_" + this.options.phlTEXTSRC, this.txt.value);
	        
	  this.currItem = null;
	  this.target.update("<img src='/img/category_ajax_loader.gif' />");
	        
	  var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onAjaxResultListLoaded.bind(this),
			onException: this.onAjaxFailed.bind(this),
			onFailure: this.onAjaxFailed.bind(this),
			parameter: { nocache: Math.random() }
		});
	},
	
	handleNavigationKeys: function(ev) {
		switch(ev.keyCode) {
			//case 37: // left
			case 38: // up
				if(this.currItem != undefined && this.currItem != null) {
					this.changeCurrItem(this.currItem.previous('.BISItem'));
				}
				ev.stop();
				break;
				
			//case 39: // right
			case 40: // down
				if(this.currItem == undefined || this.currItem == null) {
					this.changeCurrItem(this.target.down('.BISItem'));
				} else {
					this.changeCurrItem(this.currItem.next('.BISItem'));
				}
				ev.stop();
				break;
				
			case 13: // enter
				if(this.currItem != undefined && this.currItem != null) {
					this.onEnterItem(this.currItem);
				}
				ev.stop();
				break;
		}
	},
	
	changeCurrItem: function(newItem) {
		//console.log("changeCurrItem: " + newItem + " was: " + this.currItem);
		if(newItem != undefined && newItem != null) {
			if(this.currItem != undefined && this.currItem != null) {
				this.currItem.removeClassName("current");
			}
			this.currItem = newItem;
			this.currItem.addClassName("current");
			return;
		}
	},
	
	onEnterItem: function(itemElement) {
		itemElement.fire("bis:enteritem");
	},
	
	onClickItem: function(bisitem) {
			this.addBEId(bisitem.options.beid);
			this.clearTarget();
	    new BISSelItem(bisitem.options.beid, bisitem.options.label, this);
	},
	
	clearTarget: function() {
		this.currItem = null;
		this.target.update("");
	},
	
	removeBEId: function(id) {
	    this.ids = this.ids.without(id);
	    this.beidsChanged();
	},
	
	addBEId: function(id) {
	    this.ids.push(id);
	    this.beidsChanged();
	},
	
  beidsChanged: function() {
      this.hidIds.value = this.ids.toArray().join(',');
      //console.log("set hidids to:" + this.hidIds.value);
      if((!this.options.multiSelect) && this.ids.length > 0) {
	        this.txt.hide();
	    } else {
				this.txt.show();
	    }
  },
	
	onAjaxResultListLoaded: function(resp) {
	    var json = resp.responseText.evalJSON();
	    if(json.error) {
	        this.onAjaxFailed(resp);
	        return;
	    }
	    if(this.txt.value.length >= this.options.minChars) {
				this.target.update(json.resultDiv);
				this.currItem = null;
			}
	},
	
	onAjaxFailed: function(resp) {
	    alert("AJAX failed: " + resp);
	},
	
	onUnselect: function(ev) {
		var target = $(ev.target);
		if(!target.hasClassName('usel')) {
			return;
		}
		// remove id from hidden id field
		this.removeBEId(target.getAttribute("name"));
		// also remove BISSelItem ffrom DOM
		var bisselel = target.up('div.BISSelItem');
		bisselel.up().removeChild(bisselel);
		
		ev.stop();
	}
	
});

var BISSelItem = Class.create({
  initialize: function(beid, label, biscontrol) {
		this.el = new Element('div', { 'class' : 'BISSelItem' });
		this.el.update(label);
		// create unselect image/button
		var imgUSel = new Element('div', {'class' : 'usel', 'name' : beid}).update('X');
		this.el.appendChild(imgUSel);
		biscontrol.selectDisplay.appendChild(this.el);	
  }
});
//#REQUIRES DOMAttached
//#REQUIRES UrlTemplate

var AvatarGenerator = Class.create(DOMAttached, {
  initialize: function($super, el, options) {
    $super(el, options);
    
	this.imgBackground = this.el.down('img.background');
    this.imgHair = this.el.down('img.hair');
    this.imgEyes = this.el.down('img.eyes');
    this.imgShirt = this.el.down('img.shirt');
    this.imgBottom = this.el.down('img.bottom');
    this.imgShoes = this.el.down('img.shoes');
    
