document.write('<link href="http://www.quvion-nls.de/b68/themes/default.css" rel="stylesheet" type="text/css"/>');
document.write('<link href="http://www.quvion-nls.de/b68/themes/alphacube.css" rel="stylesheet" type="text/css"/>');


/*  Prototype JavaScript framework, version 1.5.1_rc3
 *  (c) 2005-2007 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: '1.5.1_rc3',

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

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

  ScriptFragment: '<script[^>]*>([\u0001-\uFFFF]*?)</script>',
  JSONFilter: /^\/\*-secure-\s*(.*)\s*\*\/\s*$/,

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

var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

var Abstract = new Object();

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

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

  toJSON: function(object) {
    var type = typeof object;
    switch(type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }
    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (object.ownerDocument === document) return;
    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (value !== undefined)
        results.push(property.toJSON() + ': ' + value);
    }
    return '{' + results.join(', ') + '}';
  },

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

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

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

Function.prototype.bind = function() {
  var __method = this, args = $A(arguments), object = args.shift();
  return function() {
    return __method.apply(object, args.concat($A(arguments)));
  }
}

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

Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

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

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

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

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

Date.prototype.toJSON = function() {
  return '"' + this.getFullYear() + '-' +
    (this.getMonth() + 1).toPaddedString(2) + '-' +
    this.getDate().toPaddedString(2) + 'T' +
    this.getHours().toPaddedString(2) + ':' +
    this.getMinutes().toPaddedString(2) + ':' +
    this.getSeconds().toPaddedString(2) + '"';
};

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;
  }
}

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

var PeriodicalExecuter = Class.create();
PeriodicalExecuter.prototype = {
  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);
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  times: function(count) {
    var result = '';
    for (var i = 0; i < count; i++) result += this;
    return result;
  },

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

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

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

    return camelized;
  },

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

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

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

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

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

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

  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.test(json)))
        return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

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

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

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

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

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

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

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

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

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

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

var Template = Class.create();
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype = {
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern  = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    return this.template.gsub(this.pattern, function(match) {
      var before = match[1];
      if (before == '\\') return match[2];
      return before + String.interpret(object[match[3]]);
    });
  }
}

var $break    = new Object();
var $continue = new Object();

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

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

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

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

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

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

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

  grep: function(pattern, iterator) {
    var results = [];
    this.each(function(value, index) {
      var stringValue = value.toString();
      if (stringValue.match(pattern))
        results.push((iterator || Prototype.K)(value, index));
    })
    return results;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray
});
var $A = Array.from = function(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) {
    return iterable.toArray();
  } else {
    var results = [];
    for (var i = 0, length = iterable.length; i < length; i++)
      results.push(iterable[i]);
    return results;
  }
}

if (Prototype.Browser.WebKit) {
  $A = Array.from = function(iterable) {
    if (!iterable) return [];
    if (!(typeof iterable == 'function' && iterable == '[object NodeList]') &&
      iterable.toArray) {
      return iterable.toArray();
    } else {
      var results = [];
      for (var i = 0, length = iterable.length; i < length; i++)
        results.push(iterable[i]);
      return results;
    }
  }
}

Object.extend(Array.prototype, Enumerable);

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

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

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

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

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

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

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(value && value.constructor == Array ?
        value.flatten() : [value]);
    });
  },

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

  indexOf: function(object) {
    for (var i = 0, length = this.length; i < length; i++)
      if (this[i] == object) return i;
    return -1;
  },

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

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

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

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

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

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

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

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

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

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (arguments[i].constructor == Array) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  }
}
var Hash = function(object) {
  if (object instanceof Hash) this.merge(object);
  else Object.extend(this, object || {});
};

Object.extend(Hash, {
  toQueryString: function(obj) {
    var parts = [];
    parts.add = arguments.callee.addPair;

    this.prototype._each.call(obj, function(pair) {
      if (!pair.key) return;
      var value = pair.value;

      if (value && typeof value == 'object') {
        if (value.constructor == Array) value.each(function(value) {
          parts.add(pair.key, value);
        });
        return;
      }
      parts.add(pair.key, value);
    });

    return parts.join('&');
  },

  toJSON: function(object) {
    var results = [];
    this.prototype._each.call(object, function(pair) {
      var value = Object.toJSON(pair.value);
      if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value);
    });
    return '{' + results.join(', ') + '}';
  }
});

Hash.toQueryString.addPair = function(key, value, prefix) {
  key = encodeURIComponent(key);
  if (value === undefined) this.push(key);
  else this.push(key + '=' + (value == null ? '' : encodeURIComponent(value)));
}

Object.extend(Hash.prototype, Enumerable);
Object.extend(Hash.prototype, {
  _each: function(iterator) {
    for (var key in this) {
      var value = this[key];
      if (value && value == Hash.prototype[key]) continue;

      var pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  },

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

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

  merge: function(hash) {
    return $H(hash).inject(this, function(mergedHash, pair) {
      mergedHash[pair.key] = pair.value;
      return mergedHash;
    });
  },

  remove: function() {
    var result;
    for(var i = 0, length = arguments.length; i < length; i++) {
      var value = this[arguments[i]];
      if (value !== undefined){
        if (result === undefined) result = value;
        else {
          if (result.constructor != Array) result = [result];
          result.push(value)
        }
      }
      delete this[arguments[i]];
    }
    return result;
  },

  toQueryString: function() {
    return Hash.toQueryString(this);
  },

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

  toJSON: function() {
    return Hash.toJSON(this);
  }
});

function $H(object) {
  if (object instanceof Hash) return object;
  return new Hash(object);
};

// Safari iterates over shadowed properties
if (function() {
  var i = 0, Test = function(value) { this.key = value };
  Test.prototype.key = 'foo';
  for (var property in new Test('bar')) i++;
  return i > 1;
}()) Hash.prototype._each = function(iterator) {
  var cache = [];
  for (var key in this) {
    var value = this[key];
    if ((value && value == Hash.prototype[key]) || cache.include(key)) continue;
    cache.push(key);
    var pair = [key, value];
    pair.key = key;
    pair.value = value;
    iterator(pair);
  }
};
ObjectRange = Class.create();
Object.extend(ObjectRange.prototype, Enumerable);
Object.extend(ObjectRange.prototype, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

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

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

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

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

  activeRequestCount: 0
}

Ajax.Responders = {
  responders: [],

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

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

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

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (typeof responder[callback] == 'function') {
        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 = function() {};
Ajax.Base.prototype = {
  setOptions: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   ''
    }
    Object.extend(this.options, options || {});

    this.options.method = this.options.method.toLowerCase();
    if (typeof this.options.parameters == 'string')
      this.options.parameters = this.options.parameters.toQueryParams();
  }
}

Ajax.Request = Class.create();
Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
  _complete: false,

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

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

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

    this.parameters = params;

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

    try {
      if (this.options.onCreate) this.options.onCreate(this.transport);
      Ajax.Responders.dispatch('onCreate', this, this.transport);

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

      if (this.options.asynchronous)
        setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);

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

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

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

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

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

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

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

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

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

      if (typeof extras.push == 'function')
        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() {
    return !this.transport.status
        || (this.transport.status >= 200 && this.transport.status < 300);
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState];
    var transport = this.transport, json = this.evalJSON();

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

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

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

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

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

  evalJSON: function() {
    try {
      var json = this.getHeader('X-JSON');
      return json ? json.evalJSON() : 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.Updater = Class.create();

Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
  initialize: function(container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    }

    this.transport = Ajax.getTransport();
    this.setOptions(options);

    var onComplete = this.options.onComplete || Prototype.emptyFunction;
    this.options.onComplete = (function(transport, param) {
      this.updateContent();
      onComplete(transport, param);
    }).bind(this);

    this.request(url);
  },

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

    if (!this.options.evalScripts) response = response.stripScripts();

    if (receiver = $(receiver)) {
      if (this.options.insertion)
        new this.options.insertion(receiver, response);
      else
        receiver.update(response);
    }

    if (this.success()) {
      if (this.onComplete)
        setTimeout(this.onComplete.bind(this), 10);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create();
Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
  initialize: function(container, url, options) {
    this.setOptions(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(request) {
    if (this.options.decay) {
      this.decay = (request.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = request.responseText;
    }
    this.timer = setTimeout(this.onTimerEvent.bind(this),
      this.decay * this.frequency * 1000);
  },

  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 (typeof element == 'string')
    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(query.snapshotItem(i));
    return results;
  };

  document.getElementsByClassName = function(className, parentElement) {
    var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";
    return document._getElementsByXPath(q, parentElement);
  }

