/*  Prototype JavaScript framework, version 1.6.1
 *  (c) 2005-2009 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: '1.6.1',

  Browser: (function(){
    var ua = navigator.userAgent;
    var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
    return {
      IE:             !!window.attachEvent && !isOpera,
      Opera:          isOpera,
      WebKit:         ua.indexOf('AppleWebKit/') > -1,
      Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
      MobileSafari:   /Apple.*Mobile.*Safari/.test(ua)
    }
  })(),

  BrowserFeatures: {
    XPath: !!document.evaluate,
    SelectorsAPI: !!document.querySelector,
    ElementExtensions: (function() {
      var constructor = window.Element || window.HTMLElement;
      return !!(constructor && constructor.prototype);
    })(),
    SpecificElementExtensions: (function() {
      if (typeof window.HTMLDivElement !== 'undefined')
        return true;

      var div = document.createElement('div');
      var form = document.createElement('form');
      var isSupported = false;

      if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
        isSupported = true;
      }

      div = form = null;

      return isSupported;
    })()
  },

  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;


var Abstract = { };


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;
  }
};

/* Based on Alex Arnell's inheritance implementation. */

var Class = (function() {
  function subclass() {};
  function create() {
    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) {
      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;
  }

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

    if (!Object.keys({ toString: true }).length) {
      if (source.toString != Object.prototype.toString)
        properties.push("toString");
      if (source.valueOf != Object.prototype.valueOf)
        properties.push("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 = (function(m) {
          return function() { return ancestor[m].apply(this, arguments); };
        })(property).wrap(method);

        value.valueOf = method.valueOf.bind(method);
        value.toString = method.toString.bind(method);
      }
      this.prototype[property] = value;
    }

    return this;
  }

  return {
    create: create,
    Methods: {
      addMethods: addMethods
    }
  };
})();
(function() {

  var _toString = Object.prototype.toString;

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

  function inspect(object) {
    try {
      if (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;
    }
  }

  function toJSON(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 (isElement(object)) return;

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

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

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

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

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

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

  function clone(object) {
    return extend({ }, object);
  }

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

  function isArray(object) {
    return _toString.call(object) == "[object Array]";
  }


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

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

  function isString(object) {
    return _toString.call(object) == "[object String]";
  }

  function isNumber(object) {
    return _toString.call(object) == "[object Number]";
  }

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

  extend(Object, {
    extend:        extend,
    inspect:       inspect,
    toJSON:        toJSON,
    toQueryString: toQueryString,
    toHTML:        toHTML,
    keys:          keys,
    values:        values,
    clone:         clone,
    isElement:     isElement,
    isArray:       isArray,
    isHash:        isHash,
    isFunction:    isFunction,
    isString:      isString,
    isNumber:      isNumber,
    isUndefined:   isUndefined
  });
})();
Object.extend(Function.prototype, (function() {
  var slice = Array.prototype.slice;

  function update(array, args) {
    var arrayLength = array.length, length = args.length;
    while (length--) array[arrayLength + length] = args[length];
    return array;
  }

  function merge(array, args) {
    array = slice.call(array, 0);
    return update(array, args);
  }

  function argumentNames() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
      .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
      .replace(/\s+/g, '').split(',');
    return names.length == 1 && !names[0] ? [] : names;
  }

  function bind(context) {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = slice.call(arguments, 1);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(context, a);
    }
  }

  function bindAsEventListener(context) {
    var __method = this, args = slice.call(arguments, 1);
    return function(event) {
      var a = update([event || window.event], args);
      return __method.apply(context, a);
    }
  }

  function curry() {
    if (!arguments.length) return this;
    var __method = this, args = slice.call(arguments, 0);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(this, a);
    }
  }

  function delay(timeout) {
    var __method = this, args = slice.call(arguments, 1);
    timeout = timeout * 1000
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  }

  function defer() {
    var args = update([0.01], arguments);
    return this.delay.apply(this, args);
  }

  function wrap(wrapper) {
    var __method = this;
    return function() {
      var a = update([__method.bind(this)], arguments);
      return wrapper.apply(this, a);
    }
  }

  function methodize() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      var a = update([this], arguments);
      return __method.apply(null, a);
    };
  }

  return {
    argumentNames:       argumentNames,
    bind:                bind,
    bindAsEventListener: bindAsEventListener,
    curry:               curry,
    delay:               delay,
    defer:               defer,
    wrap:                wrap,
    methodize:           methodize
  }
})());


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"';
};


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();
        this.currentlyExecuting = false;
      } catch(e) {
        this.currentlyExecuting = false;
        throw e;
      }
    }
  }
});
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, (function() {

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

  function gsub(pattern, replacement) {
    var result = '', source = this, match;
    replacement = prepareReplacement(replacement);

    if (Object.isString(pattern))
      pattern = RegExp.escape(pattern);

    if (!(pattern.length || pattern.source)) {
      replacement = replacement('');
      return replacement + source.split('').join(replacement) + 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;
  }

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

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

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

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

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

  function stripTags() {
    return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
  }

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

  function extractScripts() {
    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];
    });
  }

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

  function escapeHTML() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  }

  function unescapeHTML() {
    return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
  }


  function toQueryParams(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;
    });
  }

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

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

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

  function camelize() {
    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;
  }

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

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

  function dasherize() {
    return this.replace(/_/g, '-');
  }

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

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

  function unfilterJSON(filter) {
    return this.replace(filter || Prototype.JSONFilter, '$1');
  }

  function isJSON() {
    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);
  }

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

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

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

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

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

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

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

  return {
    gsub:           gsub,
    sub:            sub,
    scan:           scan,
    truncate:       truncate,
    strip:          String.prototype.trim ? String.prototype.trim : strip,
    stripTags:      stripTags,
    stripScripts:   stripScripts,
    extractScripts: extractScripts,
    evalScripts:    evalScripts,
    escapeHTML:     escapeHTML,
    unescapeHTML:   unescapeHTML,
    toQueryParams:  toQueryParams,
    parseQuery:     toQueryParams,
    toArray:        toArray,
    succ:           succ,
    times:          times,
    camelize:       camelize,
    capitalize:     capitalize,
    underscore:     underscore,
    dasherize:      dasherize,
    inspect:        inspect,
    toJSON:         toJSON,
    unfilterJSON:   unfilterJSON,
    isJSON:         isJSON,
    evalJSON:       evalJSON,
    include:        include,
    startsWith:     startsWith,
    endsWith:       endsWith,
    empty:          empty,
    blank:          blank,
    interpolate:    interpolate
  };
})());

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

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

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return (match[1] + '');

      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].replace(/\\\\]/g, ']') : 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 = (function() {
  function each(iterator, context) {
    var index = 0;
    try {
      this._each(function(value) {
        iterator.call(context, value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  }

  function eachSlice(number, iterator, context) {
    var index = -number, slices = [], array = this.toArray();
    if (number < 1) return array;
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  }

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

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

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

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

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

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

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

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

  function include(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;
  }

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

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

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

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

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

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

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

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

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

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

  function zip() {
    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));
    });
  }

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

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









  return {
    each:       each,
    eachSlice:  eachSlice,
    all:        all,
    every:      all,
    any:        any,
    some:       any,
    collect:    collect,
    map:        collect,
    detect:     detect,
    findAll:    findAll,
    select:     findAll,
    filter:     findAll,
    grep:       grep,
    include:    include,
    member:     include,
    inGroupsOf: inGroupsOf,
    inject:     inject,
    invoke:     invoke,
    max:        max,
    min:        min,
    partition:  partition,
    pluck:      pluck,
    reject:     reject,
    sortBy:     sortBy,
    toArray:    toArray,
    entries:    toArray,
    zip:        zip,
    size:       size,
    inspect:    inspect,
    find:       detect
  };
})();
function $A(iterable) {
  if (!iterable) return [];
  if ('toArray' in Object(iterable)) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

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

Array.from = $A;


(function() {
  var arrayProto = Array.prototype,
      slice = arrayProto.slice,
      _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available

  function each(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  }
  if (!_each) _each = each;

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

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

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

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

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

  function without() {
    var values = slice.call(arguments, 0);
    return this.select(function(value) {
      return !values.include(value);
    });
  }

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

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

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


  function clone() {
    return slice.call(this, 0);
  }

  function size() {
    return this.length;
  }

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

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

  function indexOf(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;
  }

  function lastIndexOf(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;
  }

  function concat() {
    var array = slice.call(this, 0), item;
    for (var i = 0, length = arguments.length; i < length; i++) {
      item = arguments[i];
      if (Object.isArray(item) && !('callee' in item)) {
        for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
          array.push(item[j]);
      } else {
        array.push(item);
      }
    }
    return array;
  }

  Object.extend(arrayProto, Enumerable);

  if (!arrayProto._reverse)
    arrayProto._reverse = arrayProto.reverse;

  Object.extend(arrayProto, {
    _each:     _each,
    clear:     clear,
    first:     first,
    last:      last,
    compact:   compact,
    flatten:   flatten,
    without:   without,
    reverse:   reverse,
    uniq:      uniq,
    intersect: intersect,
    clone:     clone,
    toArray:   clone,
    size:      size,
    inspect:   inspect,
    toJSON:    toJSON
  });

  var CONCAT_ARGUMENTS_BUGGY = (function() {
    return [].concat(arguments)[0][0] !== 1;
  })(1,2)

  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

  if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
  if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
})();
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {
  function initialize(object) {
    this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
  }

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

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

  function get(key) {
    if (this._object[key] !== Object.prototype[key])
      return this._object[key];
  }

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

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

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

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

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

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

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

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

  function toQueryString() {
    return this.inject([], function(results, pair) {
      var key = encodeURIComponent(pair.key), values = pair.value;

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

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

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

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

  return {
    initialize:             initialize,
    _each:                  _each,
    set:                    set,
    get:                    get,
    unset:                  unset,
    toObject:               toObject,
    toTemplateReplacements: toObject,
    keys:                   keys,
    values:                 values,
    index:                  index,
    merge:                  merge,
    update:                 update,
    toQueryString:          toQueryString,
    inspect:                inspect,
    toJSON:                 toJSON,
    clone:                  clone
  };
})());

Hash.from = $H;
Object.extend(Number.prototype, (function() {
  function toColorPart() {
    return this.toPaddedString(2, 16);
  }

  function succ() {
    return this + 1;
  }

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

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

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

  function abs() {
    return Math.abs(this);
  }

  function round() {
    return Math.round(this);
  }

  function ceil() {
    return Math.ceil(this);
  }

  function floor() {
    return Math.floor(this);
  }

  return {
    toColorPart:    toColorPart,
    succ:           succ,
    times:          times,
    toPaddedString: toPaddedString,
    toJSON:         toJSON,
    abs:            abs,
    round:          round,
    ceil:           ceil,
    floor:          floor
  };
})());

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

var ObjectRange = Class.create(Enumerable, (function() {
  function initialize(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  }

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

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

  return {
    initialize: initialize,
    _each:      _each,
    include:    include
  };
})());



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)) {
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      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';
    }

    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') {
      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) {
  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(global) {

  var SETATTRIBUTE_IGNORES_NAME = (function(){
    var elForm = document.createElement("form");
    var elInput = document.createElement("input");
    var root = document.documentElement;
    elInput.setAttribute("name", "test");
    elForm.appendChild(elInput);
    root.appendChild(elForm);
    var isBuggy = elForm.elements
      ? (typeof elForm.elements.test == "undefined")
      : null;
    root.removeChild(elForm);
    elForm = elInput = null;
    return isBuggy;
  })();

  var element = global.Element;
  global.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (SETATTRIBUTE_IGNORES_NAME && 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(global.Element, element || { });
  if (element) global.Element.prototype = element.prototype;
})(this);

Element.cache = { };
Element.idCounter = 1;

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 = $(element);
    element.style.display = 'none';
    return element;
  },

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

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

  update: (function(){

    var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
      var el = document.createElement("select"),
          isBuggy = true;
      el.innerHTML = "<option value=\"test\">test</option>";
      if (el.options && el.options[0]) {
        isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
      }
      el = null;
      return isBuggy;
    })();

    var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){
      try {
        var el = document.createElement("table");
        if (el && el.tBodies) {
          el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
          var isBuggy = typeof el.tBodies[0] == "undefined";
          el = null;
          return isBuggy;
        }
      } catch (e) {
        return true;
      }
    })();

    var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
      var s = document.createElement("script"),
          isBuggy = false;
      try {
        s.appendChild(document.createTextNode(""));
        isBuggy = !s.firstChild ||
          s.firstChild && s.firstChild.nodeType !== 3;
      } catch (e) {
        isBuggy = true;
      }
      s = null;
      return isBuggy;
    })();

    function update(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 === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
        element.text = content;
        return element;
      }

      if (SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY) {
        if (tagName in Element._insertionTranslations.tags) {
          while (element.firstChild) {
            element.removeChild(element.firstChild);
          }
          Element._getContentFromAnonymousElement(tagName, content.stripScripts())
            .each(function(node) {
              element.appendChild(node)
            });
        }
        else {
          element.innerHTML = content.stripScripts();
        }
      }
      else {
        element.innerHTML = content.stripScripts();
      }

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

    return update;
  })(),

  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(element, 'parentNode');
  },

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

  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(element, 'previousSibling');
  },

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

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

  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(element);
    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(element);
    return Object.isNumber(expression) ? Element.descendants(element)[expression] :
      Element.select(element, expression)[index || 0];
  },

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


  select: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element, args);
  },

  adjacent: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = Element.readAttribute(element, 'id');
    if (id) return id;
    do { id = 'anonymous_element_' + Element.idCounter++ } while ($(id));
    Element.writeAttribute(element, '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(element).height;
  },

  getWidth: function(element) {
    return Element.getDimensions(element).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(element, 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(element, className) ?
      'removeClassName' : 'addClassName'](element, className);
  },

  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);

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

    if (ancestor.contains)
      return ancestor.contains(element) && ancestor !== element;

    while (element = element.parentNode)
      if (element == ancestor) return true;

    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = Element.cumulativeOffset(element);
    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 || value == 'auto') {
      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(element, 'display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    if (originalPosition != 'fixed') // Switching fixed to absolute causes issues in Safari
      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';
      if (Prototype.Browser.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.toUpperCase() == '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(element, 'position') == 'absolute') return element;

    var offsets = Element.positionedOffset(element);
    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(element, 'position') == 'relative') return element;

    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;

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

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == '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] || { });

    source = $(source);
    var p = Element.viewportOffset(source);

    element = $(element);
    var delta = [0, 0];
    var parent = null;
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = Element.getOffsetParent(element);
      delta = Element.viewportOffset(parent);
    }

    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    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;
  }
};

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':
          if (!Element.visible(element)) return null;

          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) {
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      try { element.offsetParent }
      catch(e) { return $(document.body) }
      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);
        try { element.offsetParent }
        catch(e) { return Element._returnOffset(0,0) }
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        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.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
    function(proceed, element) {
      try { element.offsetParent }
      catch(e) { return Element._returnOffset(0,0) }
      return proceed(element);
    }
  );

  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 = (function(){

    var classProp = 'className';
    var forProp = 'for';

    var el = document.createElement('div');

    el.setAttribute(classProp, 'x');

    if (el.className !== 'x') {
      el.setAttribute('class', 'x');
      if (el.className === 'x') {
        classProp = 'class';
      }
    }
    el = null;

    el = document.createElement('label');
    el.setAttribute(forProp, 'x');
    if (el.htmlFor !== 'x') {
      el.setAttribute('htmlFor', 'x');
      if (el.htmlFor === 'x') {
        forProp = 'htmlFor';
      }
    }
    el = null;

    return {
      read: {
        names: {
          'class':      classProp,
          'className':  classProp,
          'for':        forProp,
          'htmlFor':    forProp
        },
        values: {
          _getAttr: function(element, attribute) {
            return element.getAttribute(attribute);
          },
          _getAttr2: function(element, attribute) {
            return element.getAttribute(attribute, 2);
          },
          _getAttrNode: function(element, attribute) {
            var node = element.getAttributeNode(attribute);
            return node ? node.value : "";
          },
          _getEv: (function(){

            var el = document.createElement('div');
            el.onclick = Prototype.emptyFunction;
            var value = el.getAttribute('onclick');
            var f;

            if (String(value).indexOf('{') > -1) {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                attribute = attribute.toString();
                attribute = attribute.split('{')[1];
                attribute = attribute.split('}')[0];
                return attribute.strip();
              };
            }
            else if (value === '') {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                return attribute.strip();
              };
            }
            el = null;
            return f;
          })(),
          _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 frameBorder').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr2,
      src:         v._getAttr2,
      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);

  if (Prototype.BrowserFeatures.ElementExtensions) {
    (function() {
      function _descendants(element) {
        var nodes = element.getElementsByTagName('*'), results = [];
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName !== "!") // Filter out comment nodes.
            results.push(node);
        return results;
      }

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

}

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

    return element;
  };

  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 ('outerHTML' in document.documentElement) {
  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() {
  var tags = Element._insertionTranslations.tags;
  Object.extend(tags, {
    THEAD: tags.TBODY,
    TFOOT: tags.TBODY,
    TH:    tags.TD
  });
})();