	var background = this.el.down('div.background');
    background.assocImg = this.imgBackground;
    background.maxChoices = 6;
	
    var hair = this.el.down('div.hair');
    hair.assocImg = this.imgHair;
    hair.maxChoices = 4;
    
    var eyes = this.el.down('div.eyes');
    eyes.assocImg = this.imgEyes;
    eyes.maxChoices = 4;
    
    var shirt = this.el.down('div.shirt');
    shirt.assocImg = this.imgShirt;
    shirt.maxChoices = 8;
    
    var bottom = this.el.down('div.bottom');
    bottom.assocImg = this.imgBottom;
    bottom.maxChoices = 5;
    
    var shoes = this.el.down('div.shoes');
    shoes.assocImg = this.imgShoes;
    shoes.maxChoices = 6;
    
    this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
  },
  
  saveAvatar: function() {
    var srcFiles = '';
    this.el.up('div').select('.avatarGenerator > .imgContainer img').each(function(i) {
      var filename = i.src;
      var lastSlash = filename.lastIndexOf('/');
      if (lastSlash == -1)
        return;
      srcFiles += filename.substr(lastSlash + 1) + ','; 
    });
    
    if (srcFiles.length == 0) {
      this.alert("no source files found");
      return;
    }
    
    var url = new UrlTemplate(this.options.saveUrl).
      r('PLH_Ckey', srcFiles.substr(0, srcFiles.length-1)).url;
     
    var req = new Ajax.Request(url, {
      method: 'post',
      encoding: 'UTF-8',
      onSuccess: this.onSaved.bind(this)
    });
  },
  
  onSaved: function(req) {
    window.location.href = this.options.refererUrl;
  },
  
  onClick: function(ev) {
    ev.stop();
    var span = ev.findElement('span');
    var button = ev.findElement('input');
    if (button) {
      this.saveAvatar();
      return;
    } else if (!span)
      return;
    
    var delta = 0;
    if (span.hasClassName('btnFwd'))
      delta = 1;
    else if (span.hasClassName('btnBwd'))
      delta = -1;
    
    var selector = span.up('.partSelector');
    var assocImg = selector.assocImg;
    
    if (!assocImg)
      return;
    
    var oldNumber = /(\d+)\.png/.exec(assocImg.src);
    oldNumber = parseInt(oldNumber[1]);
    var newNumber = oldNumber + delta;
    if (newNumber >= selector.maxChoices)
      newNumber -= selector.maxChoices;
    else if (newNumber < 0)
      newNumber += selector.maxChoices;
      
    assocImg.src = assocImg.src.replace(/\d+\.png/, newNumber + '.png');
  }
});

//#REQUIRES ListBase

var AlbumList = Class.create(ListBase, {
	initialize: function($super, el, options) {
		var pagingEffect = 'none';
		if (options.maximized)
			pagingEffect = 'fade';
			
		$super(el, Object.extend({pagingEffect: pagingEffect, fixDimensions: true}, options));
		
		this.suppressProgressIndicator = true;

		this.slideshowURL = options.slideshowUrl;

		this.slideDuration = this.el.up().down('select');
		this.startSlideshow = this.el.up().down('.startSlideshow');
		this.stopSlideshow = this.el.up().down('.stopSlideshow');
		
		if (this.startSlideshow != undefined) {
			this.safeObserve(this.startSlideshow, 'click', this.onStart.bindAsEventListener(this));
			this.onStart(null);
		}
		if (this.stopSlideshow != undefined) {
			this.safeObserve(this.stopSlideshow, 'click', this.onStop.bindAsEventListener(this));
		}
		
		this.currentPageSpan = this.el.down('.currentPage');
		
		if (!this.options.maximized) {
			this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		}
		
		this.el.album = this;
		
		if (this.options.maximized)
			global.backdrop.setOpacity(.9);

		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	cleanUp: function() {
		this.el.album = null;
	},
	
	onClick: function(ev) {
		return;
		