} else document.getElementsByClassName = function(className, parentElement) {
  var children = ($(parentElement) || document.body).getElementsByTagName('*');
  var elements = [], child;
  for (var i = 0, length = children.length; i < length; i++) {
    child = children[i];
    if (Element.hasClassName(child, className))
      elements.push(Element.extend(child));
  }
  return elements;
};

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

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

Element.extend = function(element) {
  var F = Prototype.BrowserFeatures;
  if (!element || !element.tagName || element.nodeType == 3 ||
   element._extended || F.SpecificElementExtensions || element == window)
    return element;

  var methods = {}, tagName = element.tagName, cache = Element.extend.cache,
   T = Element.Methods.ByTag;

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

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

  for (var property in methods) {
    var value = methods[property];
    if (typeof value == 'function' && !(property in element))
      element[property] = cache.findOrStore(value);
  }

  element._extended = Prototype.emptyFunction;
  return element;
};

Element.extend.cache = {
  findOrStore: function(value) {
    return this[value] = this[value] || function() {
      return value.apply(null, [this].concat($A(arguments)));
    }
  }
};

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

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

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

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

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

  update: function(element, html) {
    html = typeof html == 'undefined' ? '' : html.toString();
    $(element).innerHTML = html.stripScripts();
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  replace: function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    if (element.outerHTML) {
      element.outerHTML = html.stripScripts();
    } else {
      var range = element.ownerDocument.createRange();
      range.selectNodeContents(element);
      element.parentNode.replaceChild(
        range.createContextualFragment(html.stripScripts()), element);
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

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

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

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

  descendants: function(element) {
    return $A($(element).getElementsByTagName('*')).each(Element.extend);
  },

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

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

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

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

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

  match: function(element, selector) {
    if (typeof selector == 'string')
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return expression ? Selector.findElement(ancestors, expression, index) :
      ancestors[index || 0];
  },

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

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return expression ? Selector.findElement(previousSiblings, expression, index) :
      previousSiblings[index || 0];
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return expression ? Selector.findElement(nextSiblings, expression, index) :
      nextSiblings[index || 0];
  },

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

  getElementsByClassName: function(element, className) {
    return document.getElementsByClassName(className, element);
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      if (!element.attributes) return null;
      var t = Element._attributeTranslations;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name])  name = t.names[name];
      var attribute = element.attributes[name];
      return attribute ? attribute.nodeValue : null;
    }
    return element.getAttribute(name);
  },

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

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

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

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

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).add(className);
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).remove(className);
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className);
    return element;
  },

  observe: function() {
    Event.observe.apply(Event, arguments);
    return $A(arguments).first();
  },

  stopObserving: function() {
    Event.stopObserving.apply(Event, arguments);
    return $A(arguments).first();
  },

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

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

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    while (element = element.parentNode)
      if (element == ancestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = Position.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) {
      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, camelized) {
    element = $(element);
    var elementStyle = element.style;

    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property])
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :
          (camelized ? property : property.camelize())] = styles[property];

    return element;
  },

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

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

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

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

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

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

Object.extend(Element.Methods, {
  childOf: Element.Methods.descendantOf,
  childElements: Element.Methods.immediateDescendants
});

if (Prototype.Browser.Opera) {
  Element.Methods._getStyle = Element.Methods.getStyle;
  Element.Methods.getStyle = function(element, style) {
    switch(style) {
      case 'left':
      case 'top':
      case 'right':
      case 'bottom':
        if (Element._getStyle(element, 'position') == 'static') return null;
      default: return Element._getStyle(element, style);
    }
  };
}
else if (Prototype.Browser.IE) {
  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) {
    element = $(element);
    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      style.filter = filter.replace(/alpha\([^\)]*\)/gi,'');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = filter.replace(/alpha\([^\)]*\)/gi, '') +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  // IE is missing .innerHTML support for TABLE-related elements
  Element.Methods.update = function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    var tagName = element.tagName.toUpperCase();
    if (['THEAD','TBODY','TR','TD'].include(tagName)) {
      var div = document.createElement('div');
      switch (tagName) {
        case 'THEAD':
        case 'TBODY':
          div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';
          depth = 2;
          break;
        case 'TR':
          div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';
          depth = 3;
          break;
        case 'TD':
          div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';
          depth = 4;
      }
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      depth.times(function() { div = div.firstChild });
      $A(div.childNodes).each(function(node) { element.appendChild(node) });
    } else {
      element.innerHTML = html.stripScripts();
    }
    setTimeout(function() { html.evalScripts() }, 10);
    return element;
  }
}
else if (Prototype.Browser.Gecko) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

Element._attributeTranslations = {
  names: {
    colspan:   "colSpan",
    rowspan:   "rowSpan",
    valign:    "vAlign",
    datetime:  "dateTime",
    accesskey: "accessKey",
    tabindex:  "tabIndex",
    enctype:   "encType",
    maxlength: "maxLength",
    readonly:  "readOnly",
    longdesc:  "longDesc"
  },
  values: {
    _getAttr: function(element, attribute) {
      return element.getAttribute(attribute, 2);
    },
    _flag: function(element, attribute) {
      return $(element).hasAttribute(attribute) ? attribute : null;
    },
    style: function(element) {
      return element.style.cssText.toLowerCase();
    },
    title: function(element) {
      var node = element.getAttributeNode('title');
      return node.specified ? node.nodeValue : null;
    }
  }
};

(function() {
  Object.extend(this, {
    href: this._getAttr,
    src:  this._getAttr,
    disabled: this._flag,
    checked:  this._flag,
    readonly: this._flag,
    multiple: this._flag
  });
}).call(Element._attributeTranslations.values);

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

Element.Methods.ByTag = {};

Object.extend(Element, Element.Methods);

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

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

  if (!tagName) Object.extend(Element.Methods, methods || {});
  else {
    if (tagName.constructor == Array) 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;
    var cache = Element.extend.cache;
    for (var property in methods) {
      var value = methods[property];
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = cache.findOrStore(value);
    }
  }

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

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

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

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

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

var Toggle = { display: Element.toggle };

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

Abstract.Insertion = function(adjacency) {
  this.adjacency = adjacency;
}

Abstract.Insertion.prototype = {
  initialize: function(element, content) {
    this.element = $(element);
    this.content = content.stripScripts();

    if (this.adjacency && this.element.insertAdjacentHTML) {
      try {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
      } catch (e) {
        var tagName = this.element.tagName.toUpperCase();
        if (['TBODY', 'TR'].include(tagName)) {
          this.insertContent(this.contentFromAnonymousTable());
        } else {
          throw e;
        }
      }
    } else {
      this.range = this.element.ownerDocument.createRange();
      if (this.initializeRange) this.initializeRange();
      this.insertContent([this.range.createContextualFragment(this.content)]);
    }

    setTimeout(function() {content.evalScripts()}, 10);
  },

  contentFromAnonymousTable: function() {
    var div = document.createElement('div');
    div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
    return $A(div.childNodes[0].childNodes[0].childNodes);
  }
}

var Insertion = new Object();

Insertion.Before = Class.create();
Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
  initializeRange: function() {
    this.range.setStartBefore(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment, this.element);
    }).bind(this));
  }
});

Insertion.Top = Class.create();
Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(true);
  },

  insertContent: function(fragments) {
    fragments.reverse(false).each((function(fragment) {
      this.element.insertBefore(fragment, this.element.firstChild);
    }).bind(this));
  }
});

Insertion.Bottom = Class.create();
Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.appendChild(fragment);
    }).bind(this));
  }
});

Insertion.After = Class.create();
Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
  initializeRange: function() {
    this.range.setStartAfter(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment,
        this.element.nextSibling);
    }).bind(this));
  }
});

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

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);
/* 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();

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

  compileMatcher: function() {
    // Selectors with namespaced attributes can't use the XPath version
    if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression))
      return this.compileXPathMatcher();

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

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

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

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

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

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

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

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

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

  match: function(element) {
    return this.findElements(document).include(element);
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  serializeElements: function(elements, getHash) {
    var data = elements.inject({}, function(result, element) {
      if (!element.disabled && element.name) {
        var key = element.name, value = $(element).getValue();
        if (value != null) {
         	if (key in result) {
            if (result[key].constructor != Array) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return getHash ? data : Hash.toQueryString(data);
  }
};

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

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

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

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

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

    return matchingInputs;
  },

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

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

  findFirstElement: function(form) {
    return $(form).getElements().find(function(element) {
      return element.type != 'hidden' && !element.disabled &&
        ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

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

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

    var params = options.parameters;
    options.parameters = form.serialize(true);

    if (params) {
      if (typeof params == 'string') params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

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

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

Object.extend(Form, Form.Methods);

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

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 Hash.toQueryString(pair);
      }
    }
    return '';
  },

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

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

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

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

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

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

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)
});