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);

(function(div) {

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

  div = null;

})(document.createElement('div'))

Element.extend = (function() {

  function checkDeficiency(tagName) {
    if (typeof window.Element != 'undefined') {
      var proto = window.Element.prototype;
      if (proto) {
        var id = '_' + (Math.random()+'').slice(2);
        var el = document.createElement(tagName);
        proto[id] = 'x';
        var isBuggy = (el[id] !== 'x');
        delete proto[id];
        el = null;
        return isBuggy;
      }
    }
    return false;
  }

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

  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

  if (Prototype.BrowserFeatures.SpecificElementExtensions) {
    if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY) {
      return function(element) {
        if (element && typeof element._extendedByPrototype == 'undefined') {
          var t = element.tagName;
          if (t && (/^(?:object|applet|embed)$/i.test(t))) {
            extendElementWith(element, Element.Methods);
            extendElementWith(element, Element.Methods.Simulated);
            extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
          }
        }
        return element;
      }
    }
    return Prototype.K;
  }

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

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

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

    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    extendElementWith(element, methods);

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      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];

    var element = document.createElement(tagName);
    var proto = element['__proto__'] || element.constructor.prototype;
    element = null;
    return proto;
  }

  var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
   Element.prototype;

  if (F.ElementExtensions) {
    copy(Element.Methods, elementPrototype);
    copy(Element.Methods.Simulated, elementPrototype, 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() {
    return { width: this.getWidth(), height: this.getHeight() };
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop);
  }
};

(function(viewport) {
  var B = Prototype.Browser, doc = document, element, property = {};

  function getRootElement() {
    if (B.WebKit && !doc.evaluate)
      return document;

    if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
      return document.body;

    return document.documentElement;
  }

  function define(D) {
    if (!element) element = getRootElement();

    property[D] = 'client' + D;

    viewport['get' + D] = function() { return element[property[D]] };
    return viewport['get' + D]();
  }

  viewport.getWidth  = define.curry('Width');

  viewport.getHeight = define.curry('Height');
})(document.viewport);


Element.Storage = {
  UID: 1
};

Element.addMethods({
  getStorage: function(element) {
    if (!(element = $(element))) return;

    var uid;
    if (element === window) {
      uid = 0;
    } else {
      if (typeof element._prototypeUID === "undefined")
        element._prototypeUID = [Element.Storage.UID++];
      uid = element._prototypeUID[0];
    }

    if (!Element.Storage[uid])
      Element.Storage[uid] = $H();

    return Element.Storage[uid];
  },

  store: function(element, key, value) {
    if (!(element = $(element))) return;

    if (arguments.length === 2) {
      Element.getStorage(element).update(key);
    } else {
      Element.getStorage(element).set(key, value);
    }

    return element;
  },

  retrieve: function(element, key, defaultValue) {
    if (!(element = $(element))) return;
    var hash = Element.getStorage(element), value = hash.get(key);

    if (Object.isUndefined(value)) {
      hash.set(key, defaultValue);
      value = defaultValue;
    }

    return value;
  },

  clone: function(element, deep) {
    if (!(element = $(element))) return;
    var clone = element.cloneNode(deep);
    clone._prototypeUID = void 0;
    if (deep) {
      var descendants = Element.select(clone, '*'),
          i = descendants.length;
      while (i--) {
        descendants[i]._prototypeUID = void 0;
      }
    }
    return Element.extend(clone);
  }
});
/* 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();

    if (this.shouldUseSelectorsAPI()) {
      this.mode = 'selectorsAPI';
    } else if (this.shouldUseXPath()) {
      this.mode = 'xpath';
      this.compileXPathMatcher();
    } else {
      this.mode = "normal";
      this.compileMatcher();
    }

  },

  shouldUseXPath: (function() {

    var IS_DESCENDANT_SELECTOR_BUGGY = (function(){
      var isBuggy = false;
      if (document.evaluate && window.XPathResult) {
        var el = document.createElement('div');
        el.innerHTML = '<ul><li></li></ul><div><ul><li></li></ul></div>';

        var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
          "//*[local-name()='li' or local-name()='LI']";

        var result = document.evaluate(xpath, el, null,
          XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

        isBuggy = (result.snapshotLength !== 2);
        el = null;
      }
      return isBuggy;
    })();

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

      var e = this.expression;

      if (Prototype.Browser.WebKit &&
       (e.include("-of-type") || e.include(":empty")))
        return false;

      if ((/(\[[\w-]*?:|:checked)/).test(e))
        return false;

      if (IS_DESCENDANT_SELECTOR_BUGGY) return false;

      return true;
    }

  })(),

  shouldUseSelectorsAPI: function() {
    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

    if (Selector.CASE_INSENSITIVE_CLASS_NAMES) return false;

    if (!Selector._div) Selector._div = new Element('div');

    try {
      Selector._div.querySelector(this.expression);
    } catch(e) {
      return false;
    }

    return true;
  },

  compileMatcher: function() {
    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m, len = ps.length, name;

    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 = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[name]) ? c[name](m) :
            new Template(c[name]).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, len = ps.length, name;

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

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        name = ps[i].name;
        if (m = e.match(ps[i].re)) {
          this.matcher.push(Object.isFunction(x[name]) ? x[name](m) :
            new Template(x[name]).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;
    var e = this.expression, results;

    switch (this.mode) {
      case 'selectorsAPI':
        if (root !== document) {
          var oldId = root.id, id = $(root).identify();
          id = id.replace(/([\.:])/g, "\\$1");
          e = "#" + id + " " + e;
        }

        results = $A(root.querySelectorAll(e)).map(Element.extend);
        root.id = oldId;

        return results;
      case 'xpath':
        return document._getElementsByXPath(this.xpath, root);
      default:
       return this.matcher(root);
    }
  },

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

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

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          if (as[name]) {
            this.tokens.push([name, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            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() + ">";
  }
});

if (Prototype.BrowserFeatures.SelectorsAPI &&
 document.compatMode === 'BackCompat') {
  Selector.CASE_INSENSITIVE_CLASS_NAMES = (function(){
    var div = document.createElement('div'),
     span = document.createElement('span');

    div.id = "prototype_test_id";
    span.className = 'Test';
    div.appendChild(span);
    var isIgnored = (div.querySelector('#prototype_test_id .test') !== null);
    div = span = null;
    return isIgnored;
  })();
}

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)]",
      'checked':     "[@checked]",
      'disabled':    "[(@disabled) and (@type!='hidden')]",
      'enabled':     "[not(@disabled) and (@type!='hidden')]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v, len = p.length, name;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i = 0; i<len; i++) {
            name = p[i].name
            if (m = e.match(p[i].re)) {
              v = Object.isFunction(x[name]) ? x[name](m) : new Template(x[name]).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: [
    { name: 'laterSibling', re: /^\s*~\s*/ },
    { name: 'child',        re: /^\s*>\s*/ },
    { name: 'adjacent',     re: /^\s*\+\s*/ },
    { name: 'descendant',   re: /^\s/ },

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

  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: {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

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

    unmark: (function(){

      var PROPERTIES_ATTRIBUTES_MAP = (function(){
        var el = document.createElement('div'),
            isBuggy = false,
            propName = '_countedByPrototype',
            value = 'x'
        el[propName] = value;
        isBuggy = (el.getAttribute(propName) === value);
        el = null;
        return isBuggy;
      })();

      return PROPERTIES_ATTRIBUTES_MAP ?
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node.removeAttribute('_countedByPrototype');
          return nodes;
        } :
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node._countedByPrototype = void 0;
          return nodes;
        }
    })(),

    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++;
      }
    },

    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (typeof (n = nodes[i])._countedByPrototype == 'undefined') {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    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;
    },

    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          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 (root == document) {
        if (!targetNode) return [];
        if (!nodes) return [targetNode];
      } else {
        if (!root.sourceIndex || root.sourceIndex < 1) {
          var nodes = root.getElementsByTagName('*');
          for (var j = 0, node; node = nodes[j]; j++) {
            if (node.id === id) return [node];
          }
        }
      }

      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);
    },

    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;
      });
    },

    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++) {
        if (node.tagName == '!' || node.firstChild) 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 && (!node.type || node.type !== 'hidden'))
          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 == v || nv && nv.startsWith(v); },
    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
    '*=': function(nv, v) { return nv == v || nv && 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, {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}

var Form = {
  reset: function(form) {
    form = $(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 != 'file' && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            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) {
    var elements = $(form).getElementsByTagName('*'),
        element,
        arr = [ ],
        serializers = Form.Element.Serializers;
    for (var i = 0; element = elements[i]; i++) {
      arr.push(element);
    }
    return arr.inject([], function(elements, child) {
      if (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)$/i.test(element.tagName);
    });
  },

  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 = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !(/^(?:button|reset|submit)$/i.test(element.type))))
        element.select();
    } catch (e) { }
    return element;
  },

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

  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) {
    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);
  }
});
(function() {

  var 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: {}
  };

  var docEl = document.documentElement;
  var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
    && 'onmouseleave' in docEl;

  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);
    };
  }

  function isLeftClick(event)   { return _isButton(event, 0) }

  function isMiddleClick(event) { return _isButton(event, 1) }

  function isRightClick(event)  { return _isButton(event, 2) }

  function element(event) {
    event = Event.extend(event);

    var node = event.target, type = event.type,
     currentTarget = event.currentTarget;

    if (currentTarget && currentTarget.tagName) {
      if (type === 'load' || type === 'error' ||
        (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
          && currentTarget.type === 'radio'))
            node = currentTarget;
    }

    if (node.nodeType == Node.TEXT_NODE)
      node = node.parentNode;

    return Element.extend(node);
  }

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

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

  function pointerX(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollLeft: 0 };

    return event.pageX || (event.clientX +
      (docElement.scrollLeft || body.scrollLeft) -
      (docElement.clientLeft || 0));
  }

  function pointerY(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollTop: 0 };

    return  event.pageY || (event.clientY +
       (docElement.scrollTop || body.scrollTop) -
       (docElement.clientTop || 0));
  }


  function stop(event) {
    Event.extend(event);
    event.preventDefault();
    event.stopPropagation();

    event.stopped = true;
  }

  Event.Methods = {
    isLeftClick: isLeftClick,
    isMiddleClick: isMiddleClick,
    isRightClick: isRightClick,

    element: element,
    findElement: findElement,

    pointer: pointer,
    pointerX: pointerX,
    pointerY: pointerY,

    stop: stop
  };


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

  if (Prototype.Browser.IE) {
    function _relatedTarget(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);
    }

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

    Event.extend = function(event, element) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);

      Object.extend(event, {
        target: event.srcElement || element,
        relatedTarget: _relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });

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

  function _createResponder(element, eventName, handler) {
    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) {
      CACHE.push(element);
      registry = Element.retrieve(element, 'prototype_event_registry', $H());
    }

    var respondersForEvent = registry.get(eventName);
    if (Object.isUndefined(respondersForEvent)) {
      respondersForEvent = [];
      registry.set(eventName, respondersForEvent);
    }

    if (respondersForEvent.pluck('handler').include(handler)) return false;

    var responder;
    if (eventName.include(":")) {
      responder = function(event) {
        if (Object.isUndefined(event.eventName))
          return false;

        if (event.eventName !== eventName)
          return false;

        Event.extend(event, element);
        handler.call(element, event);
      };
    } else {
      if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
       (eventName === "mouseenter" || eventName === "mouseleave")) {
        if (eventName === "mouseenter" || eventName === "mouseleave") {
          responder = function(event) {
            Event.extend(event, element);

            var parent = event.relatedTarget;
            while (parent && parent !== element) {
              try { parent = parent.parentNode; }
              catch(e) { parent = element; }
            }

            if (parent === element) return;

            handler.call(element, event);
          };
        }
      } else {
        responder = function(event) {
          Event.extend(event, element);
          handler.call(element, event);
        };
      }
    }

    responder.handler = handler;
    respondersForEvent.push(responder);
    return responder;
  }

  function _destroyCache() {
    for (var i = 0, length = CACHE.length; i < length; i++) {
      Event.stopObserving(CACHE[i]);
      CACHE[i] = null;
    }
  }

  var CACHE = [];

  if (Prototype.Browser.IE)
    window.attachEvent('onunload', _destroyCache);

  if (Prototype.Browser.WebKit)
    window.addEventListener('unload', Prototype.emptyFunction, false);


  var _getDOMEventName = Prototype.K;

  if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
    _getDOMEventName = function(eventName) {
      var translations = { mouseenter: "mouseover", mouseleave: "mouseout" };
      return eventName in translations ? translations[eventName] : eventName;
    };
  }

  function observe(element, eventName, handler) {
    element = $(element);

    var responder = _createResponder(element, eventName, handler);

    if (!responder) return element;

    if (eventName.include(':')) {
      if (element.addEventListener)
        element.addEventListener("dataavailable", responder, false);
      else {
        element.attachEvent("ondataavailable", responder);
        element.attachEvent("onfilterchange", responder);
      }
    } else {
      var actualEventName = _getDOMEventName(eventName);

      if (element.addEventListener)
        element.addEventListener(actualEventName, responder, false);
      else
        element.attachEvent("on" + actualEventName, responder);
    }

    return element;
  }

  function stopObserving(element, eventName, handler) {
    element = $(element);

    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) return element;

    if (eventName && !handler) {
      var responders = registry.get(eventName);

      if (Object.isUndefined(responders)) return element;

      responders.each( function(r) {
        Element.stopObserving(element, eventName, r.handler);
      });
      return element;
    } else if (!eventName) {
      registry.each( function(pair) {
        var eventName = pair.key, responders = pair.value;

        responders.each( function(r) {
          Element.stopObserving(element, eventName, r.handler);
        });
      });
      return element;
    }

    var responders = registry.get(eventName);

    if (!responders) return;

    var responder = responders.find( function(r) { return r.handler === handler; });
    if (!responder) return element;

    var actualEventName = _getDOMEventName(eventName);

    if (eventName.include(':')) {
      if (element.removeEventListener)
        element.removeEventListener("dataavailable", responder, false);
      else {
        element.detachEvent("ondataavailable", responder);
        element.detachEvent("onfilterchange",  responder);
      }
    } else {
      if (element.removeEventListener)
        element.removeEventListener(actualEventName, responder, false);
      else
        element.detachEvent('on' + actualEventName, responder);
    }

    registry.set(eventName, responders.without(responder));

    return element;
  }

  function fire(element, eventName, memo, bubble) {
    element = $(element);

    if (Object.isUndefined(bubble))
      bubble = true;

    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 = bubble ? 'ondataavailable' : 'onfilterchange';
    }

    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);

  Object.extend(Event, {
    fire:          fire,
    observe:       observe,
    stopObserving: stopObserving
  });

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving
  });

  Object.extend(document, {
    fire:          fire.methodize(),

    observe:       observe.methodize(),

    stopObserving: stopObserving.methodize(),

    loaded:        false
  });

  if (window.Event) Object.extend(window.Event, Event);
  else window.Event = Event;
})();

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

  var timer;

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

  function checkReadyState() {
    if (document.readyState === 'complete') {
      document.stopObserving('readystatechange', checkReadyState);
      fireContentLoadedEvent();
    }
  }

  function pollDoScroll() {
    try { document.documentElement.doScroll('left'); }
    catch(e) {
      timer = pollDoScroll.defer();
      return;
    }
    fireContentLoadedEvent();
  }

  if (document.addEventListener) {
    document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
  } else {
    document.observe('readystatechange', checkReadyState);
    if (window == top)
      timer = pollDoScroll.defer();
  }

  Event.observe(window, 'load', fireContentLoadedEvent);
})();

Element.addMethods();

/*------------------------------- 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');

var Position = {
  includeScrollOffsets: false,

  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  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);
  },

  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;
  },


  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);

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


// ----

// script.aculo.us effects.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 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/