		//NOT PART OF YAL
		var link = ev.findElement('a');
		if (link) {
			ev.stop();
			this.openDetailsView(link);
		}
	},
	
	openDetailsView: function(a) {
		var detailsURL = a.up('li').down('.detailsUrl');
		if (detailsURL) {
			var loader = new PostingListItemDetailsLoader(detailsURL.innerHTML);
			loader.show();
		}
	},

	openSlideshowView: function() {
		if (this.slideshowURL) {
			var loader = new PostingListItemDetailsLoader(this.slideshowURL);
			loader.show();
		}
	},
	
	onStart: function(ev) {
		if (ev)
			ev.stop();
		this.timeout = window.setTimeout(this.nextSlide.bind(this), this.slideDuration.value * 1000);
		this.startSlideshow.toggleClassName('collapsed');
		this.stopSlideshow.toggleClassName('collapsed');
	},
	
	onStop: function(ev) {
		ev.stop();
		window.clearTimeout(this.timeout);
		this.startSlideshow.toggleClassName('collapsed');
		this.stopSlideshow.toggleClassName('collapsed');
	},
	
	nextSlide: function(ev) {
		if (!this.options.lastPage) {
			this.onNextBtn(null);
			this.timeout = window.setTimeout(this.nextSlide.bind(this), this.slideDuration.value * 1000);
		}
	},
	
	loadPage: function($super, page) {
		$super(page);
		this.standardJSONRequest(this.options.url.replace('PLH_pagenum', page));
		if (this.currentPageSpan != undefined) {
			this.currentPageSpan.innerHTML = page + 1;
		}
	},
	
	onLoadPage: function($super, pageEl) {
		$super(pageEl);

		//this.resetDimensions();
	}
});
//#REQUIRES DOMAttached

var AjajSessionMessage = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.el.types = this.options.types.toLocaleLowerCase().split(',');
		this.el.genericErrorMessage = this.options.genericError;
		this.el.removeType = this.removeType;
		this.el.clear = this.clear;
		this.el.addMessage = this.addMessage;
		this.el.setType = this.setType;
		this.el.showGenericError = this.showGenericError;
		
		if(this.options.messages != undefined) {
			this.options.messages.split('#$#').each(function(msg) {
				//AjajSessionMessage.add(document.body.down('.ajajSessionMessageControler'), msg);
				this.addMessage(msg);
			}.bind(this));
			this.setType(this.options.messagesType);
		}
	},
	
	
	removeType : function() {
		var el = this.el == undefined ? this : this.el;
		el.types.each(function(type) {
			this.removeClassName(type);
		}.bind(el));
	},
	
	clear : function() {
		var el = this.el == undefined ? this : this.el;
		el.addClassName('collapsed');
		el.update();
		el.removeType();
	},
	
	addMessage : function(message) {
		var el = this.el == undefined ? this : this.el;
		if(message != undefined && message.strip().length > 0) {
		  var container = $(document.createElement('div'));
		  var image = $(document.createElement('img'));
		  var list = $(document.createElement('ul'));
			var entry = $(document.createElement('li'));
			var clearer = $(document.createElement('div'));
			
			container.addClassName('information');
			if (this.options.messagesType == "Error") {
			  image.setAttribute('src', '/img/icon_warning_red.png');
			} else {
			  image.setAttribute('src', '/img/icon_info_green.png');
			}
			entry.update(message);
			clearer.addClassName('clearer');
			
			list.appendChild(entry);
			container.appendChild(image);
			container.appendChild(list);
			container.appendChild(clearer);
			el.appendChild(container);
			
			el.removeClassName('collapsed');
		}
	},
	
	setType : function(type) {
		var el = this.el == undefined ? this : this.el;
		type = type.toLocaleLowerCase();
		if(type != undefined && el.types.indexOf(type) != -1) {
			el.removeType();
			el.addClassName(type);
		}
	},
	
	showGenericError : function() {
		var el = this.el == undefined ? this : this.el;
		el.clear();
		el.setType('error');
		el.addMessage(el.genericErrorMessage);
	}
});

AjajSessionMessage.add = function(el, message) {
	var container = AjajSessionMessage.find(el);
	if(container != undefined) {
		container.addMessage(message);
	}
}

AjajSessionMessage.setType = function(el, type) {
	var container = AjajSessionMessage.find(el);
	if(container != undefined) {
		container.setType(type);
	}
}

AjajSessionMessage.clear = function(el) {
	var container = AjajSessionMessage.find(el);
	if(container != undefined) {
		container.clear();
	}
}

AjajSessionMessage.find = function(el) {
	if(el.hasClassName('ajajSessionMessageControler'))
		return el.down('.ajajSessionMessage');
	return el.up('.ajajSessionMessageControler').down('.ajajSessionMessage');
}