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

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

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

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

  inputSelector: function(element) {
    return element.checked ? element.value : null;
  },

  textarea: function(element) {
    return element.value;
  },

  select: function(element) {
    return this[element.type == 'select-one' ?
      'selectOne' : 'selectMany'](element);
  },

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

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

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

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

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

Abstract.TimedObserver = function() {}
Abstract.TimedObserver.prototype = {
  initialize: function(element, frequency, callback) {
    this.frequency = frequency;
    this.element   = $(element);
    this.callback  = callback;

    this.lastValue = this.getValue();
    this.registerCallback();
  },

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

  onTimerEvent: function() {
    var value = this.getValue();
    var changed = ('string' == typeof this.lastValue && 'string' == typeof value
      ? this.lastValue != value : String(this.lastValue) != String(value));
    if (changed) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
}

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

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

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

Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {
  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.bind(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();
Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

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

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

  element: function(event) {
    return $(event.target || event.srcElement);
  },

  isLeftClick: function(event) {
    return (((event.which) && (event.which == 1)) ||
            ((event.button) && (event.button == 1)));
  },

  pointerX: function(event) {
    return event.pageX || (event.clientX +
      (document.documentElement.scrollLeft || document.body.scrollLeft));
  },

  pointerY: function(event) {
    return event.pageY || (event.clientY +
      (document.documentElement.scrollTop || document.body.scrollTop));
  },

  stop: function(event) {
    if (event.preventDefault) {
      event.preventDefault();
      event.stopPropagation();
    } else {
      event.returnValue = false;
      event.cancelBubble = true;
    }
  },

  // find the first node with the given tagName, starting from the
  // node the event was triggered on; traverses the DOM upwards
  findElement: function(event, tagName) {
    var element = Event.element(event);
    while (element.parentNode && (!element.tagName ||
        (element.tagName.toUpperCase() != tagName.toUpperCase())))
      element = element.parentNode;
    return element;
  },

  observers: false,

  _observeAndCache: function(element, name, observer, useCapture) {
    if (!this.observers) this.observers = [];
    if (element.addEventListener) {
      this.observers.push([element, name, observer, useCapture]);
      element.addEventListener(name, observer, useCapture);
    } else if (element.attachEvent) {
      this.observers.push([element, name, observer, useCapture]);
      element.attachEvent('on' + name, observer);
    }
  },

  unloadCache: function() {
    if (!Event.observers) return;
    for (var i = 0, length = Event.observers.length; i < length; i++) {
      Event.stopObserving.apply(this, Event.observers[i]);
      Event.observers[i][0] = null;
    }
    Event.observers = false;
  },

  observe: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
      (Prototype.Browser.WebKit || element.attachEvent))
      name = 'keydown';

    Event._observeAndCache(element, name, observer, useCapture);
  },

  stopObserving: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (Prototype.Browser.WebKit || element.attachEvent))
      name = 'keydown';

    if (element.removeEventListener) {
      element.removeEventListener(name, observer, useCapture);
    } else if (element.detachEvent) {
      try {
        element.detachEvent('on' + name, observer);
      } catch (e) {}
    }
  }
});

/* prevent memory leaks in IE */
if (Prototype.Browser.IE)
  Event.observe(window, 'unload', Event.unloadCache, false);
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,

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

  realOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return [valueL, valueT];
  },

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

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

  offsetParent: 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;
  },

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

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

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

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

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

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

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

    } while (element = element.offsetParent);

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

    return [valueL, valueT];
  },

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

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

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

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

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

  absolutize: function(element) {
    element = $(element);
    if (element.style.position == 'absolute') return;
    Position.prepare();

    var offsets = Position.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';
  },

  relativize: function(element) {
    element = $(element);
    if (element.style.position == 'relative') return;
    Position.prepare();

    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;
  }
}

// Safari returns margins on body which is incorrect if the child is absolutely
// positioned.  For performance reasons, redefine Position.cumulativeOffset for
// KHTML/WebKit only.
if (Prototype.Browser.WebKit) {
  Position.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 [valueL, valueT];
  }
}

Element.addMethods();

// Copyright (c) 2006 Sébastien Gruhier (http://xilinus.com, http://itseb.com)
// 
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// VERSION 1.3

var Window = Class.create();

Window.keepMultiModalWindow = false;
Window.hasEffectLib = (typeof Effect != 'undefined');
Window.resizeEffectDuration = 0.4;

Window.prototype = {
  // Constructor
  // Available parameters : className, blurClassName, title, minWidth, minHeight, maxWidth, maxHeight, width, height, top, left, bottom, right, resizable, zIndex, opacity, recenterAuto, wiredDrag
  //                        hideEffect, showEffect, showEffectOptions, hideEffectOptions, effectOptions, url, draggable, closable, minimizable, maximizable, parent, onload
  //                        add all callbacks (if you do not use an observer)
  //                        onDestroy onStartResize onStartMove onResize onMove onEndResize onEndMove onFocus onBlur onBeforeShow onShow onHide onMinimize onMaximize onClose
  
  initialize: function() {
    var id;
    var optionIndex = 0;
    // For backward compatibility like win= new Window("id", {...}) instead of win = new Window({id: "id", ...})
    if (arguments.length > 0) {
      if (typeof arguments[0] == "string" ) {
        id = arguments[0];
        optionIndex = 1;
      }
      else
        id = arguments[0] ? arguments[0].id : null;
    }
    
    // Generate unique ID if not specified
    if (!id)
      id = "window_" + new Date().getTime();
      
    if ($(id))
      alert("Window " + id + " is already registered in the DOM! Make sure you use setDestroyOnClose() or destroyOnClose: true in the constructor");

    this.options = Object.extend({
      className:         "dialog",
      blurClassName:     null,
      minWidth:          100, 
      minHeight:         20,
      resizable:         true,
      closable:          true,
      minimizable:       true,
      maximizable:       true,
      draggable:         true,
      userData:          null,
      showEffect:        (Window.hasEffectLib ? Effect.Appear : Element.show),
      hideEffect:        (Window.hasEffectLib ? Effect.Fade : Element.hide),
      showEffectOptions: {},
      hideEffectOptions: {},
      effectOptions:     null,
      parent:            document.body,
      title:             "&nbsp;",
      url:               null,
      onload:            Prototype.emptyFunction,
      width:             200,
      height:            300,
      opacity:           1,
      recenterAuto:      true,
      wiredDrag:         false,
      closeCallback:     null,
      destroyOnClose:    false,
      gridX:             1, 
      gridY:             1      
    }, arguments[optionIndex] || {});
    if (this.options.blurClassName)
      this.options.focusClassName = this.options.className;
      
    if (typeof this.options.top == "undefined" &&  typeof this.options.bottom ==  "undefined") 
      this.options.top = this._round(Math.random()*500, this.options.gridY);
    if (typeof this.options.left == "undefined" &&  typeof this.options.right ==  "undefined") 
      this.options.left = this._round(Math.random()*500, this.options.gridX);

    if (this.options.effectOptions) {
      Object.extend(this.options.hideEffectOptions, this.options.effectOptions);
      Object.extend(this.options.showEffectOptions, this.options.effectOptions);
      if (this.options.showEffect == Element.Appear)
        this.options.showEffectOptions.to = this.options.opacity;
    }
    if (Window.hasEffectLib) {
      if (this.options.showEffect == Effect.Appear)
        this.options.showEffectOptions.to = this.options.opacity;
    
      if (this.options.hideEffect == Effect.Fade)
        this.options.hideEffectOptions.from = this.options.opacity;
    }
    if (this.options.hideEffect == Element.hide)
      this.options.hideEffect = function(){ Element.hide(this.element); if (this.options.destroyOnClose) this.destroy(); }.bind(this)
    
    if (this.options.parent != document.body)  
      this.options.parent = $(this.options.parent);
      
    this.element = this._createWindow(id);       
    this.element.win = this;
    
    // Bind event listener
    this.eventMouseDown = this._initDrag.bindAsEventListener(this);
    this.eventMouseUp   = this._endDrag.bindAsEventListener(this);
    this.eventMouseMove = this._updateDrag.bindAsEventListener(this);
    this.eventOnLoad    = this._getWindowBorderSize.bindAsEventListener(this);
    this.eventMouseDownContent = this.toFront.bindAsEventListener(this);
    this.eventResize = this._recenter.bindAsEventListener(this);
 
    this.topbar = $(this.element.id + "_top");
    this.bottombar = $(this.element.id + "_bottom");
    this.content = $(this.element.id + "_content");
    