String.prototype.parseColor=function(){var a="#";if(this.slice(0,4)=="rgb("){var c=this.slice(4,this.length-1).split(",");var b=0;do{a+=parseInt(c[b]).toColorPart()}while(++b<3)}else{if(this.slice(0,1)=="#"){if(this.length==4){for(var b=1;b<4;b++){a+=(this.charAt(b)+this.charAt(b)).toLowerCase()}}if(this.length==7){a=this.toLowerCase()}}}return(a.length==7?a:(arguments[0]||this))};Element.collectTextNodes=function(a){return $A($(a).childNodes).collect(function(b){return(b.nodeType==3?b.nodeValue:(b.hasChildNodes()?Element.collectTextNodes(b):""))}).flatten().join("")};Element.collectTextNodesIgnoreClass=function(a,b){return $A($(a).childNodes).collect(function(c){return(c.nodeType==3?c.nodeValue:((c.hasChildNodes()&&!Element.hasClassName(c,b))?Element.collectTextNodesIgnoreClass(c,b):""))}).flatten().join("")};Element.setContentZoom=function(a,b){a=$(a);a.setStyle({fontSize:(b/100)+"em"});if(Prototype.Browser.WebKit){window.scrollBy(0,0)}return a};Element.getInlineOpacity=function(a){return $(a).style.opacity||""};Element.forceRerendering=function(a){try{a=$(a);var c=document.createTextNode(" ");a.appendChild(c);a.removeChild(c)}catch(b){}};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(a){return(-Math.cos(a*Math.PI)/2)+0.5},reverse:function(a){return 1-a},flicker:function(a){var a=((-Math.cos(a*Math.PI)/4)+0.75)+Math.random()/4;return a>1?1:a},wobble:function(a){return(-Math.cos(a*Math.PI*(9*a))/2)+0.5},pulse:function(b,a){return(-Math.cos((b*((a||5)-0.5)*2)*Math.PI)/2)+0.5},spring:function(a){return 1-(Math.cos(a*4.5*Math.PI)*Math.exp(-a*6))},none:function(a){return 0},full:function(a){return 1}},DefaultOptions:{duration:1,fps:100,sync:false,from:0,to:1,delay:0,queue:"parallel"},tagifyText:function(a){var b="position:relative";if(Prototype.Browser.IE){b+=";zoom:1"}a=$(a);$A(a.childNodes).each(function(c){if(c.nodeType==3){c.nodeValue.toArray().each(function(d){a.insertBefore(new Element("span",{style:b}).update(d==" "?String.fromCharCode(160):d),c)});Element.remove(c)}})},multiple:function(b,c){var e;if(((typeof b=="object")||Object.isFunction(b))&&(b.length)){e=b}else{e=$(b).childNodes}var a=Object.extend({speed:0.1,delay:0},arguments[2]||{});var d=a.delay;$A(e).each(function(g,f){new c(g,Object.extend(a,{delay:f*a.speed+d}))})},PAIRS:{slide:["SlideDown","SlideUp"],blind:["BlindDown","BlindUp"],appear:["Appear","Fade"]},toggle:function(b,c){b=$(b);c=(c||"appear").toLowerCase();var a=Object.extend({queue:{position:"end",scope:(b.id||"global"),limit:1}},arguments[2]||{});Effect[b.visible()?Effect.PAIRS[c][1]:Effect.PAIRS[c][0]](b,a)}};Effect.DefaultOptions.transition=Effect.Transitions.sinoidal;Effect.ScopedQueue=Class.create(Enumerable,{initialize:function(){this.effects=[];this.interval=null},_each:function(a){this.effects._each(a)},add:function(b){var c=new Date().getTime();var a=Object.isString(b.options.queue)?b.options.queue:b.options.queue.position;switch(a){case"front":this.effects.findAll(function(d){return d.state=="idle"}).each(function(d){d.startOn+=b.finishOn;d.finishOn+=b.finishOn});break;case"with-last":c=this.effects.pluck("startOn").max()||c;break;case"end":c=this.effects.pluck("finishOn").max()||c;break}b.startOn+=c;b.finishOn+=c;if(!b.options.queue.limit||(this.effects.length<b.options.queue.limit)){this.effects.push(b)}if(!this.interval){this.interval=setInterval(this.loop.bind(this),15)}},remove:function(a){this.effects=this.effects.reject(function(b){return b==a});if(this.effects.length==0){clearInterval(this.interval);this.interval=null}},loop:function(){var c=new Date().getTime();for(var b=0,a=this.effects.length;b<a;b++){this.effects[b]&&this.effects[b].loop(c)}}});Effect.Queues={instances:$H(),get:function(a){if(!Object.isString(a)){return a}return this.instances.get(a)||this.instances.set(a,new Effect.ScopedQueue())}};Effect.Queue=Effect.Queues.get("global");Effect.Base=Class.create({position:null,start:function(a){function b(d,c){return((d[c+"Internal"]?"this.options."+c+"Internal(this);":"")+(d[c]?"this.options."+c+"(this);":""))}if(a&&a.transition===false){a.transition=Effect.Transitions.linear}this.options=Object.extend(Object.extend({},Effect.DefaultOptions),a||{});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;this.render=(function(){function c(e,d){if(e.options[d+"Internal"]){e.options[d+"Internal"](e)}if(e.options[d]){e.options[d](e)}}return function(d){if(this.state==="idle"){this.state="running";c(this,"beforeSetup");if(this.setup){this.setup()}c(this,"afterSetup")}if(this.state==="running"){d=(this.options.transition(d)*this.fromToDelta)+this.options.from;this.position=d;c(this,"beforeUpdate");if(this.update){this.update(d)}c(this,"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(c){if(c>=this.startOn){if(c>=this.finishOn){this.render(1);this.cancel();this.event("beforeFinish");if(this.finish){this.finish()}this.event("afterFinish");return}var b=(c-this.startOn)/this.totalTime,a=(b*this.totalFrames).round();if(a>this.currentFrame){this.render(b);this.currentFrame=a}}},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(a){if(this.options[a+"Internal"]){this.options[a+"Internal"](this)}if(this.options[a]){this.options[a](this)}},inspect:function(){var a=$H();for(property in this){if(!Object.isFunction(this[property])){a.set(property,this[property])}}return"#<Effect:"+a.inspect()+",options:"+$H(this.options).inspect()+">"}});Effect.Parallel=Class.create(Effect.Base,{initialize:function(a){this.effects=a||[];this.start(arguments[1])},update:function(a){this.effects.invoke("render",a)},finish:function(a){this.effects.each(function(b){b.render(1);b.cancel();b.event("beforeFinish");if(b.finish){b.finish(a)}b.event("afterFinish")})}});Effect.Tween=Class.create(Effect.Base,{initialize:function(c,f,e){c=Object.isString(c)?$(c):c;var b=$A(arguments),d=b.last(),a=b.length==5?b[3]:null;this.method=Object.isFunction(d)?d.bind(c):Object.isFunction(c[d])?c[d].bind(c):function(g){c[d]=g};this.start(Object.extend({from:f,to:e},a||{}))},update:function(a){this.method(a)}});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(b){this.element=$(b);if(!this.element){throw (Effect._elementDoesNotExistError)}if(Prototype.Browser.IE&&(!this.element.currentStyle.hasLayout)){this.element.setStyle({zoom:1})}var a=Object.extend({from:this.element.getOpacity()||0,to:1},arguments[1]||{});this.start(a)},update:function(a){this.element.setOpacity(a)}});Effect.Move=Class.create(Effect.Base,{initialize:function(b){this.element=$(b);if(!this.element){throw (Effect._elementDoesNotExistError)}var a=Object.extend({x:0,y:0,mode:"relative"},arguments[1]||{});this.start(a)},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(a){this.element.setStyle({left:(this.options.x*a+this.originalLeft).round()+"px",top:(this.options.y*a+this.originalTop).round()+"px"})}});Effect.MoveBy=function(b,a,c){return new Effect.Move(b,Object.extend({x:c,y:a},arguments[3]||{}))};Effect.Scale=Class.create(Effect.Base,{initialize:function(b,c){this.element=$(b);if(!this.element){throw (Effect._elementDoesNotExistError)}var a=Object.extend({scaleX:true,scaleY:true,scaleContent:true,scaleFromCenter:false,scaleMode:"box",scaleFrom:100,scaleTo:c},arguments[2]||{});this.start(a)},setup:function(){this.restoreAfterFinish=this.options.restoreAfterFinish||false;this.elementPositioning=this.element.getStyle("position");this.originalStyle={};["top","left","width","height","fontSize"].each(function(b){this.originalStyle[b]=this.element.style[b]}.bind(this));this.originalTop=this.element.offsetTop;this.originalLeft=this.element.offsetLeft;var a=this.element.getStyle("font-size")||"100%";["em","px","%","pt"].each(function(b){if(a.indexOf(b)>0){this.fontSize=parseFloat(a);this.fontSizeType=b}}.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(a){var b=(this.options.scaleFrom/100)+(this.factor*a);if(this.options.scaleContent&&this.fontSize){this.element.setStyle({fontSize:this.fontSize*b+this.fontSizeType})}this.setDimensions(this.dims[0]*b,this.dims[1]*b)},finish:function(a){if(this.restoreAfterFinish){this.element.setStyle(this.originalStyle)}},setDimensions:function(a,e){var f={};if(this.options.scaleX){f.width=e.round()+"px"}if(this.options.scaleY){f.height=a.round()+"px"}if(this.options.scaleFromCenter){var c=(a-this.dims[0])/2;var b=(e-this.dims[1])/2;if(this.elementPositioning=="absolute"){if(this.options.scaleY){f.top=this.originalTop-c+"px"}if(this.options.scaleX){f.left=this.originalLeft-b+"px"}}else{if(this.options.scaleY){f.top=-c+"px"}if(this.options.scaleX){f.left=-b+"px"}}}this.element.setStyle(f)}});Effect.Highlight=Class.create(Effect.Base,{initialize:function(b){this.element=$(b);if(!this.element){throw (Effect._elementDoesNotExistError)}var a=Object.extend({startcolor:"#ffff99"},arguments[1]||{});this.start(a)},setup:function(){if(this.element.getStyle("display")=="none"){this.cancel();return}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")}this._base=$R(0,2).map(function(a){return parseInt(this.options.startcolor.slice(a*2+1,a*2+3),16)}.bind(this));this._delta=$R(0,2).map(function(a){return parseInt(this.options.endcolor.slice(a*2+1,a*2+3),16)-this._base[a]}.bind(this))},update:function(a){this.element.setStyle({backgroundColor:$R(0,2).inject("#",function(b,c,d){return b+((this._base[d]+(this._delta[d]*a)).round().toColorPart())}.bind(this))})},finish:function(){this.element.setStyle(Object.extend(this.oldStyle,{backgroundColor:this.options.restorecolor}))}});Effect.ScrollTo=function(c){var b=arguments[1]||{},a=document.viewport.getScrollOffsets(),d=$(c).cumulativeOffset();if(b.offset){d[1]+=b.offset}return new Effect.Tween(null,a.top,d[1],b,function(e){scrollTo(a.left,e.round())})};Effect.Fade=function(c){c=$(c);var a=c.getInlineOpacity();var b=Object.extend({from:c.getOpacity()||1,to:0,afterFinishInternal:function(d){if(d.options.to!=0){return}d.element.hide().setStyle({opacity:a})}},arguments[1]||{});return new Effect.Opacity(c,b)};Effect.Appear=function(b){b=$(b);var a=Object.extend({from:(b.getStyle("display")=="none"?0:b.getOpacity()||0),to:1,afterFinishInternal:function(c){c.element.forceRerendering()},beforeSetup:function(c){c.element.setOpacity(c.options.from).show()}},arguments[1]||{});return new Effect.Opacity(b,a)};Effect.Puff=function(b){b=$(b);var a={opacity:b.getInlineOpacity(),position:b.getStyle("position"),top:b.style.top,left:b.style.left,width:b.style.width,height:b.style.height};return new Effect.Parallel([new Effect.Scale(b,200,{sync:true,scaleFromCenter:true,scaleContent:true,restoreAfterFinish:true}),new Effect.Opacity(b,{sync:true,to:0})],Object.extend({duration:1,beforeSetupInternal:function(c){Position.absolutize(c.effects[0].element)},afterFinishInternal:function(c){c.effects[0].element.hide().setStyle(a)}},arguments[1]||{}))};Effect.BlindUp=function(a){a=$(a);a.makeClipping();return new Effect.Scale(a,0,Object.extend({scaleContent:false,scaleX:false,restoreAfterFinish:true,afterFinishInternal:function(b){b.element.hide().undoClipping()}},arguments[1]||{}))};Effect.BlindDown=function(b){b=$(b);var a=b.getDimensions();return new Effect.Scale(b,100,Object.extend({scaleContent:false,scaleX:false,scaleFrom:0,scaleMode:{originalHeight:a.height,originalWidth:a.width},restoreAfterFinish:true,afterSetup:function(c){c.element.makeClipping().setStyle({height:"0px"}).show()},afterFinishInternal:function(c){c.element.undoClipping()}},arguments[1]||{}))};Effect.SwitchOff=function(b){b=$(b);var a=b.getInlineOpacity();return new Effect.Appear(b,Object.extend({duration:0.4,from:0,transition:Effect.Transitions.flicker,afterFinishInternal:function(c){new Effect.Scale(c.element,1,{duration:0.3,scaleFromCenter:true,scaleX:false,scaleContent:false,restoreAfterFinish:true,beforeSetup:function(d){d.element.makePositioned().makeClipping()},afterFinishInternal:function(d){d.element.hide().undoClipping().undoPositioned().setStyle({opacity:a})}})}},arguments[1]||{}))};Effect.DropOut=function(b){b=$(b);var a={top:b.getStyle("top"),left:b.getStyle("left"),opacity:b.getInlineOpacity()};return new Effect.Parallel([new Effect.Move(b,{x:0,y:100,sync:true}),new Effect.Opacity(b,{sync:true,to:0})],Object.extend({duration:0.5,beforeSetup:function(c){c.effects[0].element.makePositioned()},afterFinishInternal:function(c){c.effects[0].element.hide().undoPositioned().setStyle(a)}},arguments[1]||{}))};Effect.Shake=function(d){d=$(d);var b=Object.extend({distance:20,duration:0.5},arguments[1]||{});var e=parseFloat(b.distance);var c=parseFloat(b.duration)/10;var a={top:d.getStyle("top"),left:d.getStyle("left")};return new Effect.Move(d,{x:e,y:0,duration:c,afterFinishInternal:function(f){new Effect.Move(f.element,{x:-e*2,y:0,duration:c*2,afterFinishInternal:function(g){new Effect.Move(g.element,{x:e*2,y:0,duration:c*2,afterFinishInternal:function(h){new Effect.Move(h.element,{x:-e*2,y:0,duration:c*2,afterFinishInternal:function(i){new Effect.Move(i.element,{x:e*2,y:0,duration:c*2,afterFinishInternal:function(j){new Effect.Move(j.element,{x:-e,y:0,duration:c,afterFinishInternal:function(k){k.element.undoPositioned().setStyle(a)}})}})}})}})}})}})};Effect.SlideDown=function(c){c=$(c).cleanWhitespace();var a=c.down().getStyle("bottom");var b=c.getDimensions();return new Effect.Scale(c,100,Object.extend({scaleContent:false,scaleX:false,scaleFrom:window.opera?0:1,scaleMode:{originalHeight:b.height,originalWidth:b.width},restoreAfterFinish:true,afterSetup:function(d){d.element.makePositioned();d.element.down().makePositioned();if(window.opera){d.element.setStyle({top:""})}d.element.makeClipping().setStyle({height:"0px"}).show()},afterUpdateInternal:function(d){d.element.down().setStyle({bottom:(d.dims[0]-d.element.clientHeight)+"px"})},afterFinishInternal:function(d){d.element.undoClipping().undoPositioned();d.element.down().undoPositioned().setStyle({bottom:a})}},arguments[1]||{}))};Effect.SlideUp=function(c){c=$(c).cleanWhitespace();var a=c.down().getStyle("bottom");var b=c.getDimensions();return new Effect.Scale(c,window.opera?0:1,Object.extend({scaleContent:false,scaleX:false,scaleMode:"box",scaleFrom:100,scaleMode:{originalHeight:b.height,originalWidth:b.width},restoreAfterFinish:true,afterSetup:function(d){d.element.makePositioned();d.element.down().makePositioned();if(window.opera){d.element.setStyle({top:""})}d.element.makeClipping().show()},afterUpdateInternal:function(d){d.element.down().setStyle({bottom:(d.dims[0]-d.element.clientHeight)+"px"})},afterFinishInternal:function(d){d.element.hide().undoClipping().undoPositioned();d.element.down().undoPositioned().setStyle({bottom:a})}},arguments[1]||{}))};Effect.Squish=function(a){return new Effect.Scale(a,window.opera?1:0,{restoreAfterFinish:true,beforeSetup:function(b){b.element.makeClipping()},afterFinishInternal:function(b){b.element.hide().undoClipping()}})};Effect.Grow=function(c){c=$(c);var b=Object.extend({direction:"center",moveTransition:Effect.Transitions.sinoidal,scaleTransition:Effect.Transitions.sinoidal,opacityTransition:Effect.Transitions.full},arguments[1]||{});var a={top:c.style.top,left:c.style.left,height:c.style.height,width:c.style.width,opacity:c.getInlineOpacity()};var g=c.getDimensions();var h,f;var e,d;switch(b.direction){case"top-left":h=f=e=d=0;break;case"top-right":h=g.width;f=d=0;e=-g.width;break;case"bottom-left":h=e=0;f=g.height;d=-g.height;break;case"bottom-right":h=g.width;f=g.height;e=-g.width;d=-g.height;break;case"center":h=g.width/2;f=g.height/2;e=-g.width/2;d=-g.height/2;break}return new Effect.Move(c,{x:h,y:f,duration:0.01,beforeSetup:function(i){i.element.hide().makeClipping().makePositioned()},afterFinishInternal:function(i){new Effect.Parallel([new Effect.Opacity(i.element,{sync:true,to:1,from:0,transition:b.opacityTransition}),new Effect.Move(i.element,{x:e,y:d,sync:true,transition:b.moveTransition}),new Effect.Scale(i.element,100,{scaleMode:{originalHeight:g.height,originalWidth:g.width},sync:true,scaleFrom:window.opera?1:0,transition:b.scaleTransition,restoreAfterFinish:true})],Object.extend({beforeSetup:function(j){j.effects[0].element.setStyle({height:"0px"}).show()},afterFinishInternal:function(j){j.effects[0].element.undoClipping().undoPositioned().setStyle(a)}},b))}})};Effect.Shrink=function(c){c=$(c);var b=Object.extend({direction:"center",moveTransition:Effect.Transitions.sinoidal,scaleTransition:Effect.Transitions.sinoidal,opacityTransition:Effect.Transitions.none},arguments[1]||{});var a={top:c.style.top,left:c.style.left,height:c.style.height,width:c.style.width,opacity:c.getInlineOpacity()};var f=c.getDimensions();var e,d;switch(b.direction){case"top-left":e=d=0;break;case"top-right":e=f.width;d=0;break;case"bottom-left":e=0;d=f.height;break;case"bottom-right":e=f.width;d=f.height;break;case"center":e=f.width/2;d=f.height/2;break}return new Effect.Parallel([new Effect.Opacity(c,{sync:true,to:0,from:1,transition:b.opacityTransition}),new Effect.Scale(c,window.opera?1:0,{sync:true,transition:b.scaleTransition,restoreAfterFinish:true}),new Effect.Move(c,{x:e,y:d,sync:true,transition:b.moveTransition})],Object.extend({beforeStartInternal:function(g){g.effects[0].element.makePositioned().makeClipping()},afterFinishInternal:function(g){g.effects[0].element.hide().undoClipping().undoPositioned().setStyle(a)}},b))};Effect.Pulsate=function(c){c=$(c);var b=arguments[1]||{},a=c.getInlineOpacity(),e=b.transition||Effect.Transitions.linear,d=function(f){return 1-e((-Math.cos((f*(b.pulses||5)*2)*Math.PI)/2)+0.5)};return new Effect.Opacity(c,Object.extend(Object.extend({duration:2,from:0,afterFinishInternal:function(f){f.element.setStyle({opacity:a})}},b),{transition:d}))};Effect.Fold=function(b){b=$(b);var a={top:b.style.top,left:b.style.left,width:b.style.width,height:b.style.height};b.makeClipping();return new Effect.Scale(b,5,Object.extend({scaleContent:false,scaleX:false,afterFinishInternal:function(c){new Effect.Scale(b,1,{scaleContent:false,scaleY:false,afterFinishInternal:function(d){d.element.hide().undoClipping().setStyle(a)}})}},arguments[1]||{}))};Effect.Morph=Class.create(Effect.Base,{initialize:function(c){this.element=$(c);if(!this.element){throw (Effect._elementDoesNotExistError)}var a=Object.extend({style:{}},arguments[1]||{});if(!Object.isString(a.style)){this.style=$H(a.style)}else{if(a.style.include(":")){this.style=a.style.parseStyle()}else{this.element.addClassName(a.style);this.style=$H(this.element.getStyles());this.element.removeClassName(a.style);var b=this.element.getStyles();this.style=this.style.reject(function(d){return d.value==b[d.key]});a.afterFinishInternal=function(d){d.element.addClassName(d.options.style);d.transforms.each(function(e){d.element.style[e.style]=""})}}}this.start(a)},setup:function(){function a(b){if(!b||["rgba(0, 0, 0, 0)","transparent"].include(b)){b="#ffffff"}b=b.parseColor();return $R(0,2).map(function(c){return parseInt(b.slice(c*2+1,c*2+3),16)})}this.transforms=this.style.map(function(g){var f=g[0],e=g[1],d=null;if(e.parseColor("#zzzzzz")!="#zzzzzz"){e=e.parseColor();d="color"}else{if(f=="opacity"){e=parseFloat(e);if(Prototype.Browser.IE&&(!this.element.currentStyle.hasLayout)){this.element.setStyle({zoom:1})}}else{if(Element.CSS_LENGTH.test(e)){var c=e.match(/^([\+\-]?[0-9\.]+)(.*)$/);e=parseFloat(c[1]);d=(c.length==3)?c[2]:null}}}var b=this.element.getStyle(f);return{style:f.camelize(),originalValue:d=="color"?a(b):parseFloat(b||0),targetValue:d=="color"?a(e):e,unit:d}}.bind(this)).reject(function(b){return((b.originalValue==b.targetValue)||(b.unit!="color"&&(isNaN(b.originalValue)||isNaN(b.targetValue))))})},update:function(a){var d={},b,c=this.transforms.length;while(c--){d[(b=this.transforms[c]).style]=b.unit=="color"?"#"+(Math.round(b.originalValue[0]+(b.targetValue[0]-b.originalValue[0])*a)).toColorPart()+(Math.round(b.originalValue[1]+(b.targetValue[1]-b.originalValue[1])*a)).toColorPart()+(Math.round(b.originalValue[2]+(b.targetValue[2]-b.originalValue[2])*a)).toColorPart():(b.originalValue+(b.targetValue-b.originalValue)*a).toFixed(3)+(b.unit===null?"":b.unit)}this.element.setStyle(d,true)}});Effect.Transform=Class.create({initialize:function(a){this.tracks=[];this.options=arguments[1]||{};this.addTracks(a)},addTracks:function(a){a.each(function(b){b=$H(b);var c=b.values().first();this.tracks.push($H({ids:b.keys().first(),effect:Effect.Morph,options:{style:c}}))}.bind(this));return this},play:function(){return new Effect.Parallel(this.tracks.map(function(a){var d=a.get("ids"),c=a.get("effect"),b=a.get("options");var e=[$(d)||$$(d)].flatten();return e.map(function(f){return new c(f,Object.extend({sync:true},b))})}).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 b,a=$H();if(Prototype.Browser.WebKit){b=new Element("div",{style:this}).style}else{String.__parseStyleElement.innerHTML='<div style="'+this+'"></div>';b=String.__parseStyleElement.childNodes[0].style}Element.CSS_PROPERTIES.each(function(c){if(b[c]){a.set(c,b[c])}});if(Prototype.Browser.IE&&this.include("opacity")){a.set("opacity",this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1])}return a};if(document.defaultView&&document.defaultView.getComputedStyle){Element.getStyles=function(b){var a=document.defaultView.getComputedStyle($(b),null);return Element.CSS_PROPERTIES.inject({},function(c,d){c[d]=a[d];return c})}}else{Element.getStyles=function(b){b=$(b);var a=b.currentStyle,c;c=Element.CSS_PROPERTIES.inject({},function(d,e){d[e]=a[e];return d});if(!c.opacity){c.opacity=b.getOpacity()}return c}}Effect.Methods={morph:function(a,b){a=$(a);new Effect.Morph(a,Object.extend({style:b},arguments[2]||{}));return a},visualEffect:function(c,e,b){c=$(c);var d=e.dasherize().camelize(),a=d.charAt(0).toUpperCase()+d.substring(1);new Effect[a](c,b);return c},highlight:function(b,a){b=$(b);new Effect.Highlight(b,a);return b}};$w("fade appear grow shrink fold blindUp blindDown slideUp slideDown pulsate shake puff squish switchOff dropOut").each(function(a){Effect.Methods[a]=function(c,b){c=$(c);Effect[a.charAt(0).toUpperCase()+a.substring(1)](c,b);return c}});$w("getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles").each(function(a){Effect.Methods[a]=Element[a]});Element.addMethods(Effect.Methods);