AjajSessionMessage.showGenericError = function(el) {
	var container = AjajSessionMessage.find(el);
	if(container != undefined) {
		container.showGenericError();
	}
}//#REQUIRES DOMAttached

var AddThis = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
		this.url = "http://www.addthis.com/bookmark.php?v=10&pub=miaplaza&url=" + 
			encodeURIComponent(location.href) + "&title=" + encodeURIComponent(document.title);
	},
	
	onClick : function(e) {
		window.open(this.url, "addthis", "scrollbars=yes,menubar=no,width=620,height=520,resizable=yes,toolbar=no,location=no,status=no,screenX=200, screenY=100,left=200,top=100");
		e.stop();
	}
});

//#REQUIRES DOMAttached

var AddressInput = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);
		
		this.countrycontrol = this.getInputControl('.country', 'select');
		this.statecontrol = this.getInputControl('.state', 'input');
		this.stateelement = this.el.down('.state');
		this.cityelement = this.el.down('.city');
		this.zipelement = this.el.down('.zip');
		this.statecontainer = this.stateelement.up();
		this.citycontainer = this.cityelement.up();
		this.zipcontainer = this.zipelement.up();
		
		this.safeObserve(this.countrycontrol, 'change', this.onCountryChanged.bindAsEventListener(this));
		this.onCountryChanged();
	},
	
	getInputControl: function(cclass, type) {
		var contrl = this.el.down(cclass);
		if(contrl == undefined) {
			contrl = null;
		}
		else if(!contrl.match(type)) {
			contrl = contrl.down(type);
			if(contrl == undefined) {
				contrl = null;
			}
		}
		return contrl;
	},
	
	onCountryChanged : function(e) {
		// show the state input field only for the USA
		// for USA only: first city, then zip
		
		// DE format: zip, city, (state)
		// US format: city, state, zip
		if (this.countrycontrol.value == "US") {
			this.stateelement.removeClassName("collapsed");
			this.cityelement.removeClassName("cityDE");
			this.cityelement.addClassName("city");
			
			this.zipcontainer.parentNode.removeChild(this.zipcontainer);
			// insertBefore with nextSibling = insertAfter
			this.statecontainer.parentNode.insertBefore(this.zipcontainer, this.statecontainer.nextSibling);
		} else {
			this.statecontrol.value = "";
			this.stateelement.addClassName("collapsed");
			this.cityelement.removeClassName("city");
			this.cityelement.addClassName("cityDE");
			
			this.zipcontainer.parentNode.removeChild(this.zipcontainer);
			this.citycontainer.parentNode.insertBefore(this.zipcontainer, this.citycontainer);
		}
	}
});var addressConfirmationMap = null;
function gmapACLoadCallback() {
	if (addressConfirmationMap == null)
		return;
	addressConfirmationMap.ShowMap();
}

//#REQUIRES addressConfirmation
//#REQUIRES DOMAttached
//#REQUIRES GoogleMap
//#REQUIRES PostingListItemDetailsLoader

var GoogleMapAddressConfirmation = Class.create(GoogleMap, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.el.mapObject = this;
		this.registerUnloadAction(this.cleanUp.bind(this));
	},

	cleanUp: function() {
		this.el.mapObject = null;
	},
	
	loadData: function($super) {
		this.mgr = new GMarkerManager(this.map);
		this.stopLoading();
		
		if (this.options.initialMarkerText != undefined && this.options.initialMarkerText != null) {
			this.addMarker(this.options.initialMarkerText);
			this.options.initialMarkerText = null;
		}
	},
	
	clear: function() {
		this.map.clearOverlays();
	},
	
	moveTo: function(lat, lng) {
		this.map.setCenter(new GLatLng(lat, lng));
		this.saveStatus();
	},
	
	addMarker: function(tooltip) {
		this.map.addOverlay(new GMarker(this.map.getCenter(), {title: tooltip}));
	}
});

var AddressConfirmation = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);
		this.options = options;
		this.el = $(el);		
		this.fform = this.el.up('form');  
				      