    Event.observe(this.topbar, "mousedown", this.eventMouseDown);
    Event.observe(this.bottombar, "mousedown", this.eventMouseDown);
    Event.observe(this.content, "mousedown", this.eventMouseDownContent);
    Event.observe(window, "load", this.eventOnLoad);
    Event.observe(window, "resize", this.eventResize);
    Event.observe(window, "scroll", this.eventResize);
    Event.observe(this.options.parent, "scroll", this.eventResize);
    
    if (this.options.draggable)  {
      var that = this;
      [this.topbar, this.topbar.up().previous(), this.topbar.up().next()].each(function(element) {
        element.observe("mousedown", that.eventMouseDown);
        element.addClassName("top_draggable");
      });
      [this.bottombar.up(), this.bottombar.up().previous(), this.bottombar.up().next()].each(function(element) {
        element.observe("mousedown", that.eventMouseDown);
        element.addClassName("bottom_draggable");
      });
      
    }    
    
    if (this.options.resizable) {
      this.sizer = $(this.element.id + "_sizer");
      Event.observe(this.sizer, "mousedown", this.eventMouseDown);
    }  
    
    this.useLeft = null;
    this.useTop = null;
    if (typeof this.options.left != "undefined") {
      this.element.setStyle({left: parseFloat(this.options.left) + 'px'});
      this.useLeft = true;
    }
    else {
      this.element.setStyle({right: parseFloat(this.options.right) + 'px'});
      this.useLeft = false;
    }
    
    if (typeof this.options.top != "undefined") {
      this.element.setStyle({top: parseFloat(this.options.top) + 'px'});
      this.useTop = true;
    }
    else {
      this.element.setStyle({bottom: parseFloat(this.options.bottom) + 'px'});      
      this.useTop = false;
    }
      
    this.storedLocation = null;
    
    this.setOpacity(this.options.opacity);
    if (this.options.zIndex)
      this.setZIndex(this.options.zIndex)

    if (this.options.destroyOnClose)
      this.setDestroyOnClose(true);

    this._getWindowBorderSize();
    this.width = this.options.width;
    this.height = this.options.height;
    this.visible = false;
    
    this.constraint = false;
    this.constraintPad = {top: 0, left:0, bottom:0, right:0};
    
    if (this.width && this.height)
      this.setSize(this.options.width, this.options.height);
    this.setTitle(this.options.title)
    Windows.register(this);      
  },
  
  // Destructor
  destroy: function() {
    this._notify("onDestroy");
    Event.stopObserving(this.topbar, "mousedown", this.eventMouseDown);
    Event.stopObserving(this.bottombar, "mousedown", this.eventMouseDown);
    Event.stopObserving(this.content, "mousedown", this.eventMouseDownContent);
    
    Event.stopObserving(window, "load", this.eventOnLoad);
    Event.stopObserving(window, "resize", this.eventResize);
    Event.stopObserving(window, "scroll", this.eventResize);
    
    Event.stopObserving(this.content, "load", this.options.onload);

    if (this._oldParent) {
      var content = this.getContent();
      var originalContent = null;
      for(var i = 0; i < content.childNodes.length; i++) {
        originalContent = content.childNodes[i];
        if (originalContent.nodeType == 1) 
          break;
        originalContent = null;
      }
      if (originalContent)
        this._oldParent.appendChild(originalContent);
      this._oldParent = null;
    }

    if (this.sizer)
        Event.stopObserving(this.sizer, "mousedown", this.eventMouseDown);

    if (this.options.url) 
      this.content.src = null

     if(this.iefix) 
      Element.remove(this.iefix);

    Element.remove(this.element);
    Windows.unregister(this);      
  },
    
  // Sets close callback, if it sets, it should return true to be able to close the window.
  setCloseCallback: function(callback) {
    this.options.closeCallback = callback;
  },
  
  // Gets window content
  getContent: function () {
    return this.content;
  },
  
  // Sets the content with an element id
  setContent: function(id, autoresize, autoposition) {
    var element = $(id);
    if (null == element) throw "Unable to find element '" + id + "' in DOM";
    this._oldParent = element.parentNode;

    var d = null;
    var p = null;

    if (autoresize) 
      d = Element.getDimensions(element);
    if (autoposition) 
      p = Position.cumulativeOffset(element);

    var content = this.getContent();
    // Clear HTML (and even iframe)
    this.setHTMLContent("");
    content = this.getContent();
    
    content.appendChild(element);
    element.show();
    if (autoresize) 
      this.setSize(d.width, d.height);
    if (autoposition) 
      this.setLocation(p[1] - this.heightN, p[0] - this.widthW);    
  },
  
  setHTMLContent: function(html) {
    // It was an url (iframe), recreate a div content instead of iframe content
    if (this.options.url) {
      this.content.src = null;
      this.options.url = null;
      
  	  var content ="<div id=\"" + this.getId() + "_content\" class=\"" + this.options.className + "_content\"> </div>";
      $(this.getId() +"_table_content").innerHTML = content;
      
      this.content = $(this.element.id + "_content");
    }
      
    this.getContent().innerHTML = html;
  },
  
  setAjaxContent: function(url, options, showCentered, showModal) {
    this.showFunction = showCentered ? "showCenter" : "show";
    this.showModal = showModal || false;
  
    options = options || {};

    // Clear HTML (and even iframe)
    this.setHTMLContent("");
 
    this.onComplete = options.onComplete;
    if (! this._onCompleteHandler)
      this._onCompleteHandler = this._setAjaxContent.bind(this);
    options.onComplete = this._onCompleteHandler;

    new Ajax.Request(url, options);    
    options.onComplete = this.onComplete;
  },
  
  _setAjaxContent: function(originalRequest) {
    Element.update(this.getContent(), originalRequest.responseText);
    if (this.onComplete)
      this.onComplete(originalRequest);
    this.onComplete = null;
    this[this.showFunction](this.showModal)
  },
  
  setURL: function(url) {
    // Not an url content, change div to iframe
    if (this.options.url) 
      this.content.src = null;
    this.options.url = url;
    var content= "<iframe frameborder='0' name='" + this.getId() + "_content'  id='" + this.getId() + "_content' src='" + url + "' width='" + this.width + "' height='" + this.height + "'> </iframe>";
    $(this.getId() +"_table_content").innerHTML = content;
    
    this.content = $(this.element.id + "_content");
  },

  getURL: function() {
  	return this.options.url ? this.options.url : null;
  },

  refresh: function() {
    if (this.options.url)
	    $(this.element.getAttribute('id') + '_content').src = this.options.url;
  },
  
  // Stores position/size in a cookie, by default named with window id
  setCookie: function(name, expires, path, domain, secure) {
    name = name || this.element.id;
    this.cookie = [name, expires, path, domain, secure];
    
    // Get cookie
    var value = WindowUtilities.getCookie(name)
    // If exists
    if (value) {
      var values = value.split(',');
      var x = values[0].split(':');
      var y = values[1].split(':');

      var w = parseFloat(values[2]), h = parseFloat(values[3]);
      var mini = values[4];
      var maxi = values[5];

      this.setSize(w, h);
      if (mini == "true")
        this.doMinimize = true; // Minimize will be done at onload window event
      else if (maxi == "true")
        this.doMaximize = true; // Maximize will be done at onload window event

      this.useLeft = x[0] == "l";
      this.useTop = y[0] == "t";

      this.element.setStyle(this.useLeft ? {left: x[1]} : {right: x[1]});
      this.element.setStyle(this.useTop ? {top: y[1]} : {bottom: y[1]});
    }
  },
  
  // Gets window ID
  getId: function() {
    return this.element.id;
  },
  
  // Detroys itself when closing 
  setDestroyOnClose: function() {
    this.options.destroyOnClose = true;
  },
  
  setConstraint: function(bool, padding) {
    this.constraint = bool;
    this.constraintPad = Object.extend(this.constraintPad, padding || {});
    // Reset location to apply constraint
    if (this.useTop && this.useLeft)
      this.setLocation(parseFloat(this.element.style.top), parseFloat(this.element.style.left));
  },
  
  // initDrag event

  _initDrag: function(event) {
    // No resize on minimized window
    if (Event.element(event) == this.sizer && this.isMinimized())
      return;

    // No move on maximzed window
    if (Event.element(event) != this.sizer && this.isMaximized())
      return;
      
    if (Prototype.Browser.IE && this.heightN == 0)
      this._getWindowBorderSize();
    
    // Get pointer X,Y
    this.pointer = [this._round(Event.pointerX(event), this.options.gridX), this._round(Event.pointerY(event), this.options.gridY)];
    if (this.options.wiredDrag) 
      this.currentDrag = this._createWiredElement();
    else
      this.currentDrag = this.element;
      
    // Resize
    if (Event.element(event) == this.sizer) {
      this.doResize = true;
      this.widthOrg = this.width;
      this.heightOrg = this.height;
      this.bottomOrg = parseFloat(this.element.getStyle('bottom'));
      this.rightOrg = parseFloat(this.element.getStyle('right'));
      this._notify("onStartResize");
    }
    else {
      this.doResize = false;