// ----

// script.aculo.us builder.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 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"},node:function(a){a=a.toUpperCase();var g=this.NODEMAP[a]||"div";var b=document.createElement(g);try{b.innerHTML="<"+a+"></"+a+">"}catch(f){}var d=b.firstChild||null;if(d&&(d.tagName.toUpperCase()!=a)){d=d.getElementsByTagName(a)[0]}if(!d){d=document.createElement(a)}if(!d){return}if(arguments[1]){if(this._isStringOrNumber(arguments[1])||(arguments[1] instanceof Array)||arguments[1].tagName){this._children(d,arguments[1])}else{var c=this._attributes(arguments[1]);if(c.length){try{b.innerHTML="<"+a+" "+c+"></"+a+">"}catch(f){}d=b.firstChild||null;if(!d){d=document.createElement(a);for(attr in arguments[1]){d[attr=="class"?"className":attr]=arguments[1][attr]}}if(d.tagName.toUpperCase()!=a){d=b.getElementsByTagName(a)[0]}}}}if(arguments[2]){this._children(d,arguments[2])}return $(d)},_text:function(a){return document.createTextNode(a)},ATTR_MAP:{className:"class",htmlFor:"for"},_attributes:function(a){var b=[];for(attribute in a){b.push((attribute in this.ATTR_MAP?this.ATTR_MAP[attribute]:attribute)+'="'+a[attribute].toString().escapeHTML().gsub(/"/,"&quot;")+'"')}return b.join(" ")},_children:function(b,a){if(a.tagName){b.appendChild(a);return}if(typeof a=="object"){a.flatten().each(function(c){if(typeof c=="object"){b.appendChild(c)}else{if(Builder._isStringOrNumber(c)){b.appendChild(Builder._text(c))}}})}else{if(Builder._isStringOrNumber(a)){b.appendChild(Builder._text(a))}}},_isStringOrNumber:function(a){return(typeof a=="string"||typeof a=="number")},build:function(b){var a=this.node("div");$(a).update(b.strip());return a.down()},dump:function(b){if(typeof b!="object"&&typeof b!="function"){b=window}var a=("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+/);a.each(function(c){b[c]=function(){return Builder.node.apply(Builder,[c].concat($A(arguments)))}})}};