		// getting controls      
		this.address = this.getInputControl(this.options.AddressControlId, 'input');
		this.zip = this.getInputControl(this.options.ZipControlId, 'input');
		this.country = this.getInputControl(this.options.CountryControlId, 'select');
		this.state = this.getInputControl(this.options.StateControlId, 'input');
		this.coords = this.getInputControl(this.options.CoordsControlId, 'input');
		this.city = this.getInputControl(this.options.CityControlId, 'input');
		
		if(this.options.Accepted) {
			this.updateFields();
			this.submitForm();
			return;
		}
		
		this.el.select('.confirm').each(function(el) {
			this.safeObserve(el, 'click', this.onAddressClick.bindAsEventListener(this))
		}.bind(this) );		
			
		if (!this.options.popup) {
			global.addressConfirmation = this;
			this.check = this.el.down('.confirmAddress');
			
			this.fform.oldOnSubmit = this.fform.readAttribute("onsubmit");
			this.fform.writeAttribute("onsubmit", "");
			
			if (this.options.confirmOnSubmit) {
				this.safeObserve(this.fform, 'submit', this.onSubmit.bindAsEventListener(this));
			}
		} else {
			this.safeObserve(this.el.down('.defaultBtn'), 'click', this.onDefaultBtn.bindAsEventListener(this));
			this.safeObserve(this.el.down('.ignoreBtn'), 'click', this.onIgnoreBtn.bindAsEventListener(this));
			this.writebackField(this.coords, this.options.defaultLatitude + "," + this.options.defaultLongitude);
		}	
		
	},
	
	getAddressValues : function() {
		var addressValue;
		if(this.address)
			addressValue = this.address.value;
		else
			addressValue = '';
		return [ addressValue, this.zip.value, this.country.value, this.state.value, this.city.value ];
	},
	
	getInputControl: function(cid, type) {
		var contrl = $(cid);
		if(contrl == undefined) {
		contrl = null;
		}
		else if(!contrl.match(type)) {
			contrl = contrl.down(type);
			if(contrl == undefined) {
				contrl = null;
			}
		}
		return contrl;
	},
	
	map: function() {
		// fetch googleMap class dynamically as it may not exist at construction time
		if (this.googleMap == undefined) {
			this.googleMap = this.el.down('.googleMap').mapObject;
		}
		return this.googleMap;
	},
	
	onAddressClick: function(ev) {
		ev.stop();
		
		var li = ev.target.up();
		var isdefault = li.down('.default').innerHTML == 'true';
		
		// set current address
		this.options.defaultAddress = li.down('.address').innerHTML;
		this.options.defaultZip = li.down('.zip').innerHTML;
		this.options.defaultCity = li.down('.city').innerHTML;
		this.options.defaultState = li.down('.state').innerHTML;
		this.options.defaultLatitude = li.down('.latitude').innerHTML;
		this.options.defaultLongitude = li.down('.longitude').innerHTML;
		this.options.defaultCountry = li.down('.country').innerHTML;
		
		this.el.down('.chosenAddressBox').down('.chosenAddress').innerHTML = li.down('.full').innerHTML;
		
		var map = this.map();
		map.clear();
		if (this.options.defaultLatitude != 0 || this.options.defaultLongitude != 0) {
			map.moveTo(this.options.defaultLatitude, this.options.defaultLongitude);
		}
		map.addMarker(li.down('.confirm').innerHTML);
	},
	
	onDefaultBtn : function(event) {
		this.updateFields();
		this.submitForm();
	},
	
	onIgnoreBtn : function(event) {
		this.submitForm();
	},
	
	writebackField: function(field, newValue) {
		if(field == undefined)
			return;
		field.setValue(newValue);
		try {
			field.up('.watermarkContainer').down('.watermark').style.display = (newValue == undefined || newValue == "") ? 'block' : 'none';
		} catch(err) {}
	},
	
	// debug
	showCurr: function() {
		alert("AddressConformation init()\n ----- \n" + 
			"\nZip: " + this.options.ZipControlId + " - " + this.zip + 
			"\nAddress: " + this.options.AddressControlId + " - " + this.address + 
			"\nCountry: " + this.options.CountryControlId + " - " + this.country + 
			"\nState: " + this.options.StateControlId + " - " + this.state + 
			"\nCoords: " + this.options.CoordsControlId + " - " + this.coords + 
			"\nCity: " + this.options.CityControlId + " - " + this.city);
		      
		alert("ShowCurr\n----\n Address: " + this.options.defaultAddress + 
			"\n Zip: " + this.options.defaultZip + 
			"\n City: " + this.options.defaultCity + 
			"\n State: " + this.options.defaultState + 
			"\n Lat: " + this.options.defaultLatitude + 
			"\n Long: " + this.options.defaultLongitude + 
			"\n Country: " + this.options.defaultCountry);
	},
	
	onSubmit: function(event){ 
		if(this.fform.down('.bypass').down('input').value == 'true') {
			this.fform.down('.bypass').down('input').value = 'false';			
			return true;
		}
		