      // Check if click on close button, 
      var closeButton = $(this.getId() + '_close');
      if (closeButton && Position.within(closeButton, this.pointer[0], this.pointer[1])) {
        this.currentDrag = null;
        return;
      }

      this.toFront();

      if (! this.options.draggable) 
        return;
      this._notify("onStartMove");
    }    
    // Register global event to capture mouseUp and mouseMove
    Event.observe(document, "mouseup", this.eventMouseUp, false);
    Event.observe(document, "mousemove", this.eventMouseMove, false);
    
    // Add an invisible div to keep catching mouse event over iframes
    WindowUtilities.disableScreen('__invisible__', '__invisible__', this.overlayOpacity);

    // Stop selection while dragging
    document.body.ondrag = function () { return false; };
    document.body.onselectstart = function () { return false; };
    
    this.currentDrag.show();
    Event.stop(event);
  },
  
  _round: function(val, round) {
    return round == 1 ? val  : val = Math.floor(val / round) * round;
  },

  // updateDrag event
  _updateDrag: function(event) {
    var pointer =  [this._round(Event.pointerX(event), this.options.gridX), this._round(Event.pointerY(event), this.options.gridY)];  
    var dx = pointer[0] - this.pointer[0];
    var dy = pointer[1] - this.pointer[1];
    
    // Resize case, update width/height
    if (this.doResize) {
      var w = this.widthOrg + dx;
      var h = this.heightOrg + dy;
      
      dx = this.width - this.widthOrg
      dy = this.height - this.heightOrg
      
      // Check if it's a right position, update it to keep upper-left corner at the same position
      if (this.useLeft) 
        w = this._updateWidthConstraint(w)
      else 
        this.currentDrag.setStyle({right: (this.rightOrg -dx) + 'px'});
      // Check if it's a bottom position, update it to keep upper-left corner at the same position
      if (this.useTop) 
        h = this._updateHeightConstraint(h)
      else
        this.currentDrag.setStyle({bottom: (this.bottomOrg -dy) + 'px'});
        
      this.setSize(w , h);
      this._notify("onResize");
    }
    // Move case, update top/left
    else {
      this.pointer = pointer;
      
      if (this.useLeft) {
        var left =  parseFloat(this.currentDrag.getStyle('left')) + dx;
        var newLeft = this._updateLeftConstraint(left);
        // Keep mouse pointer correct
        this.pointer[0] += newLeft-left;
        this.currentDrag.setStyle({left: newLeft + 'px'});
      }
      else 
        this.currentDrag.setStyle({right: parseFloat(this.currentDrag.getStyle('right')) - dx + 'px'});
      
      if (this.useTop) {
        var top =  parseFloat(this.currentDrag.getStyle('top')) + dy;
        var newTop = this._updateTopConstraint(top);
        // Keep mouse pointer correct
        this.pointer[1] += newTop - top;
        this.currentDrag.setStyle({top: newTop + 'px'});
      }
      else 
        this.currentDrag.setStyle({bottom: parseFloat(this.currentDrag.getStyle('bottom')) - dy + 'px'});

      this._notify("onMove");
    }
    if (this.iefix) 
      this._fixIEOverlapping(); 
      
    this._removeStoreLocation();
    Event.stop(event);
  },

   // endDrag callback
   _endDrag: function(event) {
    // Remove temporary div over iframes
     WindowUtilities.enableScreen('__invisible__');
    
    if (this.doResize)
      this._notify("onEndResize");
    else
      this._notify("onEndMove");
    
    // Release event observing
    Event.stopObserving(document, "mouseup", this.eventMouseUp,false);
    Event.stopObserving(document, "mousemove", this.eventMouseMove, false);

    Event.stop(event);
    
    this._hideWiredElement();

    // Store new location/size if need be
    this._saveCookie()
      
    // Restore selection
    document.body.ondrag = null;
    document.body.onselectstart = null;
  },

  _updateLeftConstraint: function(left) {
    if (this.constraint && this.useLeft && this.useTop) {
      var width = this.options.parent == document.body ? WindowUtilities.getPageSize().windowWidth : this.options.parent.getDimensions().width;

      if (left < this.constraintPad.left)
        left = this.constraintPad.left;
      if (left + this.width + this.widthE + this.widthW > width - this.constraintPad.right) 
        left = width - this.constraintPad.right - this.width - this.widthE - this.widthW;
    }
    return left;
  },
  
  _updateTopConstraint: function(top) {
    if (this.constraint && this.useLeft && this.useTop) {        
      var height = this.options.parent == document.body ? WindowUtilities.getPageSize().windowHeight : this.options.parent.getDimensions().height;
      
      var h = this.height + this.heightN + this.heightS;

      if (top < this.constraintPad.top)
        top = this.constraintPad.top;
      if (top + h > height - this.constraintPad.bottom) 
        top = height - this.constraintPad.bottom - h;
    }
    return top;
  },
  
  _updateWidthConstraint: function(w) {
    if (this.constraint && this.useLeft && this.useTop) {
      var width = this.options.parent == document.body ? WindowUtilities.getPageSize().windowWidth : this.options.parent.getDimensions().width;
      var left =  parseFloat(this.element.getStyle("left"));

      if (left + w + this.widthE + this.widthW > width - this.constraintPad.right) 
        w = width - this.constraintPad.right - left - this.widthE - this.widthW;
    }
    return w;
  },
  
  _updateHeightConstraint: function(h) {
    if (this.constraint && this.useLeft && this.useTop) {
      var height = this.options.parent == document.body ? WindowUtilities.getPageSize().windowHeight : this.options.parent.getDimensions().height;
      var top =  parseFloat(this.element.getStyle("top"));

      if (top + h + this.heightN + this.heightS > height - this.constraintPad.bottom) 
        h = height - this.constraintPad.bottom - top - this.heightN - this.heightS;
    }
    return h;
  },
  
  
  // Creates HTML window code
  _createWindow: function(id) {
    var className = this.options.className;
    var win = document.createElement("div");
    win.setAttribute('id', id);
    win.className = "dialog";

    var content;
    if (this.options.url)
      content= "<iframe frameborder=\"0\" name=\"" + id + "_content\"  id=\"" + id + "_content\" src=\"" + this.options.url + "\"> </iframe>";
    else
      content ="<div id=\"" + id + "_content\" class=\"" +className + "_content\"> </div>";

    var closeDiv = this.options.closable ? "<div class='"+ className +"_close' id='"+ id +"_close' onclick='Windows.close(\""+ id +"\", event)'> </div>" : "";
    var minDiv = this.options.minimizable ? "<div class='"+ className + "_minimize' id='"+ id +"_minimize' onclick='Windows.minimize(\""+ id +"\", event)'> </div>" : "";
    var maxDiv = this.options.maximizable ? "<div class='"+ className + "_maximize' id='"+ id +"_maximize' onclick='Windows.maximize(\""+ id +"\", event)'> </div>" : "";
    var seAttributes = this.options.resizable ? "class='" + className + "_sizer' id='" + id + "_sizer'" : "class='"  + className + "_se'";
    var blank = "../themes/default/blank.gif";
    
    win.innerHTML = closeDiv + minDiv + maxDiv + "\
      <table id='"+ id +"_row1' class=\"top table_window\">\
        <tr>\
          <td class='"+ className +"_nw'></td>\
          <td class='"+ className +"_n'><div id='"+ id +"_top' class='"+ className +"_title title_window'>"+ this.options.title +"</div></td>\
          <td class='"+ className +"_ne'></td>\
        </tr>\
      </table>\
      <table id='"+ id +"_row2' class=\"mid table_window\">\
        <tr>\
          <td class='"+ className +"_w'></td>\
            <td id='"+ id +"_table_content' class='"+ className +"_content' valign='top'>" + content + "</td>\
          <td class='"+ className +"_e'></td>\
        </tr>\
      </table>\
        <table id='"+ id +"_row3' class=\"bot table_window\">\
        <tr>\
          <td class='"+ className +"_sw'></td>\
            <td class='"+ className +"_s'><div id='"+ id +"_bottom' class='status_bar'><span style='float:left; width:1px; height:1px'></span></div></td>\
            <td " + seAttributes + "></td>\
        </tr>\
      </table>\
    ";
    Element.hide(win);
    this.options.parent.insertBefore(win, this.options.parent.firstChild);
    Event.observe($(id + "_content"), "load", this.options.onload);
    return win;
  },
  
  
  changeClassName: function(newClassName) {    
    var className = this.options.className;
    var id = this.getId();
    $A(["_close", "_minimize", "_maximize", "_sizer", "_content"]).each(function(value) { this._toggleClassName($(id + value), className + value, newClassName + value) }.bind(this));
    this._toggleClassName($(id + "_top"), className + "_title", newClassName + "_title");
    $$("#" + id + " td").each(function(td) {td.className = td.className.sub(className,newClassName); });
    this.options.className = newClassName;
  },
  