// ----

// script.aculo.us dragdrop.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 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(a){this.drops=this.drops.reject(function(b){return b.element==$(a)})},add:function(b){b=$(b);var a=Object.extend({greedy:true,hoverclass:null,tree:false},arguments[1]||{});if(a.containment){a._containers=[];var c=a.containment;if(Object.isArray(c)){c.each(function(d){a._containers.push($(d))})}else{a._containers.push($(c))}}if(a.accept){a.accept=[a.accept].flatten()}Element.makePositioned(b);a.element=b;this.drops.push(a)},findDeepestChild:function(a){deepest=a[0];for(i=1;i<a.length;++i){if(Element.isParent(a[i].element,deepest.element)){deepest=a[i]}}return deepest},isContained:function(b,a){var c;if(a.tree){c=b.treeNode}else{c=b.parentNode}return a._containers.detect(function(d){return c==d})},isAffected:function(a,c,b){return((b.element!=c)&&((!b._containers)||this.isContained(c,b))&&((!b.accept)||(Element.classNames(c).detect(function(d){return b.accept.include(d)})))&&Position.within(b.element,a[0],a[1]))},deactivate:function(a){if(a.hoverclass){Element.removeClassName(a.element,a.hoverclass)}this.last_active=null},activate:function(a){if(a.hoverclass){Element.addClassName(a.element,a.hoverclass)}this.last_active=a},show:function(a,c){if(!this.drops.length){return}var b,d=[];this.drops.each(function(e){if(Droppables.isAffected(a,c,e)){d.push(e)}});if(d.length>0){b=Droppables.findDeepestChild(d)}if(this.last_active&&this.last_active!=b){this.deactivate(this.last_active)}if(b){Position.within(b.element,a[0],a[1]);if(b.onHover){b.onHover(c,b.element,Position.overlap(b.overlap,b.element))}if(b!=this.last_active){Droppables.activate(b)}}},fire:function(b,a){if(!this.last_active){return}Position.prepare();if(this.isAffected([Event.pointerX(b),Event.pointerY(b)],a,this.last_active)){if(this.last_active.onDrop){this.last_active.onDrop(a,this.last_active.element,b);return true}}},reset:function(){if(this.last_active){this.deactivate(this.last_active)}}};var Draggables={drags:[],observers:[],register:function(a){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(a)},unregister:function(a){this.drags=this.drags.reject(function(b){return b==a});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(a){if(a.options.delay){this._timeout=setTimeout(function(){Draggables._timeout=null;window.focus();Draggables.activeDraggable=a}.bind(this),a.options.delay)}else{window.focus();this.activeDraggable=a}},deactivate:function(){this.activeDraggable=null},updateDrag:function(a){if(!this.activeDraggable){return}var b=[Event.pointerX(a),Event.pointerY(a)];if(this._lastPointer&&(this._lastPointer.inspect()==b.inspect())){return}this._lastPointer=b;this.activeDraggable.updateDrag(a,b)},endDrag:function(a){if(this._timeout){clearTimeout(this._timeout);this._timeout=null}if(!this.activeDraggable){return}this._lastPointer=null;this.activeDraggable.endDrag(a);this.activeDraggable=null},keyPress:function(a){if(this.activeDraggable){this.activeDraggable.keyPress(a)}},addObserver:function(a){this.observers.push(a);this._cacheObserverCallbacks()},removeObserver:function(a){this.observers=this.observers.reject(function(b){return b.element==a});this._cacheObserverCallbacks()},notify:function(b,a,c){if(this[b+"Count"]>0){this.observers.each(function(d){if(d[b]){d[b](b,a,c)}})}if(a.options[b]){a.options[b](a,c)}},_cacheObserverCallbacks:function(){["onStart","onEnd","onDrag"].each(function(a){Draggables[a+"Count"]=Draggables.observers.select(function(b){return b[a]}).length})}};var Draggable=Class.create({initialize:function(b){var c={handle:false,reverteffect:function(f,e,d){var g=Math.sqrt(Math.abs(e^2)+Math.abs(d^2))*0.02;new Effect.Move(f,{x:-d,y:-e,duration:g,queue:{scope:"_draggable",position:"end"}})},endeffect:function(e){var d=Object.isNumber(e._opacity)?e._opacity:1;new Effect.Opacity(e,{duration:0.2,from:0.7,to:d,queue:{scope:"_draggable",position:"end"},afterFinish:function(){Draggable._dragging[e]=false}})},zindex:1000,revert:false,quiet:false,scroll:false,scrollSensitivity:20,scrollSpeed:15,snap:false,delay:0};if(!arguments[1]||Object.isUndefined(arguments[1].endeffect)){Object.extend(c,{starteffect:function(d){d._opacity=Element.getOpacity(d);Draggable._dragging[d]=true;new Effect.Opacity(d,{duration:0.2,from:d._opacity,to:0.7})}})}var a=Object.extend(c,arguments[1]||{});this.element=$(b);if(a.handle&&Object.isString(a.handle)){this.handle=this.element.down("."+a.handle,0)}if(!this.handle){this.handle=$(a.handle)}if(!this.handle){this.handle=this.element}if(a.scroll&&!a.scroll.scrollTo&&!a.scroll.outerHTML){a.scroll=$(a.scroll);this._isScrollChild=Element.childOf(this.element,a.scroll)}Element.makePositioned(this.element);this.options=a;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(a){if(!Object.isUndefined(Draggable._dragging[this.element])&&Draggable._dragging[this.element]){return}if(Event.isLeftClick(a)){var c=Event.element(a);if((tag_name=c.tagName.toUpperCase())&&(tag_name=="INPUT"||tag_name=="SELECT"||tag_name=="OPTION"||tag_name=="BUTTON"||tag_name=="TEXTAREA")){return}var b=[Event.pointerX(a),Event.pointerY(a)];var d=Position.cumulativeOffset(this.element);this.offset=[0,1].map(function(e){return(b[e]-d[e])});Draggables.activate(this);Event.stop(a)}},startDrag:function(b){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._originallyAbsolute=(this.element.getStyle("position")=="absolute");if(!this._originallyAbsolute){Position.absolutize(this.element)}this.element.parentNode.insertBefore(this._clone,this.element)}if(this.options.scroll){if(this.options.scroll==window){var a=this._getWindowScroll(this.options.scroll);this.originalScrollLeft=a.left;this.originalScrollTop=a.top}else{this.originalScrollLeft=this.options.scroll.scrollLeft;this.originalScrollTop=this.options.scroll.scrollTop}}Draggables.notify("onStart",this,b);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)}if(Prototype.Browser.WebKit){window.scrollBy(0,0)}Event.stop(event)},finishDrag:function(b,f){this.dragging=false;if(this.options.quiet){Position.prepare();var e=[Event.pointerX(b),Event.pointerY(b)];Droppables.show(e,this.element)}if(this.options.ghosting){if(!this._originallyAbsolute){Position.relativize(this.element)}delete this._originallyAbsolute;Element.remove(this._clone);this._clone=null}var g=false;if(f){g=Droppables.fire(b,this.element);if(!g){g=false}}if(g&&this.options.onDropped){this.options.onDropped(this.element)}Draggables.notify("onEnd",this,b);var a=this.options.revert;if(a&&Object.isFunction(a)){a=a(this.element)}var c=this.currentDelta();if(a&&this.options.reverteffect){if(g==0||a!="failure"){this.options.reverteffect(this.element,c[1]-this.delta[1],c[0]-this.delta[0])}}else{this.delta=c}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(a){if(a.keyCode!=Event.KEY_ESC){return}this.finishDrag(a,false);Event.stop(a)},endDrag:function(a){if(!this.dragging){return}this.stopScrolling();this.finishDrag(a,true);Event.stop(a)},draw:function(a){var g=Position.cumulativeOffset(this.element);if(this.options.ghosting){var c=Position.realOffset(this.element);g[0]+=c[0]-Position.deltaX;g[1]+=c[1]-Position.deltaY}var f=this.currentDelta();g[0]-=f[0];g[1]-=f[1];if(this.options.scroll&&(this.options.scroll!=window&&this._isScrollChild)){g[0]-=this.options.scroll.scrollLeft-this.originalScrollLeft;g[1]-=this.options.scroll.scrollTop-this.originalScrollTop}var e=[0,1].map(function(d){return(a[d]-g[d]-this.offset[d])}.bind(this));if(this.options.snap){if(Object.isFunction(this.options.snap)){e=this.options.snap(e[0],e[1],this)}else{if(Object.isArray(this.options.snap)){e=e.map(function(d,h){return(d/this.options.snap[h]).round()*this.options.snap[h]}.bind(this))}else{e=e.map(function(d){return(d/this.options.snap).round()*this.options.snap}.bind(this))}}}var b=this.element.style;if((!this.options.constraint)||(this.options.constraint=="horizontal")){b.left=e[0]+"px"}if((!this.options.constraint)||(this.options.constraint=="vertical")){b.top=e[1]+"px"}if(b.visibility=="hidden"){b.visibility=""}},stopScrolling:function(){if(this.scrollInterval){clearInterval(this.scrollInterval);this.scrollInterval=null;Draggables._lastScrollPointer=null}},startScrolling:function(a){if(!(a[0]||a[1])){return}this.scrollSpeed=[a[0]*this.options.scrollSpeed,a[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(b,a){this.element=$(b);this.observer=a;this.lastValue=Sortable.serialize(this.element)},onStart:function(){this.lastValue=Sortable.serialize(this.element)},onEnd:function(){Sortable.unmark();if(this.lastValue!=Sortable.serialize(this.element)){this.observer(this.element)}}});var Sortable={SERIALIZE_RULE:/^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,sortables:{},_findRootElement:function(a){while(a.tagName.toUpperCase()!="BODY"){if(a.id&&Sortable.sortables[a.id]){return a}a=a.parentNode}},options:function(a){a=Sortable._findRootElement($(a));if(!a){return}return Sortable.sortables[a.id]},destroy:function(a){a=$(a);var b=Sortable.sortables[a.id];if(b){Draggables.removeObserver(b.element);b.droppables.each(function(c){Droppables.remove(c)});b.draggables.invoke("destroy");delete Sortable.sortables[b.element.id]}},create:function(c){c=$(c);var b=Object.extend({element:c,tag:"li",dropOnEmpty:false,tree:false,treeTag:"ul",overlap:"vertical",constraint:"vertical",containment:c,handle:false,only:false,delay:0,hoverclass:null,ghosting:false,quiet:false,scroll:false,scrollSensitivity:20,scrollSpeed:15,format:this.SERIALIZE_RULE,elements:false,handles:false,onChange:Prototype.emptyFunction,onUpdate:Prototype.emptyFunction},arguments[1]||{});this.destroy(c);var a={revert:true,quiet:b.quiet,scroll:b.scroll,scrollSpeed:b.scrollSpeed,scrollSensitivity:b.scrollSensitivity,delay:b.delay,ghosting:b.ghosting,constraint:b.constraint,handle:b.handle};if(b.starteffect){a.starteffect=b.starteffect}if(b.reverteffect){a.reverteffect=b.reverteffect}else{if(b.ghosting){a.reverteffect=function(f){f.style.top=0;f.style.left=0}}}if(b.endeffect){a.endeffect=b.endeffect}if(b.zindex){a.zindex=b.zindex}var d={overlap:b.overlap,containment:b.containment,tree:b.tree,hoverclass:b.hoverclass,onHover:Sortable.onHover};var e={onHover:Sortable.onEmptyHover,overlap:b.overlap,containment:b.containment,hoverclass:b.hoverclass};Element.cleanWhitespace(c);b.draggables=[];b.droppables=[];if(b.dropOnEmpty||b.tree){Droppables.add(c,e);b.droppables.push(c)}(b.elements||this.findElements(c,b)||[]).each(function(h,f){var g=b.handles?$(b.handles[f]):(b.handle?$(h).select("."+b.handle)[0]:h);b.draggables.push(new Draggable(h,Object.extend(a,{handle:g})));Droppables.add(h,d);if(b.tree){h.treeNode=c}b.droppables.push(h)});if(b.tree){(Sortable.findTreeElements(c,b)||[]).each(function(f){Droppables.add(f,e);f.treeNode=c;b.droppables.push(f)})}this.sortables[c.id]=b;Draggables.addObserver(new SortableObserver(c,b.onUpdate))},findElements:function(b,a){return Element.findChildren(b,a.only,a.tree?true:false,a.tag)},findTreeElements:function(b,a){return Element.findChildren(b,a.only,a.tree?true:false,a.treeTag)},onHover:function(e,d,a){if(Element.isParent(d,e)){return}if(a>0.33&&a<0.66&&Sortable.options(d).tree){return}else{if(a>0.5){Sortable.mark(d,"before");if(d.previousSibling!=e){var b=e.parentNode;e.style.visibility="hidden";d.parentNode.insertBefore(e,d);if(d.parentNode!=b){Sortable.options(b).onChange(e)}Sortable.options(d.parentNode).onChange(e)}}else{Sortable.mark(d,"after");var c=d.nextSibling||null;if(c!=e){var b=e.parentNode;e.style.visibility="hidden";d.parentNode.insertBefore(e,c);if(d.parentNode!=b){Sortable.options(b).onChange(e)}Sortable.options(d.parentNode).onChange(e)}}}},onEmptyHover:function(e,g,h){var j=e.parentNode;var a=Sortable.options(g);if(!Element.isParent(g,e)){var f;var c=Sortable.findElements(g,{tag:a.tag,only:a.only});var b=null;if(c){var d=Element.offsetSize(g,a.overlap)*(1-h);for(f=0;f<c.length;f+=1){if(d-Element.offsetSize(c[f],a.overlap)>=0){d-=Element.offsetSize(c[f],a.overlap)}else{if(d-(Element.offsetSize(c[f],a.overlap)/2)>=0){b=f+1<c.length?c[f+1]:null;break}else{b=c[f];break}}}}g.insertBefore(e,b);Sortable.options(j).onChange(e);a.onChange(e)}},unmark:function(){if(Sortable._marker){Sortable._marker.hide()}},mark:function(b,a){var d=Sortable.options(b.parentNode);if(d&&!d.ghosting){return}if(!Sortable._marker){Sortable._marker=($("dropmarker")||Element.extend(document.createElement("DIV"))).hide().addClassName("dropmarker").setStyle({position:"absolute"});document.getElementsByTagName("body").item(0).appendChild(Sortable._marker)}var c=Position.cumulativeOffset(b);Sortable._marker.setStyle({left:c[0]+"px",top:c[1]+"px"});if(a=="after"){if(d.overlap=="horizontal"){Sortable._marker.setStyle({left:(c[0]+b.clientWidth)+"px"})}else{Sortable._marker.setStyle({top:(c[1]+b.clientHeight)+"px"})}}Sortable._marker.show()},_tree:function(e,b,f){var d=Sortable.findElements(e,b)||[];for(var c=0;c<d.length;++c){var a=d[c].id.match(b.format);if(!a){continue}var g={id:encodeURIComponent(a?a[1]:null),element:e,parent:f,children:[],position:f.children.length,container:$(d[c]).down(b.treeTag)};if(g.container){this._tree(g.container,b,g)}f.children.push(g)}return f},tree:function(d){d=$(d);var c=this.options(d);var b=Object.extend({tag:c.tag,treeTag:c.treeTag,only:c.only,name:d.id,format:c.format},arguments[1]||{});var a={id:null,parent:null,children:[],container:d,position:0};return Sortable._tree(d,b,a)},_constructIndex:function(b){var a="";do{if(b.id){a="["+b.position+"]"+a}}while((b=b.parent)!=null);return a},sequence:function(b){b=$(b);var a=Object.extend(this.options(b),arguments[1]||{});return $(this.findElements(b,a)||[]).map(function(c){return c.id.match(a.format)?c.id.match(a.format)[1]:""})},setSequence:function(b,c){b=$(b);var a=Object.extend(this.options(b),arguments[2]||{});var d={};this.findElements(b,a).each(function(e){if(e.id.match(a.format)){d[e.id.match(a.format)[1]]=[e,e.parentNode]}e.parentNode.removeChild(e)});c.each(function(e){var f=d[e];if(f){f[1].appendChild(f[0]);delete d[e]}})},serialize:function(c){c=$(c);var b=Object.extend(Sortable.options(c),arguments[1]||{});var a=encodeURIComponent((arguments[1]&&arguments[1].name)?arguments[1].name:c.id);if(b.tree){return Sortable.tree(c,arguments[1]).children.map(function(d){return[a+Sortable._constructIndex(d)+"[id]="+encodeURIComponent(d.id)].concat(d.children.map(arguments.callee))}).flatten().join("&")}else{return Sortable.sequence(c,arguments[1]).map(function(d){return a+"[]="+encodeURIComponent(d)}).join("&")}}};Element.isParent=function(b,a){if(!b.parentNode||b==a){return false}if(b.parentNode==a){return true}return Element.isParent(b.parentNode,a)};Element.findChildren=function(d,b,a,c){if(!d.hasChildNodes()){return null}c=c.toUpperCase();if(b){b=[b].flatten()}var e=[];$A(d.childNodes).each(function(g){if(g.tagName&&g.tagName.toUpperCase()==c&&(!b||(Element.classNames(g).detect(function(h){return b.include(h)})))){e.push(g)}if(a){var f=Element.findChildren(g,b,a,c);if(f){e.push(f)}}});return(e.length>0?e.flatten():[])};Element.offsetSize=function(a,b){return a["offset"+((b=="vertical"||b=="height")?"Height":"Width")]};

// ----

// script.aculo.us slider.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 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={}}Control.Slider=Class.create({initialize:function(d,a,b){var c=this;if(Object.isArray(d)){this.handles=d.collect(function(f){return $(f)})}else{this.handles=[$(d)]}this.track=$(a);this.options=b||{};this.axis=this.options.axis||"horizontal";this.increment=this.options.increment||1;this.step=parseInt(this.options.step||"1");this.range=this.options.range||$R(0,1);this.value=0;this.values=this.handles.map(function(){return 0});this.spans=this.options.spans?this.options.spans.map(function(e){return $(e)}):false;this.options.startSpan=$(this.options.startSpan||null);this.options.endSpan=$(this.options.endSpan||null);this.restricted=this.options.restricted||false;this.maximum=this.options.maximum||this.range.end;this.minimum=this.options.minimum||this.range.start;this.alignX=parseInt(this.options.alignX||"0");this.alignY=parseInt(this.options.alignY||"0");this.trackLength=this.maximumOffset()-this.minimumOffset();this.handleLength=this.isVertical()?(this.handles[0].offsetHeight!=0?this.handles[0].offsetHeight:this.handles[0].style.height.replace(/px$/,"")):(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()}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);this.handles.each(function(f,e){e=c.handles.length-1-e;c.setValue(parseFloat((Object.isArray(c.options.sliderValue)?c.options.sliderValue[e]:c.options.sliderValue)||c.range.start),e);f.makePositioned().observe("mousedown",c.eventMouseDown)});this.track.observe("mousedown",this.eventMouseDown);document.observe("mouseup",this.eventMouseUp);document.observe("mousemove",this.eventMouseMove);this.initialized=true},dispose:function(){var a=this;Event.stopObserving(this.track,"mousedown",this.eventMouseDown);Event.stopObserving(document,"mouseup",this.eventMouseUp);Event.stopObserving(document,"mousemove",this.eventMouseMove);this.handles.each(function(b){Event.stopObserving(b,"mousedown",a.eventMouseDown)})},setDisabled:function(){this.disabled=true},setEnabled:function(){this.disabled=false},getNearestValue:function(a){if(this.allowedValues){if(a>=this.allowedValues.max()){return(this.allowedValues.max())}if(a<=this.allowedValues.min()){return(this.allowedValues.min())}var c=Math.abs(this.allowedValues[0]-a);var b=this.allowedValues[0];this.allowedValues.each(function(d){var e=Math.abs(d-a);if(e<=c){b=d;c=e}});return b}if(a>this.range.end){return this.range.end}if(a<this.range.start){return this.range.start}return a},setValue:function(b,a){if(!this.active){this.activeHandleIdx=a||0;this.activeHandle=this.handles[this.activeHandleIdx];this.updateStyles()}a=a||this.activeHandleIdx||0;if(this.initialized&&this.restricted){if((a>0)&&(b<this.values[a-1])){b=this.values[a-1]}if((a<(this.handles.length-1))&&(b>this.values[a+1])){b=this.values[a+1]}}b=this.getNearestValue(b);this.values[a]=b;this.value=this.values[0];this.handles[a].style[this.isVertical()?"top":"left"]=this.translateToPx(b);this.drawSpans();if(!this.dragging||!this.event){this.updateFinished()}},setValueBy:function(b,a){this.setValue(this.values[a||this.activeHandleIdx||0]+b,a||this.activeHandleIdx||0)},translateToPx:function(a){return Math.round(((this.trackLength-this.handleLength)/(this.range.end-this.range.start))*(a-this.range.start))+"px"},translateToValue:function(a){return((a/(this.trackLength-this.handleLength)*(this.range.end-this.range.start))+this.range.start)},getRange:function(b){var a=this.values.sortBy(Prototype.K);b=b||0;return $R(a[b],a[b+1])},minimumOffset:function(){return(this.isVertical()?this.alignY:this.alignX)},maximumOffset:function(){return(this.isVertical()?(this.track.offsetHeight!=0?this.track.offsetHeight:this.track.style.height.replace(/px$/,""))-this.alignY:(this.track.offsetWidth!=0?this.track.offsetWidth:this.track.style.width.replace(/px$/,""))-this.alignX)},isVertical:function(){return(this.axis=="vertical")},drawSpans:function(){var a=this;if(this.spans){$R(0,this.spans.length-1).each(function(b){a.setSpan(a.spans[b],a.getRange(b))})}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(b,a){if(this.isVertical()){b.style.top=this.translateToPx(a.start);b.style.height=this.translateToPx(a.end-a.start+this.range.start)}else{b.style.left=this.translateToPx(a.start);b.style.width=this.translateToPx(a.end-a.start+this.range.start)}},updateStyles:function(){this.handles.each(function(a){Element.removeClassName(a,"selected")});Element.addClassName(this.activeHandle,"selected")},startDrag:function(c){if(Event.isLeftClick(c)){if(!this.disabled){this.active=true;var d=Event.element(c);var e=[Event.pointerX(c),Event.pointerY(c)];var a=d;if(a==this.track){var b=Position.cumulativeOffset(this.track);this.event=c;this.setValue(this.translateToValue((this.isVertical()?e[1]-b[1]:e[0]-b[0])-(this.handleLength/2)));var b=Position.cumulativeOffset(this.activeHandle);this.offsetX=(e[0]-b[0]);this.offsetY=(e[1]-b[1])}else{while((this.handles.indexOf(d)==-1)&&d.parentNode){d=d.parentNode}if(this.handles.indexOf(d)!=-1){this.activeHandle=d;this.activeHandleIdx=this.handles.indexOf(this.activeHandle);this.updateStyles();var b=Position.cumulativeOffset(this.activeHandle);this.offsetX=(e[0]-b[0]);this.offsetY=(e[1]-b[1])}}}Event.stop(c)}},update:function(a){if(this.active){if(!this.dragging){this.dragging=true}this.draw(a);if(Prototype.Browser.WebKit){window.scrollBy(0,0)}Event.stop(a)}},draw:function(b){var c=[Event.pointerX(b),Event.pointerY(b)];var a=Position.cumulativeOffset(this.track);c[0]-=this.offsetX+a[0];c[1]-=this.offsetY+a[1];this.event=b;this.setValue(this.translateToValue(this.isVertical()?c[1]:c[0]));if(this.initialized&&this.options.onSlide){this.options.onSlide(this.values.length>1?this.values:this.value,this)}},endDrag:function(a){if(this.active&&this.dragging){this.finishDrag(a,true);Event.stop(a)}this.active=false;this.dragging=false},finishDrag:function(a,b){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}});

// ----

// script.aculo.us sound.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// Based on code created by Jules Gravinese (http://www.webveteran.com/)
//
// 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/