		// no address check if address input control is empty
		if (this.isEmpty()) {
			this.submitForm();
		}
		
		event.stop();
		this.ConfirmViaAjax();
	},
	
	isEmpty: function() {
		var addressValue;
		if(this.address)
			addressValue = this.address.value;
		else
			addressValue = '';
		return (addressValue == ""
			&& this.country.value == ""
			&& this.zip.value == ""
			&& this.state.value == ""
			&& this.city.value == "");
	},
	
	isChecking: function() {
		return (this.check != undefined && this.check.checked);
	},
	
	updateFields: function() {
		this.writebackField(this.address, this.options.defaultAddress);
		this.writebackField(this.country, this.options.defaultCountry);
		this.writebackField(this.zip, this.options.defaultZip);
		this.writebackField(this.state, this.options.defaultState);
		this.writebackField(this.city, this.options.defaultCity);
		this.writebackField(this.coords, this.options.defaultLatitude + "," + this.options.defaultLongitude);	
	},
	
	submitForm: function() {
		if(!this.options.submitAddressControl) {
			if(global.partywizard != undefined) {
				global.partywizard.onAddressConfirmationDone();
				if(PostingListItemDetailsLoader.activePosting != undefined) {
					PostingListItemDetailsLoader.activePosting.hide();
				}
			}
			return;
		}
		this.fform.down('.bypass').down('input').value = 'true';
		// REVIEW: re-activation of other submit event clears file upload fields
		if(this.fform.oldOnSubmit != undefined && this.fform.oldOnSubmit != null) {
			this.fform.writeAttribute("onsubmit", this.fform.oldOnSubmit)
		}
		var eel = this.fform.down('input[type=submit].addresssubmit');
		eel.click();
	},
	
	onPopupFailure: function(req) {
		if (this.onAjaxRequestDone != undefined)
			this.onAjaxRequestDone();
		alert('Address could not be confirmed.');
	},
	
	onPopupLoaded: function(req) {
		var json = req.responseText.evalJSON();
		
		if (this.onAjaxRequestDone != undefined)
			this.onAjaxRequestDone();
		
		if (json.result == "AddressAccepted") {
			Object.extend(this.options, json);
			this.updateFields();
			this.submitForm();
			return;
		} else if (json.result == "InvalidAddress") {
			if(confirm(this.options["invalidAddressMessage"])) {
				this.submitForm();
			}
			return;
		}
		else {
			global.showBackdropProgressIndicator();
			
			this.request = req;
			
			if (typeof GMap2 == 'function') {
				this.ShowMap();
			} else {
				addressConfirmationMap = this;				
				var script = document.createElement('script');
				// include google map JS with callback
				script.setAttribute('src', this.options.mapJSInclude + '&async=2&callback=gmapACLoadCallback');
				script.setAttribute('type', 'text/javascript');
				this.el.appendChild(script);
			}	
		}
	},
	
	ConfirmViaAjax: function() {
		var url = this.options.ajajUrl;
		var addressValue;
		if(this.address)
			addressValue = this.address.value;
		else
			addressValue = '';
		url = url.replace('PLH_city', this.esc(this.city.value)).
			replace('PLH_zip', this.zip.value).
			replace('PLH_country', this.country.value).
			replace('PLH_address', this.esc(addressValue));
		
		if (this.state != undefined)
			url = url.replace('PLH_state', this.state.value);
		else
			url = url.replace('PLH_state', '');
			
		if(this.check != undefined)
			url = url.replace('PLH_cadd', this.check.checked);
		else 
			url = url.replace('PLH_cadd', 'true');
			
		url = url.replace('PLH_sac', this.options.submitAddressControl);
			
		url = url.replace('PLH_acid', 
			this.options.AddressControlId + "," + 
			this.options.CityControlId + "," +
			this.options.StateControlId + "," +
			this.options.CountryControlId + "," +
			this.options.CoordsControlId + "," +
			this.options.ZipControlId);
		
		var req = new Ajax.Request(url, {
			method: 'post',
			encoding: 'UTF-8',
			onSuccess: this.onPopupLoaded.bind(this),
			onException: this.onPopupFailure.bind(this),
			onFailure: this.onPopupFailure.bind(this)
		});
	},
	