  _toggleClassName: function(element, oldClassName, newClassName) { 
    if (element) {
      element.removeClassName(oldClassName);
      element.addClassName(newClassName);
    }
  },
  
  // Sets window location
  setLocation: function(top, left) {
    top = this._updateTopConstraint(top);
    left = this._updateLeftConstraint(left);

    var e = this.currentDrag || this.element;
    e.setStyle({top: top + 'px'});
    e.setStyle({left: left + 'px'});

    this.useLeft = true;
    this.useTop = true;
  },
    
  getLocation: function() {
    var location = {};
    if (this.useTop)
      location = Object.extend(location, {top: this.element.getStyle("top")});
    else
      location = Object.extend(location, {bottom: this.element.getStyle("bottom")});
    if (this.useLeft)
      location = Object.extend(location, {left: this.element.getStyle("left")});
    else
      location = Object.extend(location, {right: this.element.getStyle("right")});
    
    return location;
  },
  
  // Gets window size
  getSize: function() {
    return {width: this.width, height: this.height};
  },
    
  // Sets window size
  setSize: function(width, height, useEffect) {    
    width = parseFloat(width);
    height = parseFloat(height);
    
    // Check min and max size
    if (!this.minimized && width < this.options.minWidth)
      width = this.options.minWidth;

    if (!this.minimized && height < this.options.minHeight)
      height = this.options.minHeight;
      
    if (this.options. maxHeight && height > this.options. maxHeight)
      height = this.options. maxHeight;

    if (this.options. maxWidth && width > this.options. maxWidth)
      width = this.options. maxWidth;

    
    if (this.useTop && this.useLeft && Window.hasEffectLib && Effect.ResizeWindow && useEffect) {
      new Effect.ResizeWindow(this, null, null, width, height, {duration: Window.resizeEffectDuration});
    } else {
      this.width = width;
      this.height = height;
      var e = this.currentDrag ? this.currentDrag : this.element;

      e.setStyle({width: width + this.widthW + this.widthE + "px"})
      e.setStyle({height: height  + this.heightN + this.heightS + "px"})

      // Update content size
      if (!this.currentDrag || this.currentDrag == this.element) {
        var content = $(this.element.id + '_content');
        content.setStyle({height: height  + 'px'});
        content.setStyle({width: width  + 'px'});
      }
    }
  },
  
  updateHeight: function() {
    this.setSize(this.width, this.content.scrollHeight, true);
  },
  
  updateWidth: function() {
    this.setSize(this.content.scrollWidth, this.height, true);
  },
  
  // Brings window to front
  toFront: function() {
    if (this.element.style.zIndex < Windows.maxZIndex)  
      this.setZIndex(Windows.maxZIndex + 1);
    if (this.iefix) 
      this._fixIEOverlapping(); 
  },
   
  getBounds: function(insideOnly) {
    if (! this.width || !this.height || !this.visible)  
      this.computeBounds();
    var w = this.width;
    var h = this.height;

    if (!insideOnly) {
      w += this.widthW + this.widthE;
      h += this.heightN + this.heightS;
    }
    var bounds = Object.extend(this.getLocation(), {width: w + "px", height: h + "px"});
    return bounds;
  },
      
  computeBounds: function() {
     if (! this.width || !this.height) {
      var size = WindowUtilities._computeSize(this.content.innerHTML, this.content.id, this.width, this.height, 0, this.options.className)
      if (this.height)
        this.width = size + 5
      else
        this.height = size + 5
    }

    this.setSize(this.width, this.height);
    if (this.centered)
      this._center(this.centerTop, this.centerLeft);    
  },
  
  // Displays window modal state or not
  show: function(modal) {
    this.visible = true;
    if (modal) {
      // Hack for Safari !!
      if (typeof this.overlayOpacity == "undefined") {
        var that = this;
        setTimeout(function() {that.show(modal)}, 10);
        return;
      }
      Windows.addModalWindow(this);
      
      this.modal = true;      
      this.setZIndex(Windows.maxZIndex + 1);
      Windows.unsetOverflow(this);
    }
    else    
      if (!this.element.style.zIndex) 
        this.setZIndex(Windows.maxZIndex + 1);        
      
    // To restore overflow if need be
    if (this.oldStyle)
      this.getContent().setStyle({overflow: this.oldStyle});
      
    this.computeBounds();
    
    this._notify("onBeforeShow");   
    if (this.options.showEffect != Element.show && this.options.showEffectOptions)
      this.options.showEffect(this.element, this.options.showEffectOptions);  
    else
      this.options.showEffect(this.element);  
      
    this._checkIEOverlapping();
    WindowUtilities.focusedWindow = this
    this._notify("onShow");   
  },
  
  // Displays window modal state or not at the center of the page
  showCenter: function(modal, top, left) {
    this.centered = true;
    this.centerTop = top;
    this.centerLeft = left;

    this.show(modal);
  },
  
  isVisible: function() {
    return this.visible;
  },
  
  _center: function(top, left) {    
    var windowScroll = WindowUtilities.getWindowScroll(this.options.parent);    
    var pageSize = WindowUtilities.getPageSize(this.options.parent);    
    if (typeof top == "undefined")
      top = (pageSize.windowHeight - (this.height + this.heightN + this.heightS))/2;
    top += windowScroll.top
    
    if (typeof left == "undefined")
      left = (pageSize.windowWidth - (this.width + this.widthW + this.widthE))/2;
    left += windowScroll.left      
    this.setLocation(top, left);
    this.toFront();
  },
  
  _recenter: function(event) {     
    if (this.centered) {
      var pageSize = WindowUtilities.getPageSize(this.options.parent);
      var windowScroll = WindowUtilities.getWindowScroll(this.options.parent);    

      // Check for this stupid IE that sends dumb events
      if (this.pageSize && this.pageSize.windowWidth == pageSize.windowWidth && this.pageSize.windowHeight == pageSize.windowHeight && 
          this.windowScroll.left == windowScroll.left && this.windowScroll.top == windowScroll.top) 
        return;
      this.pageSize = pageSize;
      this.windowScroll = windowScroll;
      // set height of Overlay to take up whole page and show
      if ($('overlay_modal')) 
        $('overlay_modal').setStyle({height: (pageSize.pageHeight + 'px')});
      
      if (this.options.recenterAuto)
        this._center(this.centerTop, this.centerLeft);    
    }
  },
  
  // Hides window
  hide: function() {
    this.visible = false;
    if (this.modal) {
      Windows.removeModalWindow(this);
      Windows.resetOverflow();
    }
    // To avoid bug on scrolling bar
    this.oldStyle = this.getContent().getStyle('overflow') || "auto"
    this.getContent().setStyle({overflow: "hidden"});

    this.options.hideEffect(this.element, this.options.hideEffectOptions);  

     if(this.iefix) 
      this.iefix.hide();

    if (!this.doNotNotifyHide)
      this._notify("onHide");
  },

  close: function() {
    // Asks closeCallback if exists
    if (this.visible) {
      if (this.options.closeCallback && ! this.options.closeCallback(this)) 
        return;

      if (this.options.destroyOnClose) {
        var destroyFunc = this.destroy.bind(this);
        if (this.options.hideEffectOptions.afterFinish) {
          var func = this.options.hideEffectOptions.afterFinish;
          this.options.hideEffectOptions.afterFinish = function() {func();destroyFunc() }
        }
        else 
          this.options.hideEffectOptions.afterFinish = function() {destroyFunc() }
      }
      Windows.updateFocusedWindow();
      
      this.doNotNotifyHide = true;
      this.hide();
      this.doNotNotifyHide = false;
      this._notify("onClose");
    }
  },
  
  minimize: function() {
    if (this.resizing)
      return;
    
    var r2 = $(this.getId() + "_row2");
    
    if (!this.minimized) {
      this.minimized = true;

      var dh = r2.getDimensions().height;
      this.r2Height = dh;
      var h  = this.element.getHeight() - dh;

      if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow) {
        new Effect.ResizeWindow(this, null, null, null, this.height -dh, {duration: Window.resizeEffectDuration});
      } else  {
        this.height -= dh;
        this.element.setStyle({height: h + "px"});
        r2.hide();
      }

      if (! this.useTop) {
        var bottom = parseFloat(this.element.getStyle('bottom'));
        this.element.setStyle({bottom: (bottom + dh) + 'px'});
      }
    } 
    else {      
      this.minimized = false;
      
      var dh = this.r2Height;
      this.r2Height = null;
      if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow) {
        new Effect.ResizeWindow(this, null, null, null, this.height + dh, {duration: Window.resizeEffectDuration});
      }
      else {
        var h  = this.element.getHeight() + dh;
        this.height += dh;
        this.element.setStyle({height: h + "px"})
        r2.show();
      }
      if (! this.useTop) {
        var bottom = parseFloat(this.element.getStyle('bottom'));
        this.element.setStyle({bottom: (bottom - dh) + 'px'});
      }
      this.toFront();
    }
    this._notify("onMinimize");
    