Sound={tracks:{},_enabled:true,template:new Template('<embed style="height:0" id="sound_#{track}_#{id}" src="#{url}" loop="false" autostart="true" hidden="true"/>'),enable:function(){Sound._enabled=true},disable:function(){Sound._enabled=false},play:function(b){if(!Sound._enabled){return}var a=Object.extend({track:"global",url:b,replace:false},arguments[1]||{});if(a.replace&&this.tracks[a.track]){$R(0,this.tracks[a.track].id).each(function(d){var c=$("sound_"+a.track+"_"+d);c.Stop&&c.Stop();c.remove()});this.tracks[a.track]=null}if(!this.tracks[a.track]){this.tracks[a.track]={id:0}}else{this.tracks[a.track].id++}a.id=this.tracks[a.track].id;$$("body")[0].insert(Prototype.Browser.IE?new Element("bgsound",{id:"sound_"+a.track+"_"+a.id,src:a.url,loop:1,autostart:true}):Sound.template.evaluate(a))}};if(Prototype.Browser.Gecko&&navigator.userAgent.indexOf("Win")>0){if(navigator.plugins&&$A(navigator.plugins).detect(function(a){return a.name.indexOf("QuickTime")!=-1})){Sound.template=new Template('<object id="sound_#{track}_#{id}" width="0" height="0" type="audio/mpeg" data="#{url}"/>')}else{Sound.play=function(){}}};

// ----

// script.aculo.us controls.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2008 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(b,c,a){b=$(b);this.element=b;this.update=$(c);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(a)}else{this.options=a||{}}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(d,e){if(!e.style.position||e.style.position=="absolute"){e.style.position="absolute";Position.clone(d,e,{setHeight:false,offsetTop:d.offsetHeight})}Effect.Appear(e,{duration:0.15})};this.options.onHide=this.options.onHide||function(d,e){new Effect.Fade(e,{duration:0.15})};if(typeof(this.options.tokens)=="string"){this.options.tokens=new Array(this.options.tokens)}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(a){if(this.active){switch(a.keyCode){case Event.KEY_TAB:case Event.KEY_RETURN:this.selectEntry();Event.stop(a);case Event.KEY_ESC:this.hide();this.active=false;Event.stop(a);return;case Event.KEY_LEFT:case Event.KEY_RIGHT:return;case Event.KEY_UP:this.markPrevious();this.render();Event.stop(a);return;case Event.KEY_DOWN:this.markNext();this.render();Event.stop(a);return}}else{if(a.keyCode==Event.KEY_TAB||a.keyCode==Event.KEY_RETURN||(Prototype.Browser.WebKit>0&&a.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(b){var a=Event.findElement(b,"LI");if(this.index!=a.autocompleteIndex){this.index=a.autocompleteIndex;this.render()}Event.stop(b)},onClick:function(b){var a=Event.findElement(b,"LI");this.index=a.autocompleteIndex;this.selectEntry();this.hide()},onBlur:function(a){setTimeout(this.hide.bind(this),250);this.hasFocus=false;this.active=false},render:function(){if(this.entryCount>0){for(var a=0;a<this.entryCount;a++){this.index==a?Element.addClassName(this.getEntry(a),"selected"):Element.removeClassName(this.getEntry(a),"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(a){return this.update.firstChild.childNodes[a]},getCurrentEntry:function(){return this.getEntry(this.index)},selectEntry:function(){this.active=false;this.updateElement(this.getCurrentEntry())},updateElement:function(f){if(this.options.updateElement){this.options.updateElement(f);return}var d="";if(this.options.select){var a=$(f).select("."+this.options.select)||[];if(a.length>0){d=Element.collectTextNodes(a[0],this.options.select)}}else{d=Element.collectTextNodesIgnoreClass(f,"informal")}var c=this.getTokenBounds();if(c[0]!=-1){var e=this.element.value.substr(0,c[0]);var b=this.element.value.substr(c[0]).match(/^\s+/);if(b){e+=b[0]}this.element.value=e+d+this.element.value.substr(c[1])}else{this.element.value=d}this.oldElementValue=this.element.value;this.element.focus();if(this.options.afterUpdateElement){this.options.afterUpdateElement(this.element,f)}},updateChoices:function(c){if(!this.changed&&this.hasFocus){this.update.innerHTML=c;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 a=0;a<this.entryCount;a++){var b=this.getEntry(a);b.autocompleteIndex=a;this.addObservers(b)}}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(a){Event.observe(a,"mouseover",this.onHover.bindAsEventListener(this));Event.observe(a,"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 a=this.getTokenBounds();return this.element.value.substring(a[0],a[1]).strip()},getTokenBounds:function(){if(null!=this.tokenBounds){return this.tokenBounds}var e=this.element.value;if(e.strip().empty()){return[-1,0]}var f=arguments.callee.getFirstDifferencePos(e,this.oldElementValue);var h=(f==this.oldElementValue.length?1:0);var d=-1,c=e.length;var g;for(var b=0,a=this.options.tokens.length;b<a;++b){g=e.lastIndexOf(this.options.tokens[b],f+h-1);if(g>d){d=g}g=e.indexOf(this.options.tokens[b],f+h);if(-1!=g&&g<c){c=g}}return(this.tokenBounds=[d+1,c])}});Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos=function(c,a){var d=Math.min(c.length,a.length);for(var b=0;b<d;++b){if(c[b]!=a[b]){return b}}return d};Ajax.Autocompleter=Class.create(Autocompleter.Base,{initialize:function(c,d,b,a){this.baseInitialize(c,d,a);this.options.asynchronous=true;this.options.onComplete=this.onComplete.bind(this);this.options.defaultParams=this.options.parameters||null;this.url=b},getUpdatedChoices:function(){this.startIndicator();var a=encodeURIComponent(this.options.paramName)+"="+encodeURIComponent(this.getToken());this.options.parameters=this.options.callback?this.options.callback(this.element,a):a;if(this.options.defaultParams){this.options.parameters+="&"+this.options.defaultParams}new Ajax.Request(this.url,this.options)},onComplete:function(a){this.updateChoices(a.responseText)}});Autocompleter.Local=Class.create(Autocompleter.Base,{initialize:function(b,d,c,a){this.baseInitialize(b,d,a);this.options.array=c},getUpdatedChoices:function(){this.updateChoices(this.options.selector(this))},setOptions:function(a){this.options=Object.extend({choices:10,partialSearch:true,partialChars:2,ignoreCase:true,fullSearch:false,selector:function(b){var d=[];var c=[];var h=b.getToken();var g=0;for(var e=0;e<b.options.array.length&&d.length<b.options.choices;e++){var f=b.options.array[e];var j=b.options.ignoreCase?f.toLowerCase().indexOf(h.toLowerCase()):f.indexOf(h);while(j!=-1){if(j==0&&f.length!=h.length){d.push("<li><strong>"+f.substr(0,h.length)+"</strong>"+f.substr(h.length)+"</li>");break}else{if(h.length>=b.options.partialChars&&b.options.partialSearch&&j!=-1){if(b.options.fullSearch||/\s/.test(f.substr(j-1,1))){c.push("<li>"+f.substr(0,j)+"<strong>"+f.substr(j,h.length)+"</strong>"+f.substr(j+h.length)+"</li>");break}}}j=b.options.ignoreCase?f.toLowerCase().indexOf(h.toLowerCase(),j+1):f.indexOf(h,j+1)}}if(c.length){d=d.concat(c.slice(0,b.options.choices-d.length))}return"<ul>"+d.join("")+"</ul>"}},a||{})}});Field.scrollFreeActivate=function(a){setTimeout(function(){Field.activate(a)},1)};Ajax.InPlaceEditor=Class.create({initialize:function(c,b,a){this.url=b;this.element=c=$(c);this.prepareOptions();this._controls={};arguments.callee.dealWithDeprecatedOptions(a);Object.extend(this.options,a||{});if(!this.options.formId&&this.element.id){this.options.formId=this.element.id+"-inplaceeditor";if($(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(a){if(!this._editing||a.ctrlKey||a.altKey||a.shiftKey){return}if(Event.KEY_ESC==a.keyCode){this.handleFormCancellation(a)}else{if(Event.KEY_RETURN==a.keyCode){this.handleFormSubmission(a)}}},createControl:function(g,c,b){var e=this.options[g+"Control"];var f=this.options[g+"Text"];if("button"==e){var a=document.createElement("input");a.type="submit";a.value=f;a.className="editor_"+g+"_button";if("cancel"==g){a.onclick=this._boundCancelHandler}this._form.appendChild(a);this._controls[g]=a}else{if("link"==e){var d=document.createElement("a");d.href="#";d.appendChild(document.createTextNode(f));d.onclick="cancel"==g?this._boundCancelHandler:this._boundSubmitHandler;d.className="editor_"+g+"_link";if(b){d.className+=" "+b}this._form.appendChild(d);this._controls[g]=d}}},createEditField:function(){var c=(this.options.loadTextURL?this.options.loadingText:this.getText());var b;if(1>=this.options.rows&&!/\r|\n/.test(this.getText())){b=document.createElement("input");b.type="text";var a=this.options.size||this.options.cols||0;if(0<a){b.size=a}}else{b=document.createElement("textarea");b.rows=(1>=this.options.rows?this.options.autoRows:this.options.rows);b.cols=this.options.cols||40}b.name=this.options.paramName;b.value=c;b.className="editor_field";if(this.options.submitOnBlur){b.onblur=this._boundSubmitHandler}this._controls.editor=b;if(this.options.loadTextURL){this.loadExternalText()}this._form.appendChild(this._controls.editor)},createForm:function(){var b=this;function a(d,e){var c=b.options["text"+d+"Controls"];if(!c||e===false){return}b._form.appendChild(document.createTextNode(c))}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)}a("Before",this.options.okControl||this.options.cancelControl);this.createControl("ok",this._boundSubmitHandler);a("Between",this.options.okControl&&this.options.cancelControl);this.createControl("cancel",this._boundCancelHandler,"editor_cancel");a("After",this.options.okControl||this.options.cancelControl)},destroy:function(){if(this._oldInnerHTML){this.element.innerHTML=this._oldInnerHTML}this.leaveEditMode();this.unregisterListeners()},enterEditMode:function(a){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(a){Event.stop(a)}},enterHover:function(a){if(this.options.hoverClassName){this.element.addClassName(this.options.hoverClassName)}if(this._saving){return}this.triggerCallback("onEnterHover")},getText:function(){return this.element.innerHTML.unescapeHTML()},handleAJAXFailure:function(a){this.triggerCallback("onFailure",a);if(this._oldInnerHTML){this.element.innerHTML=this._oldInnerHTML;this._oldInnerHTML=null}},handleFormCancellation:function(a){this.wrapUp();if(a){Event.stop(a)}},handleFormSubmission:function(d){var b=this._form;var c=$F(this._controls.editor);this.prepareSubmission();var f=this.options.callback(b,c)||"";if(Object.isString(f)){f=f.toQueryParams()}f.editorId=this.element.id;if(this.options.htmlResponse){var a=Object.extend({evalScripts:true},this.options.ajaxOptions);Object.extend(a,{parameters:f,onComplete:this._boundWrapperHandler,onFailure:this._boundFailureHandler});new Ajax.Updater({success:this.element},this.url,a)}else{var a=Object.extend({method:"get"},this.options.ajaxOptions);Object.extend(a,{parameters:f,onComplete:this._boundWrapperHandler,onFailure:this._boundFailureHandler});new Ajax.Request(this.url,a)}if(d){Event.stop(d)}},leaveEditMode:function(){this.element.removeClassName(this.options.savingClassName);this.removeForm();this.leaveHover();this.element.style.backgroundColor=this._originalBackground;this.element.show();if(this.options.externalControl){this.options.externalControl.show()}this._saving=false;this._editing=false;this._oldInnerHTML=null;this.triggerCallback("onLeaveEditMode")},leaveHover:function(a){if(this.options.hoverClassName){this.element.removeClassName(this.options.hoverClassName)}if(this._saving){return}this.triggerCallback("onLeaveHover")},loadExternalText:function(){this._form.addClassName(this.options.loadingClassName);this._controls.editor.disabled=true;var a=Object.extend({method:"get"},this.options.ajaxOptions);Object.extend(a,{parameters:"editorId="+encodeURIComponent(this.element.id),onComplete:Prototype.emptyFunction,onSuccess:function(c){this._form.removeClassName(this.options.loadingClassName);var b=c.responseText;if(this.options.stripLoadedTextTags){b=b.stripTags()}this._controls.editor.value=b;this._controls.editor.disabled=false;this.postProcessEditField()}.bind(this),onFailure:this._boundFailureHandler});new Ajax.Request(this.options.loadTextURL,a)},postProcessEditField:function(){var a=this.options.fieldPostCreation;if(a){$(this._controls.editor)["focus"==a?"focus":"activate"]()}},prepareOptions:function(){this.options=Object.clone(Ajax.InPlaceEditor.DefaultOptions);Object.extend(this.options,Ajax.InPlaceEditor.DefaultCallbacks);[this._extraDefaultOptions].flatten().compact().each(function(a){Object.extend(this.options,a)}.bind(this))},prepareSubmission:function(){this._saving=true;this.removeForm();this.leaveHover();this.showSaving()},registerListeners:function(){this._listeners={};var a;$H(Ajax.InPlaceEditor.Listeners).each(function(b){a=this[b.value].bind(this);this._listeners[b.key]=a;if(!this.options.externalControlOnly){this.element.observe(b.key,a)}if(this.options.externalControl){this.options.externalControl.observe(b.key,a)}}.bind(this))},removeForm:function(){if(!this._form){return}this._form.remove();this._form=null;this._controls={}},showSaving:function(){this._oldInnerHTML=this.element.innerHTML;this.element.innerHTML=this.options.savingText;this.element.addClassName(this.options.savingClassName);this.element.style.backgroundColor=this._originalBackground;this.element.show()},triggerCallback:function(b,a){if("function"==typeof this.options[b]){this.options[b](this,a)}},unregisterListeners:function(){$H(this._listeners).each(function(a){if(!this.options.externalControlOnly){this.element.stopObserving(a.key,a.value)}if(this.options.externalControl){this.options.externalControl.stopObserving(a.key,a.value)}}.bind(this))},wrapUp:function(a){this.leaveEditMode();this._boundComplete(a,this.element)}});Object.extend(Ajax.InPlaceEditor.prototype,{dispose:Ajax.InPlaceEditor.prototype.destroy});Ajax.InPlaceCollectionEditor=Class.create(Ajax.InPlaceEditor,{initialize:function($super,c,b,a){this._extraDefaultOptions=Ajax.InPlaceCollectionEditor.DefaultOptions;$super(c,b,a)},createEditField:function(){var a=document.createElement("select");a.name=this.options.paramName;a.size=1;this._controls.editor=a;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)){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(b){this._controls.editor.disabled=true;var a=this._controls.editor.firstChild;if(!a){a=document.createElement("option");a.value="";this._controls.editor.appendChild(a);a.selected=true}a.update((b||"").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 a=Object.extend({method:"get"},this.options.ajaxOptions);Object.extend(a,{parameters:"editorId="+encodeURIComponent(this.element.id),onComplete:Prototype.emptyFunction,onSuccess:function(b){this._text=b.responseText.strip();this.buildOptionList()}.bind(this),onFailure:this.onFailure});new Ajax.Request(this.options.loadTextURL,a)},buildOptionList:function(){this._form.removeClassName(this.options.loadingClassName);this._collection=this._collection.map(function(d){return 2===d.length?d:[d,d].flatten()});var b=("value" in this.options)?this.options.value:this._text;var a=this._collection.any(function(d){return d[0]==b}.bind(this));this._controls.editor.update("");var c;this._collection.each(function(e,d){c=document.createElement("option");c.value=e[0];c.selected=a?e[0]==b:0==d;c.appendChild(document.createTextNode(e[1]));this._controls.editor.appendChild(c)}.bind(this));this._controls.editor.disabled=false;Field.scrollFreeActivate(this._controls.editor)}});Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions=function(a){if(!a){return}function b(c,d){if(c in a||d===undefined){return}a[c]=d}b("cancelControl",(a.cancelLink?"link":(a.cancelButton?"button":a.cancelLink==a.cancelButton==false?false:undefined)));b("okControl",(a.okLink?"link":(a.okButton?"button":a.okLink==a.okButton==false?false:undefined)));b("highlightColor",a.highlightcolor);b("highlightEndColor",a.highlightendcolor)};Object.extend(Ajax.InPlaceEditor,{DefaultOptions:{ajaxOptions:{},autoRows:3,cancelControl:"link",cancelText:"cancel",clickToEditText:"Click to edit",externalControl:null,externalControlOnly:false,fieldPostCreation:"activate",formClassName:"inplaceeditor-form",formId:null,highlightColor:"#ffff99",highlightEndColor:"#ffffff",hoverClassName:"",htmlResponse:true,loadingClassName:"inplaceeditor-loading",loadingText:"Loading...",okControl:"button",okText:"ok",paramName:"value",rows:1,savingClassName:"inplaceeditor-saving",savingText:"Saving...",size:0,stripLoadedTextTags:false,submitOnBlur:false,textAfterControls:"",textBeforeControls:"",textBetweenControls:""},DefaultCallbacks:{callback:function(a){return Form.serialize(a)},onComplete:function(b,a){new Effect.Highlight(a,{startcolor:this.options.highlightColor,keepBackgroundImage:true})},onEnterEditMode:null,onEnterHover:function(a){a.element.style.backgroundColor=a.options.highlightColor;if(a._effect){a._effect.cancel()}},onFailure:function(b,a){alert("Error communication with the server: "+b.responseText.stripTags())},onFormCustomization:null,onLeaveEditMode:null,onLeaveHover:function(a){a._effect=new Effect.Highlight(a.element,{startcolor:a.options.highlightColor,endcolor:a.options.highlightEndColor,restorecolor:a._originalBackground,keepBackgroundImage:true})}},Listeners:{click:"enterEditMode",keydown:"checkForEscapeOrReturn",mouseover:"enterHover",mouseout:"leaveHover"}});Ajax.InPlaceCollectionEditor.DefaultOptions={loadingCollectionText:"Loading options..."};Form.Element.DelayedObserver=Class.create({initialize:function(b,a,c){this.delay=a||0.5;this.element=$(b);this.callback=c;this.timer=null;this.lastValue=$F(this.element);Event.observe(this.element,"keyup",this.delayedListener.bindAsEventListener(this))},delayedListener:function(a){if(this.lastValue==$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))}});