	ShowMap : function() {
		this.loader = new PostingListItemDetailsLoader();
		this.loader.onDetailsLoaded(this.request);	
	},
	
	esc : function(str) {
		
		if(Prototype.Browser.IE) {
			str = str.replace(String.fromCharCode(223), "ss");
			return unescape(encodeURIComponent(str));
		}
		else
			return str;
	}
	
});
//#REQUIRES DOMAttached

var ActiveRatingBar = Class.create(DOMAttached, {
	initialize: function($super, el, options) {
		$super(el, options);

    if (this.options.showDescription) {
      this.desc = this.el.down('ul').select('li');
    }
		this.stars = this.el.select('span.star');
		this.rating = this.el.down('.ratingValue');
		
		this.safeObserve(this.el, 'mouseover', this.onMouseOver.bindAsEventListener(this));
		this.safeObserve(this.el, 'mouseout', this.onMouseOut.bindAsEventListener(this));
		this.safeObserve(this.el, 'click', this.onClick.bindAsEventListener(this));
	},
	
	onMouseOver: function(ev) {
		ev.stop();
		var star = ev.findElement('span');
		if (star == undefined || !star.hasClassName('star')) {
			return;
		}
		
		this.updateStars(star);
	},
	
	onMouseOut: function(ev) {
		ev.stop();
		var _star = ev.findElement('span');
		if (_star == undefined || !_star.hasClassName('star')) {
			return;
		}
		
		var rating = this.rating.value;
		var star = null;
		this.stars.each(function(el) {
			--rating;
			if (rating == 0) {
				star = el;
			}
		});
		this.updateStars(star);
	},
	
	updateStars: function(star) {
		var count = 0;
		var starMode = (star != null) ? 'On' : 'Off';
		this.stars.each(function(el) {
			if (starMode == 'On') {
				++count;
				el.removeClassName('starOff');
				el.addClassName('starOn');
			} else {
				el.removeClassName('starOn');
				el.addClassName('starOff');
			}
			if (star == el) {
				starMode = 'Off';
			}
		});
    if (this.options.showDescription) {
  		this.desc.each(function(el) {
  			--count;
  			if (count == -1) {
  				if (el.hasClassName('collapsed')) {
  					el.removeClassName('collapsed');
  				}
  			} else {
  				if (!el.hasClassName('collapsed')) {
  					el.addClassName('collapsed');
  				}
  			}
  		});
    }
	},
	
	onClick: function(ev) {
		ev.stop();
		var star = ev.findElement('span');
		if (star == undefined || !star.hasClassName('star')) {
			return;
		}
		
		var count;
		for (count = 0; count < this.stars.length; ++count) {
			if (this.stars[count] == star) {
				break;
			}
		}

		this.rating.value = (count + 1);
	}
});
//#REQUIRES ListBase

var ActivePlazasList = Class.create(ListBase, {
	initialize: function($super, el, options) {
		//Class is reused for friendslist (which uses different paging effect)
		if ($(el).hasClassName("myFriendsList"))
			$super(el, Object.extend({pagingEffect: 'returnToTop'}, options));
		else
			$super(el, Object.extend({pagingEffect: 'vertSlide'}, options));
	},

	loadPage: function($super, page) {
		$super(page);
		this.standardJSONRequest(this.options.url.replace('PLH_pagenum', page));
	}
});

//#REQUIRES DOMAttached

var AboutMiaPlaza = Class.create(DOMAttached, {
	initialize: function($super, el) {
		$super(el);

		this.img = this.el.down('img');
		this.exec = new PeriodicalExecuter(this.changePic.bind(this), 20);
		this.registerUnloadAction(this.exec.stop.bind(this.exec));
		this.registerUnloadAction(this.cleanUp.bind(this));
	},
	
	changePic: function() {
		this.img.src = this.img.src.replace(/\d_large/, Math.ceil(Math.random() * 7) + '_large');
	},
	
	cleanUp: function() {
		this.img = null;
		this.exec = null;
	}
});