    // Store new location/size if need be
    this._saveCookie()
  },
  
  maximize: function() {
    if (this.isMinimized() || this.resizing)
      return;
  
    if (Prototype.Browser.IE && this.heightN == 0)
      this._getWindowBorderSize();
      
    if (this.storedLocation != null) {
      this._restoreLocation();
      if(this.iefix) 
        this.iefix.hide();
    }
    else {
      this._storeLocation();
      Windows.unsetOverflow(this);
      
      var windowScroll = WindowUtilities.getWindowScroll(this.options.parent);
      var pageSize = WindowUtilities.getPageSize(this.options.parent);    
      var left = windowScroll.left;
      var top = windowScroll.top;
      
      if (this.options.parent != document.body) {
        windowScroll =  {top:0, left:0, bottom:0, right:0};
        var dim = this.options.parent.getDimensions();
        pageSize.windowWidth = dim.width;
        pageSize.windowHeight = dim.height;
        top = 0; 
        left = 0;
      }
      
      if (this.constraint) {
        pageSize.windowWidth -= Math.max(0, this.constraintPad.left) + Math.max(0, this.constraintPad.right);
        pageSize.windowHeight -= Math.max(0, this.constraintPad.top) + Math.max(0, this.constraintPad.bottom);
        left +=  Math.max(0, this.constraintPad.left);
        top +=  Math.max(0, this.constraintPad.top);
      }
      
      var width = pageSize.windowWidth - this.widthW - this.widthE;
      var height= pageSize.windowHeight - this.heightN - this.heightS;

      if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow) {
        new Effect.ResizeWindow(this, top, left, width, height, {duration: Window.resizeEffectDuration});
      }
      else {
        this.setSize(width, height);
        this.element.setStyle(this.useLeft ? {left: left} : {right: left});
        this.element.setStyle(this.useTop ? {top: top} : {bottom: top});
      }
        
      this.toFront();
      if (this.iefix) 
        this._fixIEOverlapping(); 
    }
    this._notify("onMaximize");

    // Store new location/size if need be
    this._saveCookie()
  },
  
  isMinimized: function() {
    return this.minimized;
  },
  
  isMaximized: function() {
    return (this.storedLocation != null);
  },
  
  setOpacity: function(opacity) {
    if (Element.setOpacity)
      Element.setOpacity(this.element, opacity);
  },
  
  setZIndex: function(zindex) {
    this.element.setStyle({zIndex: zindex});
    Windows.updateZindex(zindex, this);
  },

  setTitle: function(newTitle) {
    if (!newTitle || newTitle == "") 
      newTitle = "&nbsp;";
      
    Element.update(this.element.id + '_top', newTitle);
  },
   
  getTitle: function() {
    return $(this.element.id + '_top').innerHTML;
  },
  
  setStatusBar: function(element) {
    var statusBar = $(this.getId() + "_bottom");

    if (typeof(element) == "object") {
      if (this.bottombar.firstChild)
        this.bottombar.replaceChild(element, this.bottombar.firstChild);
      else
        this.bottombar.appendChild(element);
    }
    else
      this.bottombar.innerHTML = element;
  },

  _checkIEOverlapping: function() {
    if(!this.iefix && (navigator.appVersion.indexOf('MSIE')>0) && (navigator.userAgent.indexOf('Opera')<0) && (this.element.getStyle('position')=='absolute')) {
        new Insertion.After(this.element.id, '<iframe id="' + this.element.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.element.id+'_iefix');
    }
    if(this.iefix) 
      setTimeout(this._fixIEOverlapping.bind(this), 50);
  },

  _fixIEOverlapping: function() {
      Position.clone(this.element, this.iefix);
      this.iefix.style.zIndex = this.element.style.zIndex - 1;
      this.iefix.show();
  },
  
  _getWindowBorderSize: function(event) {
    // Hack to get real window border size!!
    var div = this._createHiddenDiv(this.options.className + "_n")
    this.heightN = Element.getDimensions(div).height;    
    div.parentNode.removeChild(div)

    var div = this._createHiddenDiv(this.options.className + "_s")
    this.heightS = Element.getDimensions(div).height;    
    div.parentNode.removeChild(div)

    var div = this._createHiddenDiv(this.options.className + "_e")
    this.widthE = Element.getDimensions(div).width;    
    div.parentNode.removeChild(div)

    var div = this._createHiddenDiv(this.options.className + "_w")
    this.widthW = Element.getDimensions(div).width;
    div.parentNode.removeChild(div);
    
    var div = document.createElement("div");
    div.className = "overlay_" + this.options.className ;
    document.body.appendChild(div);
    //alert("no timeout:\nopacity: " + div.getStyle("opacity") + "\nwidth: " + document.defaultView.getComputedStyle(div, null).width);
    var that = this;
    
    // Workaround for Safari!!
    setTimeout(function() {that.overlayOpacity = ($(div).getStyle("opacity")); div.parentNode.removeChild(div);}, 10);
    
    // Workaround for IE!!
    if (Prototype.Browser.IE) {
      this.heightS = $(this.getId() +"_row3").getDimensions().height;
      this.heightN = $(this.getId() +"_row1").getDimensions().height;
    }

    // Safari size fix
    if (Prototype.Browser.WebKit && Prototype.Browser.WebKitVersion < 420)
      this.setSize(this.width, this.height);
    if (this.doMaximize)
      this.maximize();
    if (this.doMinimize)
      this.minimize();
  },
 
  _createHiddenDiv: function(className) {
    var objBody = document.body;
    var win = document.createElement("div");
    win.setAttribute('id', this.element.id+ "_tmp");
    win.className = className;
    win.style.display = 'none';
    win.innerHTML = '';
    objBody.insertBefore(win, objBody.firstChild);
    return win;
  },
  
  _storeLocation: function() {
    if (this.storedLocation == null) {
      this.storedLocation = {useTop: this.useTop, useLeft: this.useLeft, 
                             top: this.element.getStyle('top'), bottom: this.element.getStyle('bottom'),
                             left: this.element.getStyle('left'), right: this.element.getStyle('right'),
                             width: this.width, height: this.height };
    }
  },
  
  _restoreLocation: function() {
    if (this.storedLocation != null) {
      this.useLeft = this.storedLocation.useLeft;
      this.useTop = this.storedLocation.useTop;
      
      if (this.useLeft && this.useTop && Window.hasEffectLib && Effect.ResizeWindow)
        new Effect.ResizeWindow(this, this.storedLocation.top, this.storedLocation.left, this.storedLocation.width, this.storedLocation.height, {duration: Window.resizeEffectDuration});
      else {
        this.element.setStyle(this.useLeft ? {left: this.storedLocation.left} : {right: this.storedLocation.right});
        this.element.setStyle(this.useTop ? {top: this.storedLocation.top} : {bottom: this.storedLocation.bottom});
        this.setSize(this.storedLocation.width, this.storedLocation.height);
      }
      
      Windows.resetOverflow();
      this._removeStoreLocation();
    }
  },
  
  _removeStoreLocation: function() {
    this.storedLocation = null;
  },
  
  _saveCookie: function() {
    if (this.cookie) {
      var value = "";
      if (this.useLeft)
        value += "l:" +  (this.storedLocation ? this.storedLocation.left : this.element.getStyle('left'))
      else
        value += "r:" + (this.storedLocation ? this.storedLocation.right : this.element.getStyle('right'))
      if (this.useTop)
        value += ",t:" + (this.storedLocation ? this.storedLocation.top : this.element.getStyle('top'))
      else
        value += ",b:" + (this.storedLocation ? this.storedLocation.bottom :this.element.getStyle('bottom'))
        
      value += "," + (this.storedLocation ? this.storedLocation.width : this.width);
      value += "," + (this.storedLocation ? this.storedLocation.height : this.height);
      value += "," + this.isMinimized();
      value += "," + this.isMaximized();
      WindowUtilities.setCookie(value, this.cookie)
    }
  },
  