// ----

var Tooltip=Class.create();Tooltip.prototype={initialize:function(c,b){var a=Object.extend({default_css:false,margin:"0px",padding:"5px",backgroundColor:"#d6d6fc",min_distance_x:0,min_distance_y:0,delta_x:10,delta_y:0,zindex:1000,cursor:"default"},arguments[2]||{});this.element=$(c);this.options=a;this.element.setStyle({cursor:a.cursor});if($(b)){this.tool_tip=$(b)}else{this.tool_tip=$(document.createElement("div"));document.body.appendChild(this.tool_tip);this.tool_tip.addClassName("tooltip");this.tool_tip.id=((c.id)?c.id:($$("div.tooltip").length))+"_tooltip";this.tool_tip.update(b)}this.tool_tip.hide();this.eventMouseOver=this.showTooltip.bindAsEventListener(this);this.eventMouseOut=this.hideTooltip.bindAsEventListener(this);this.eventMouseMove=this.moveTooltip.bindAsEventListener(this);this.registerEvents()},destroy:function(){Event.stopObserving(this.element,"mouseover",this.eventMouseOver);Event.stopObserving(this.element,"mouseout",this.eventMouseOut)},registerEvents:function(){Event.observe(this.element,"mouseover",this.eventMouseOver);Event.observe(this.element,"mouseout",this.eventMouseOut)},moveTooltip:function(d){Event.stop(d);var c=Position.cumulativeOffset(Event.element(d));var e=Element.getDimensions(Event.element(d));var b=c[0]+e.width;var a=c[1]+e.height;b=b+this.options.min_distance_x;a=a+this.options.min_distance_y;this.setStyles(b,a)},showTooltip:function(a){Event.stop(a);this.moveTooltip(a);new Element.show(this.tool_tip)},setStyles:function(a,b){Element.setStyle(this.tool_tip,{position:"absolute",top:b+this.options.delta_y+"px",left:a+this.options.delta_x+"px",zIndex:this.options.zindex});if(this.options.default_css){Element.setStyle(this.tool_tip,{margin:this.options.margin,padding:this.options.padding,backgroundColor:this.options.backgroundColor,zIndex:this.options.zindex})}},hideTooltip:function(a){new Element.hide(this.tool_tip)},getWindowHeight:function(){var a;if(navigator.appVersion.indexOf("MSIE")>0){a=document.body.clientHeight}else{a=window.innerHeight}return a},getWindowWidth:function(){var a;if(navigator.appVersion.indexOf("MSIE")>0){a=document.body.clientWidth}else{a=window.innerWidth}return a}};

// ----

var StarTip;var StarRater=Class.create({initialize:function(b,m,j,e){var h=$("comment_form");if(h){h.observe("submit",function(i){Event.stop(i);comment_err=false;if($F("rating_hidden")==""){$("comment_err_rating").style.display="block";comment_err=true}else{$("comment_err_rating").style.display="none"}if($F("RatingComment")==""){$("comment_err_comment").style.display="block";comment_err=true}else{$("comment_err_comment").style.display="none"}if($F("RatingTags")==""){$("comment_err_tags").style.display="block";comment_err=true}else{$("comment_err_tags").style.display="none"}if($F("RatingLang")==""){$("comment_err_lang").style.display="block";comment_err=true}else{$("comment_err_lang").style.display="none"}if(!comment_err){$("comment_form").submit()}})}var c,k,g;var a=Math.floor(100/5*j);var f='<ul class="star-rating" style="width:100px">';var l=Builder.node("ul",{className:"star-rating",style:"width:100px"});for(var d=0;d<=5;d++){if(d==0){g=Builder.node("li",{className:"current-rating",id:"rater"+m,style:"width:0%"},j+"/5")}else{c=Math.floor(100/5*d);k=(5-d)+2;e=false;if(e){disClass="disable";if(d>j){disClass="disableWhite"}g=Builder.node("li",{className:"star"},Builder.node("a",{className:disClass,href:"#"+d,style:"width:"+c+"%;z-index:"+k},d))}else{g=Builder.node("li",{className:"star"},Builder.node("a",{href:"#"+d,style:"width:"+c+"%;z-index:"+k},d))}}l.appendChild(g)}$(b).appendChild(l);if($("rating_hidden")){var n=$("rating_hidden").readAttribute("value")}$$("#"+b+" .star-rating li.star a").each(function(i){if(n>0){$$("#"+b+" .star-rating li.star a").each(function(o){if(parseInt(o.innerHTML)==n){o.className="fix"}else{o.className=""}})}$(i).observe("click",function(o){var p=Event.element(o).href.split("#")[1];$("rating_hidden").setAttribute("value",p);$$("#"+b+" .star-rating li.star a").each(function(q){if(parseInt(q.innerHTML)==p){q.className="fix"}else{q.className=""}});Event.stop(o)})})}});

// ----

var BoxSlide=Class.create({crpy:((navigator.appVersion.indexOf("6.")!=-1 || navigator.appVersion.indexOf("7.")!=-1) && Prototype.Browser.IE),initialize:function(modelbox,options){var default_options={activatorStyle:{'background':'black','position':'relative','cursor':'pointer','top':'10px','left':(this.crpy?'-2':'10px'),'width':'100px','height':'100px','zIndex':'20'},animateTime:1.0,animateWait:0.5};this.options=Object.extend(default_options,options||{});this.modelbox=$(modelbox);this.clickInfo=$(this.modelbox.select('div.model-box-images div.clickinfo'));this.imageLink=$(this.modelbox.select('div.model-box-images a').first());this.imageHref=this.imageLink.getAttribute('href');this.imageFiles=this.imageLink.getAttribute('rel').split(" ");this._currIndex=0;this._currImage=$(this.imageLink.select('img').first());this.activator=new Element('div').setStyle(this.options.activatorStyle).setOpacity(0.1);Event.observe(document,'mousemove',this.getMouseXY.bindAsEventListener(this));if(this.imageFiles[1]!==''){this.activator.observe('mouseover',this.startAnimation.bindAsEventListener(this));this.activator.observe('mouseout',this.stopAnimation.bindAsEventListener(this))}this.activator.observe('mouseover',this.showClickInfo.bindAsEventListener(this));this.activator.observe('mouseout',this.hideClickInfo.bindAsEventListener(this));this.activator.observe('click',this.redirectToProfile.bindAsEventListener(this));this.imageLink.insert({'before':this.activator})},redirectToProfile:function(){this.stopAnimation();this.activator.setOpacity(0.3);window.location.href=this.imageHref},startAnimation:function(){this.imageTimeout=window.setTimeout(function(){this._advanceImage();this._insertImage();this._observeLoad()}.bind(this),(this.options.animateWait*1000))},showClickInfo:function(){this.clickInfo.each(function(element){Element.show(element)})},hideClickInfo:function(){this.clickInfo.each(function(element){Element.hide(element)})},_advanceImage:function(){this._currIndex++;if(this._currIndex==(this.imageFiles.length-1)){this._currIndex=0}},_observeLoad:function(){if(!this._nextImage.complete){this._nextImage.observe('load',this._afterLoad.bindAsEventListener(this))}else{this._makeTransition()}},_afterLoad:function(){var activatorPos=$(this.activator).cumulativeOffset(),activatorTopX=activatorPos.first(),activatorTopY=activatorPos.last(),activatorBottomX=activatorTopX+100,activatorBottomY=activatorTopY+100;if(this.mouseX>activatorTopX&&this.mouseX<activatorBottomX){if(this.mouseY>activatorTopY&&this.mouseY<activatorBottomY){this._makeTransition()}}},_makeTransition:function(){this.imageEffect=new Effect.Parallel([new Effect.Fade(this._currImage),new Effect.Appear(this._nextImage)],{duration:this.options.animateTime,afterFinish:function(){this._currImage.remove();this.startAnimation()}.bind(this)})},_insertImage:function(){this._currImage=$(this.imageLink.select('img').first());this._nextImage=this._currImage.cloneNode(true);this._nextImage.setAttribute('src',this.imageFiles[this._currIndex]);this._currImage.insert({before:this._nextImage})},stopAnimation:function(){window.clearTimeout(this.imageTimeout);if(this.imageEffect){this.imageEffect.options.afterFinish=Prototype.emptyFunction}},getMouseXY:function(e){this.mouseY=Event.pointerY(e);this.mouseX=Event.pointerX(e)}});var box_slides=[];document.observe('dom:loaded',function(){$$('#contentarray div.model-box-slideable').each(function(element){var box_slide=new BoxSlide(element);box_slides.push(box_slide)});$$('#thread div.thread-author').each(function(element){var box_slide=new BoxSlide(element,{'activatorStyle':{'background':'black','position':'absolute','cursor':'pointer','width':'100px','height':'100px','marginLeft':(Prototype.Browser.IE?'-50px':'0px'),'zIndex':'8888'}});box_slides.push(box_slide)})});

// ----

/*
 * Misc Javascript Functions
 * @author Kjell Bublitz
 *
*/	
	Element.addMethods({
		wrap: function(element, tagName) {
			element = $(element);
			var wrapper = document.createElement(tagName);
			element.parentNode.replaceChild(wrapper, element);
			wrapper.appendChild(element);
			return Element.extend(wrapper);
		},
		unwrap: function(element) {
			element = $(element);
			var content = element.down();		
			element.parentNode.replaceChild(content, element);
			return Element.extend(content);
		},
		highlight: function(element, endColor) {
			if(!endColor){ endColor = '#FFFFFF'; } 
			new Effect.Highlight(element, {startcolor: '#F550AD', endcolor: endColor, restorecolor: endColor});  
			return Element.extend(element);
		}
	});	
	
	// Thumb Vote
  var thumbVoteLang = { // default, is overridden by view
      'SELF_VOTE': "You can't vote for yourself.",
      'ALREADY_VOTED': "You already voted for this user.",
      'SUCCESS': "Your vote has been counted. Thanks!",
      'FAILED': "There was a problem. Sorry.",
      'LOGIN': "Please login first. Thank you."
  };
  document.observe("dom:loaded", function(){
     var getThmbDir = function(cls){ return (cls.split('-up').length > 1) ? 'up' : 'dn'; };
     var alreadyVoted = function(img){ return (img.up().hasClassName('thmvote-done')); };
     $$('#content_data .thumbvote span').invoke('observe', 'mouseover', function(evt){
         var img = evt.findElement('span'); if(!alreadyVoted(img)) $(img).addClassName('thmvote-' + getThmbDir(img.className) + '-h');
     }).invoke('observe', 'mouseout', function(evt){
         var img = evt.findElement('span'); if(!alreadyVoted(img)) $(img).removeClassName('thmvote-' + getThmbDir(img.className) + '-h');
     }).invoke('observe', 'click', function(evt){
         var img = evt.findElement('span'); if(!alreadyVoted(img)) {
            if(userLoggedIn) $(img).addClassName('thmvote-' + getThmbDir(img.className) + '-p');
            img.up().addClassName('thmvote-done');
            new Ajax.Request(baseUrl+'users/thumbvote/'+getThmbDir(img.className)+'/'+img.up().id.split('_')[1], {method:'GET', onSuccess: function(xhr){
               
               var messagetip = img.up().down('div.thmvote-status');
               messagetip.update(thumbVoteLang[xhr.responseText.strip()]);                                
               new Effect.Parallel([
                 new Effect.Morph(messagetip, {style:'margin-top: -2.5em'}),
                 new Effect.Appear(messagetip)
               ], { duration:0.4, afterFinish: function(){
                   window.setTimeout(function(){
                    new Effect.Parallel([
                      new Effect.Morph(messagetip, {style:'margin-top: 0em'}),
                      new Effect.Fade(messagetip)
                    ], { duration:0.4 });
                   }, 1500);
               }});
               
            }});
         }
     });
  });	
	
	// remember-user checkbox
	function remember(elem, source) { 
		var userid = $(elem).getAttribute('id').split('_');
		var shortlistnum = parseInt($('shortlistbutton').innerHTML);
		
        if(source != 'p') {
            var shortlist = '<img src="/img/checkbox.gif" style="float:right;margin-top:2px;" alt="Merken...">'; 
            var shortlistAdded = '<img src="/img/checkedbox.gif" style="float:right;margin-top:2px;" alt="Merken...">';
        } else {
            var shortlist = '<img src="/img/checkbox.gif" style="vertical-align:middle;" alt="Merken...">'; 
            var shortlistAdded = '<img src="/img/checkedbox.gif" style="vertical-align:middle;" alt="Merken...">';               
        }
        
	    if($(elem).className == 'shortlist-off') {
			shortlistnum++;
			$('shortlistbutton').update(shortlistnum);
			if (shortlistnum == 1) {
				$('shortlistcontainer').toggle();
			}
			new Ajax.Request(baseUrl+'shortlists/add/'+userid[1], {onSuccess: function(){ $('spinner_'+userid[1]).hide(); $(elem).className = 'shortlist-on'; $(elem).update(shortlistAdded); }, onLoading: function() { $('spinner_'+userid[1]).show() } });
	    } else {
			shortlistnum--;
			$('shortlistbutton').update(shortlistnum);
		    if (shortlistnum == 0) {
				$('shortlistcontainer').toggle();
			}
        	new Ajax.Request(baseUrl+'shortlists/remove/'+userid[1], {onSuccess: function(){ $('spinner_'+userid[1]).hide(); $(elem).className = 'shortlist-off'; $(elem).update(shortlist); }, onLoading: function() { $('spinner_'+userid[1]).show() } });
	    }
	}
	
	// remember-user button on user profiles
	function remember_profile(elem, user_id)
	{
		var shortlistnum = parseInt($('shortlistbutton').innerHTML);
        
	    if($(elem).className == 'shortlist-off')
		{
			shortlistnum++;
			$('shortlistbutton').update(shortlistnum);
			if (shortlistnum == 1) {
				$('shortlistcontainer').toggle();
			}
			//new Ajax.Request(baseUrl+'users/shortlist/'+user_id, {onSuccess: function()
			new Ajax.Request(baseUrl+'shortlists/add/'+user_id, {onSuccess: function()
			{
				$('spinner_'+user_id).hide();
				$('unmemorized').toggle();
				$('memorized').toggle();
			}, onLoading: function() { $('spinner_'+userid[1]).show() }
			});
	    }
		else
		{
			shortlistnum--;
			$('shortlistbutton').update(shortlistnum);
		    if (shortlistnum == 0) {
				$('shortlistcontainer').toggle();
			}
        	//new Ajax.Request(baseUrl+'users/deshortlist/'+user_id, {onSuccess: function()
        	new Ajax.Request(baseUrl+'shortlists/remove/'+user_id, {onSuccess: function()
			{
				$('spinner_'+user_id).hide();
				$('unmemorized').toggle();
				$('memorized').toggle();
			}, onLoading: function() { $('spinner_'+userid[1]).show() }
			});
	    }
	}
	
	// Add friend-button on profile
	function friends_add(caller, to_id) {
		new Ajax.Request('/friends/request/'+to_id, {
			onLoading: function(){  },
			onSuccess: function(xhr, json) {
				if(json.success) {
					pushFlashMessage('friends_flash_msg', 'success', xhr.responseText);
					Effect.Fade(caller, { duration: 1.0 });
				} else {
					pushFlashMessage('friends_flash_msg', 'error', xhr.responseText);
				}
			}
		});
	}
	
	function pushFlashMessage(id, msgtype, msgtext)
	{
		var template = '<div id="#{id}" style="display:none;"><div class="box" style="margin-bottom:30px;"><div class="box_corner_top_left"><div class="box_corner_top_right">';
		template += '<div class="box_corner_bottom_left"><div class="box_corner_bottom_right"><div class="message-#{msgtype}" style="width:591px;">';
		template += '<p><img src="/design_v2/images/icons/message_#{msgtype}.gif" alt="#{msgtype}" /></p>';
		template += '<p style="float: left; margin-left:5px; display:inline; width:511px;">#{msgtext}</p>';
		template += '<p style="float: left; margin:0 5px 0 30px; display:inline;"><strong><a href="#close" onclick="new Effect.Fade($(this).up(8),{duration:0.3});return false">OK</a></strong></p>';
		template += '</div></div></div></div></div></div><br style="clear:both"/></div>';
		var tpl = new Template(template);
		var msghtml = tpl.evaluate({id: id ,msgtype: msgtype , msgtext: msgtext});
		$('content_profil').insert({'before': msghtml });
		$(id).appear({ duration: 0.5 });
	}
	
	// report a fake profile
	function report_fake(caller, fake_user_id)
	{
		var reason = prompt(lang_fake_reason,"");
		
		if (reason != "" && reason != null)
		{
			new Ajax.Request('/users/report_fake/'+fake_user_id, {
				onLoading: function(){  },
				parameters: $H({'data[Fake][reason]':reason}).toQueryString(),
				onSuccess: function(xhr, json) {
					if(json.success) {
						pushFlashMessage('report_fake_flash_msg', 'success', xhr.responseText);
						Effect.Fade(caller, { duration: 1.0 });
					} else {
						pushFlashMessage('friends_flash_msg', 'error', xhr.responseText);
					}
				}
			});
		}
	}
	
	// profile tab switch
	function profileswitch(caller, type) {
		var content = $('profil_'+type);
		$$('a.profile_tab.profile').without(caller).invoke('removeClassName', 'eckehover_profil');
		$$('a.profile_tab').without(caller).invoke('removeClassName', 'eckehover_profil');
		$$('div.profil_packet').without(content).invoke('hide');
		$(caller).addClassName('eckehover_profil');
		$(content).show();
		caller.blur();
	}
	
	function switchTab(caller, tabId, tabClass)
	{
	    var content = $(tabId);
		//$$('a.profile_tab.profile').without(caller).invoke('removeClassName', 'eckehover_profil');
		//$$('a.profile_tab').without(caller).invoke('removeClassName', 'eckehover_profil');
		
		$$('div.'+tabClass).without(content).invoke('hide');

		$(caller).up(0).addClassName('active');

		tabs = $(caller).up().up().childElements();
		callerTab = $(caller).up();
		
		tabs.without(callerTab).each(function(elem){
		    //console.log(elem);
		    elem.removeClassName('active');
		});
		
		//console.log('up()');
		//console.log(test);
		
		content.show();
		caller.blur();
	}
	
	// general tab switch
	function tabwitch(caller, type) {
		var content = $(type);
		$$('a.profile_tab.attr').without(caller).invoke('removeClassName', 'eckehover_profil');
		$$('div.inhalt.attr').without(content).invoke('hide');
		$(caller).addClassName('eckehover_profil');
		$(content).show();
	}
   
	// general validation function
	function checkEmpty(field) {
		if($F(field).length==0){
			new Effect.Highlight(field, {startcolor: '#F550AD', endcolor: '#FFFFFF', restorecolor: '#FFFFFF'});
			return true;
		}
		return false;
	}

	// general validation function
	function checkEmail(field) {
		if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test($F(field))){
			return false
		} else {
			new Effect.Highlight(field, {startcolor: '#F550AD', endcolor: '#FFFFFF', restorecolor: '#FFFFFF'});  
			return true;
		}
	}
	
	// for hidden maps to reinit
	function centerMap(lat, lon) {
		map.checkResize();map.setCenter(new GLatLng(lat, lon),startZoom)		
	}
	
	// generic tab function
	function swapTabs(self, toShow, contentClass, linkClass, tabHiClass) {
		$$('div.'+contentClass).without($(toShow)).invoke('hide');
		$(toShow).show();
		$$('a.'+linkClass).without(self).invoke('removeClassName', tabHiClass);
		$(self).addClassName(tabHiClass);		
	}
	
	// messages/index action
	function msgs_markread(dir, form, text) {
		new Ajax.Request('/messages/marked_set_read/'+dir, { 
			parameters:$(form).serialize(),
			onSuccess:function(xhr,json){
				if(json.success){
					var ids = xhr.responseText.evalJSON(); var link;
					ids.each(function(id){
						if($('subj_'+id).down().nodeName == 'B'){ $($('subj_'+id).down()).unwrap(); }
						$('read_'+id).update(text); 
					}); 
				}
			}
		});		
	}
	
	// messages/index action
	function msgs_markunread(dir, form, text) {
		new Ajax.Request('/messages/marked_set_unread/'+dir, { 
			parameters:$(form).serialize(),
			onSuccess:function(xhr,json){ 
				if(json.success){
					var ids = xhr.responseText.evalJSON();
					ids.each(function(id){ 
						if($('subj_'+id).down().nodeName == 'A'){ $($('subj_'+id).down()).wrap('b'); }
						$('read_'+id).update(text); 
					}); 
				}
			}
		});		
	}

	// messages/index action
	function msgs_deletemarked(dir, form) {
		new Ajax.Request('/messages/marked_delete/'+dir, {
			parameters:$(form).serialize(),
			onSuccess:function(xhr,json){
				if(json.success){
					var ids=xhr.responseText.evalJSON(); 
					ids.each(function(id){ 
						$('row_'+id).remove(); 
					}); 
				}
			}
		});		
	}

	// messages/index action
	function msgs_markall(self, clsname) {
		$$('input.'+clsname).each(function(elem){
			elem.checked=self.checked
		})
	}
	
	// shops (wrapper to prevent auto-opening of thumbs)
	function openProd(element_id) {
		return hs.expand($(element_id))
	}
	
	// Returns the version of Internet Explorer or a -1
	// (indicating the use of another browser).
	function getInternetExplorerVersion()
	{
	  var rv = -1; // Return value assumes failure.
	  if (Prototype.Browser.IE)
	  {
	    var ua = navigator.userAgent;
	    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
	    if (re.exec(ua) != null)
	      rv = parseFloat( RegExp.$1 );
	  }
	  return rv;
	}
	
	
	
	/**
	 * Activity Stream Class. 
	 */
	var Stream = Class.create({
		inserted: [],
		// toUpdate = '<ul> id', interval = 'seconds', limit = 'results'
		initialize: function(toUpdate, interval, limit, type, template) {
			this.limit = limit ? limit : 10
			this.toUpdate = $(toUpdate);
			if(type == null) {
				this.type = 'pinboard';
			} else {
				this.type = type;
			}
			this.interval = interval;
			this.file = '/stream.php';
			if (template == null) {
                this.template = new Template('<li id="#{timestamp}" class="action #{className}" style="display:none">#{message}</li>');
			} else {
                this.template = new Template(template);
			}
			this.getUpdate('init');
			
			new PeriodicalExecuter(this.getUpdate.bind(this), this.interval);
		},
		
		getUpdate: function(get) {
			var params = '', options = {
				method: "GET",
				asynchronous: true,
				requestHeaders: {'Connection':'close'},
				parameters: "intervalPeriod="+this.interval+"&type="+this.type,
				onComplete: function(xhr){
					var jsonData = xhr.responseJSON;
					if (jsonData.status == 'success') {
						jsonData.data.each(this.insertRow.bind(this));
						if($('loading_stream')) $('loading_stream').hide();
					}					
				}.bind(this)
			};
			
			if (get == 'init') {
				params = '?g=true&c='+this.limit
			} else {
				if (this.toUpdate.childElements().length > this.limit) {
					this.animateLast();
				}
				if (this.inserted.length) { // use last displayed
					params = '?g='+this.inserted.last()+'&c='+this.limit
				} else { // use local time
					var ts = new String(new Date().getTime()), tsnoms=(ts.substr(0, ts.length-3));
					params = '?g='+tsnoms+'&c='+this.limit
				}
			}
			var oRequest = new Ajax.Request(this.file+params, options);
		},
				
		insertRow: function(row) {
			if (!this.inserted.include(row.timestamp)) {
				this.inserted.push(row.timestamp);			
				this.toUpdate.insert({'top':this.template.evaluate(row)});
				this.animateFirst();
			}
			if (this.toUpdate.childElements().length > this.limit) {
				this.animateLast();
			}
		},
		
		animateFirst: function() {
			var row = this.toUpdate.childElements().first();
			new Effect.Parallel([
				new Effect.BlindDown(row), 
				new Effect.Appear(row)
			], {
				duration:0.6, queue:'end'
			});
		},
		
		animateLast: function() {
			var row = this.toUpdate.childElements().last();
			new Effect.Parallel([
				new Effect.BlindUp(row),
				new Effect.Fade(row)
			], {
				duration:0.6, queue:'end', afterFinish: function(){
					if ($(row)) row.remove(); 
					this.inserted = this.inserted.without(row.id);
				}.bind(this)
			});			
		}
	});
	
	
	/**
	 * Masschat Users Online List Class.
	 */
	var MasschatOnlineList = Class.create({
		//inserted: [],
		// toUpdate = '<ul> id', interval = 'seconds', limit = 'results'
		
		initialize: function(toUpdate, interval, template) {
			this.toUpdate = $(toUpdate);
			this.interval = interval;
			this.file = '/masschat.php';
			if (template == null) {
                this.template = new Template('<li id="uo#{user_id}" style="display:none;"><img src="#{user_image}"/><span>#{usertype} #{username}</span></li>');
			} else {
                this.template = new Template(template);
			}
			this.inserted = new Array();
			
			this.getUpdate();
			new PeriodicalExecuter(this.getUpdate.bind(this), this.interval);
		},

		getUpdate: function() {
			var params = '', options = {
				method: "GET",
				asynchronous: true,
				requestHeaders: {'Connection':'close'},
				parameters: "mode=onlinelist",
				onComplete: function(xhr){
					var jsonData = xhr.responseJSON;
					if (jsonData.status == 'success') {
						this.syncronize(jsonData.data);
					}
				}.bind(this)
			};
			var oRequest = new Ajax.Request(this.file, options);
		},
		
		syncronize: function(data)
		{
		    online_ids = new Array();
			OBJ = this;
			
			// Insert new online user into the list
			data.each(function(userdata){
			    online_ids.push(userdata.user_id);
			    if (!OBJ.inserted.include(userdata.user_id)) {
			        OBJ.insertUser(userdata);
			    }
			});
			
			// Remove users from the online list who aren't online anymore
			this.inserted.each( function(id){
                if (!online_ids.include(id)) {
					uo = $('uo'+id);
                    new Effect.Fade(uo,
					{
						duration: 1.0,
						afterFinish: function(){
                            if (uo) uo.remove();
						}.bind(this)
					});
                }
			});
			
			OBJ.inserted = online_ids;
		},
		
		insertUser: function(userdata)
		{
            this.toUpdate.insert({'bottom':this.template.evaluate(userdata)});
            uo = $('uo'+userdata.user_id);
            new Effect.Appear(uo, {duration:1.0});
		}
	});
	
	
	
	function formatText(text) {
		text = text.replace(/\r\n/g,"\n"); // DOS to Unix
		text = text.replace(/\r/g,"\n"); // Mac to Unix

		text = text.replace(/\[b\]/g,'<b>');
		text = text.replace(/\[i\]/g,'<i>');
		text = text.replace(/\[u\]/g,'<u>');
		text = text.replace(/\[\/b\]/g,'<\/b>');
		text = text.replace(/\[\/i\]/g,'<\/i>');
		text = text.replace(/\[\/u\]/g,'<\/u>');		
		
		// Make sure text ends with a couple of newlines:
		text = text + "\n\n";

		text = text.replace(/^\n+/g,"");
		text = text.replace(/\n+$/g,"");
		
		var grafs = text.split(/\n{2,}/g);
		var grafsOut = new Array();

		// Wrap <p> tags.
		var end = grafs.length;
		for (var i=0; i<end; i++) {
			var str = grafs[i];

			// if this is an HTML marker, copy it
			if (str.search(/~K(\d+)K/g) >= 0) {
				grafsOut.push(str);
			}
			else if (str.search(/\S/) >= 0) {
				str = str.replace(/^([ \t]*)/g,"<p>");
				str = str.replace("\n", "\n<br/>");
				str += "</p>"
				grafsOut.push(str);
			}

		}

		// Unhashify HTML blocks
		end = grafsOut.length;
		for (var i=0; i<end; i++) {
			// if this is a marker for an html block...
			while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
				var blockText = g_html_blocks[RegExp.$1];
				blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
				grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
			}
		}

		text = grafsOut.join("\n");
		return text;	
	}


	
	function paymentOverlay()
	{
		switch (paymentOverlayType) {
			case 'normal':
			    var popupHtml = paymentOverlayUnpaid();
			    break;
			case 'upgradeable':
			    var popupHtml = paymentOverlayUpgradable();
			    break;
		}
		$(document.body).insert(popupHtml);
		$(document.body).addClassName('dimmed');
	}
	
	function paymentOverlayUpgradable() // Upgradeable
	{
	    var lang = paymentOverlayLang;
		var popupHtml = '<div id="paymentOverlay" class="infoPopup">';
		popupHtml += '<div class="closelink"><a href="#" onclick="closePaymentOverlay();">'+lang['close']+'</a></div>';
		popupHtml += '<h3>'+lang['title']+'</h3>';
		//popupHtml += '<a class="premiumLink" href="'+lang['button_link_url']+'"><img src="'+lang['button_image_url']+'" /></a>';
		popupHtml += '<a class="premiumLink '+lang['button_a_tag_class']+'" href="'+lang['button_link_url']+'"></a>';
		popupHtml += '<ul><li>'+lang['advantage_1']+'</li>';
		popupHtml += '<li>'+lang['advantage_2']+'</li></ul>';
		popupHtml += '<p style="margin:15px 0 0 55px;"><a href="'+lang['premium_futher_info_url']+'">'+lang['premium_futher_info']+'</a></p>';
		popupHtml += '</div>';
		return popupHtml;
	}
	
	function paymentOverlayUnpaid() // Unpaid
	{
	    var lang  = paymentOverlayLang;
		var popupHtml = '<div id="paymentOverlay" class="infoPopup">';
		popupHtml += '<div class="closelink"><a href="#" onclick="closePaymentOverlay();">'+lang['close']+'</a></div>';
		popupHtml += '<h3>'+lang['title']+'</h3>';
		popupHtml += '<p>'+lang['bodytext']+'</p>';
		popupHtml += '<a class="premiumLink '+lang['button_a_tag_class']+'" href="'+lang['button_link_url']+'"></a>';
		popupHtml += '</div>';
		return popupHtml;
	}
	
	function closePaymentOverlay()
	{
        $('paymentOverlay').remove();
        $(document.body).removeClassName('dimmed');
	}

// ----

var fx=new Object();fx.Base=function(){};fx.Base.prototype={setOptions:function(a){this.options={duration:500,onComplete:"",transition:fx.sinoidal};Object.extend(this.options,a||{})},step:function(){var b=(new Date).getTime();if(b>=this.options.duration+this.startTime){this.now=this.to;clearInterval(this.timer);this.timer=null;if(this.options.onComplete){setTimeout(this.options.onComplete.bind(this),10)}}else{var a=(b-this.startTime)/(this.options.duration);this.now=this.options.transition(a)*(this.to-this.from)+this.from}this.increase()},custom:function(b,a){if(this.timer!=null){return}this.from=b;this.to=a;this.startTime=(new Date).getTime();this.timer=setInterval(this.step.bind(this),13)},hide:function(){this.now=0;this.increase()},clearTimer:function(){clearInterval(this.timer);this.timer=null}};fx.Layout=Class.create();fx.Layout.prototype=Object.extend(new fx.Base(),{initialize:function(b,a){this.el=$(b);this.el.style.overflow="hidden";this.iniWidth=this.el.offsetWidth;this.iniHeight=this.el.offsetHeight;this.setOptions(a)}});fx.Height=Class.create();Object.extend(Object.extend(fx.Height.prototype,fx.Layout.prototype),{increase:function(){this.el.style.height=this.now+"px"},toggle:function(){if(this.el.offsetHeight>0){this.custom(this.el.offsetHeight,0)}else{this.custom(0,this.el.scrollHeight)}}});fx.Width=Class.create();Object.extend(Object.extend(fx.Width.prototype,fx.Layout.prototype),{increase:function(){this.el.style.width=this.now+"px"},toggle:function(){if(this.el.offsetWidth>0){this.custom(this.el.offsetWidth,0)}else{this.custom(0,this.iniWidth)}}});fx.Opacity=Class.create();fx.Opacity.prototype=Object.extend(new fx.Base(),{initialize:function(b,a){this.el=$(b);this.now=1;this.increase();this.setOptions(a)},increase:function(){if(this.now==1&&(/Firefox/.test(navigator.userAgent))){this.now=0.9999}this.setOpacity(this.now)},setOpacity:function(a){if(a==0&&this.el.style.visibility!="hidden"){this.el.style.visibility="hidden"}else{if(this.el.style.visibility!="visible"){this.el.style.visibility="visible"}}if(window.ActiveXObject){this.el.style.filter="alpha(opacity="+a*100+")"}this.el.style.opacity=a},toggle:function(){if(this.now>0){this.custom(1,0)}else{this.custom(0,1)}}});fx.sinoidal=function(a){return((-Math.cos(a*Math.PI)/2)+0.5)};fx.linear=function(a){return a};fx.cubic=function(a){return Math.pow(a,3)};fx.circ=function(a){return Math.sqrt(a)};