  _createWiredElement: function() {
    if (! this.wiredElement) {
      if (Prototype.Browser.IE)
        this._getWindowBorderSize();
      var div = document.createElement("div");
      div.className = "wired_frame " + this.options.className + "_wired_frame";
      
      div.style.position = 'absolute';
      this.options.parent.insertBefore(div, this.options.parent.firstChild);
      this.wiredElement = $(div);
    }
    if (this.useLeft) 
      this.wiredElement.setStyle({left: this.element.getStyle('left')});
    else 
      this.wiredElement.setStyle({right: this.element.getStyle('right')});
      
    if (this.useTop) 
      this.wiredElement.setStyle({top: this.element.getStyle('top')});
    else 
      this.wiredElement.setStyle({bottom: this.element.getStyle('bottom')});

    var dim = this.element.getDimensions();
    this.wiredElement.setStyle({width: dim.width + "px", height: dim.height +"px"});

    this.wiredElement.setStyle({zIndex: Windows.maxZIndex+30});
    return this.wiredElement;
  },
  
  _hideWiredElement: function() {
    if (! this.wiredElement || ! this.currentDrag)
      return;
    if (this.currentDrag == this.element) 
      this.currentDrag = null;
    else {
      if (this.useLeft) 
        this.element.setStyle({left: this.currentDrag.getStyle('left')});
      else 
        this.element.setStyle({right: this.currentDrag.getStyle('right')});

      if (this.useTop) 
        this.element.setStyle({top: this.currentDrag.getStyle('top')});
      else 
        this.element.setStyle({bottom: this.currentDrag.getStyle('bottom')});

      this.currentDrag.hide();
      this.currentDrag = null;
      if (this.doResize)
        this.setSize(this.width, this.height);
    } 
  },
  
  _notify: function(eventName) {
    if (this.options[eventName])
      this.options[eventName](this);
    else
      Windows.notify(eventName, this);
  }
};

// Windows containers, register all page windows
var Windows = {
  windows: [],
  modalWindows: [],
  observers: [],
  focusedWindow: null,
  maxZIndex: 0,
  overlayShowEffectOptions: {duration: 0.5},
  overlayHideEffectOptions: {duration: 0.5},

  addObserver: function(observer) {
    this.removeObserver(observer);
    this.observers.push(observer);
  },
  
  removeObserver: function(observer) {  
    this.observers = this.observers.reject( function(o) { return o==observer });
  },
  
  // onDestroy onStartResize onStartMove onResize onMove onEndResize onEndMove onFocus onBlur onBeforeShow onShow onHide onMinimize onMaximize onClose
  notify: function(eventName, win) {  
    this.observers.each( function(o) {if(o[eventName]) o[eventName](eventName, win);});
  },

  // Gets window from its id
  getWindow: function(id) {
    return this.windows.detect(function(d) { return d.getId() ==id });
  },

  // Gets the last focused window
  getFocusedWindow: function() {
    return this.focusedWindow;
  },

  updateFocusedWindow: function() {
    this.focusedWindow = this.windows.length >=2 ? this.windows[this.windows.length-2] : null;    
  },
  
  // Registers a new window (called by Windows constructor)
  register: function(win) {
    this.windows.push(win);
  },
    
  // Add a modal window in the stack
  addModalWindow: function(win) {
    // Disable screen if first modal window
    if (this.modalWindows.length == 0) {
      WindowUtilities.disableScreen(win.options.className, 'overlay_modal', win.overlayOpacity, win.getId(), win.options.parent);
    }
    else {
      // Move overlay over all windows
      if (Window.keepMultiModalWindow) {
        $('overlay_modal').style.zIndex = Windows.maxZIndex + 1;
        Windows.maxZIndex += 1;
        WindowUtilities._hideSelect(this.modalWindows.last().getId());
      }
      // Hide current modal window
      else
        this.modalWindows.last().element.hide();
      // Fucking IE select issue
      WindowUtilities._showSelect(win.getId());
    }      
    this.modalWindows.push(win);    
  },
  
  removeModalWindow: function(win) {
    this.modalWindows.pop();
    
    // No more modal windows
    if (this.modalWindows.length == 0)
      WindowUtilities.enableScreen();     
    else {
      if (Window.keepMultiModalWindow) {
        this.modalWindows.last().toFront();
        WindowUtilities._showSelect(this.modalWindows.last().getId());        
      }
      else
        this.modalWindows.last().element.show();
    }
  },
  
  // Registers a new window (called by Windows constructor)
  register: function(win) {
    this.windows.push(win);
  },
  
  // Unregisters a window (called by Windows destructor)
  unregister: function(win) {
    this.windows = this.windows.reject(function(d) { return d==win });
  }, 
  
  // Closes all windows
  closeAll: function() {  
    this.windows.each( function(w) {Windows.close(w.getId())} );
  },
  
  closeAllModalWindows: function() {
    WindowUtilities.enableScreen();     
    this.modalWindows.each( function(win) {if (win) win.close()});    
  },

  // Minimizes a window with its id
  minimize: function(id, event) {
    var win = this.getWindow(id)
    if (win && win.visible)
      win.minimize();
    Event.stop(event);
  },
  
  // Maximizes a window with its id
  maximize: function(id, event) {
    var win = this.getWindow(id)
    if (win && win.visible)
      win.maximize();
    Event.stop(event);
  },

  // Closes a window with its id
  close: function(id, event) {
    var win = this.getWindow(id);
    if (win) 
      win.close();
    if (event)
      Event.stop(event);
  },
  
  blur: function(id) {
    var win = this.getWindow(id);  
    if (!win)
      return;
    if (win.options.blurClassName)
      win.changeClassName(win.options.blurClassName);
    if (this.focusedWindow == win)  
      this.focusedWindow = null;
    win._notify("onBlur");  
  },
  
  focus: function(id) {
    var win = this.getWindow(id);  
    if (!win)
      return;       
    if (this.focusedWindow)
      this.blur(this.focusedWindow.getId())

    if (win.options.focusClassName)
      win.changeClassName(win.options.focusClassName);  
    this.focusedWindow = win;
    win._notify("onFocus");
  },
  
  unsetOverflow: function(except) {    
    this.windows.each(function(d) { d.oldOverflow = d.getContent().getStyle("overflow") || "auto" ; d.getContent().setStyle({overflow: "hidden"}) });
    if (except && except.oldOverflow)
      except.getContent().setStyle({overflow: except.oldOverflow});
  },

  resetOverflow: function() {
    this.windows.each(function(d) { if (d.oldOverflow) d.getContent().setStyle({overflow: d.oldOverflow}) });
  },

  updateZindex: function(zindex, win) { 
    if (zindex > this.maxZIndex) {   
      this.maxZIndex = zindex;    
      if (this.focusedWindow) 
        this.blur(this.focusedWindow.getId())
    }
    this.focusedWindow = win;
    if (this.focusedWindow) 
      this.focus(this.focusedWindow.getId())
  }
};

var Dialog = {
  dialogId: null,
  onCompleteFunc: null,
  callFunc: null, 
  parameters: null, 
    
  confirm: function(content, parameters) {
    // Get Ajax return before
    if (content && typeof content != "string") {
      Dialog._runAjaxRequest(content, parameters, Dialog.confirm);
      return 
    }
    content = content || "";
    
    parameters = parameters || {};
    var okLabel = parameters.okLabel ? parameters.okLabel : "Ok";
    var cancelLabel = parameters.cancelLabel ? parameters.cancelLabel : "Cancel";

    // Backward compatibility
    parameters = Object.extend(parameters, parameters.windowParameters || {});
    parameters.windowParameters = parameters.windowParameters || {};

    parameters.className = parameters.className || "alert";

    var okButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " ok_button'" 
    var cancelButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " cancel_button'" 
    var content = "\
      <div class='" + parameters.className + "_message'>" + content  + "</div>\
        <div class='" + parameters.className + "_buttons'>\
          <input type='button' value='" + okLabel + "' onclick='Dialog.okCallback()' " + okButtonClass + "/>\
          <input type='button' value='" + cancelLabel + "' onclick='Dialog.cancelCallback()' " + cancelButtonClass + "/>\
        </div>\
    ";
    return this._openDialog(content, parameters)
  },
  
  alert: function(content, parameters) {
    // Get Ajax return before
    if (content && typeof content != "string") {
      Dialog._runAjaxRequest(content, parameters, Dialog.alert);
      return 
    }
    content = content || "";
    
    parameters = parameters || {};
    var okLabel = parameters.okLabel ? parameters.okLabel : "Ok";

    // Backward compatibility    
    parameters = Object.extend(parameters, parameters.windowParameters || {});
    parameters.windowParameters = parameters.windowParameters || {};
    
    parameters.className = parameters.className || "alert";
    
    var okButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " ok_button'" 
    var content = "\
      <div class='" + parameters.className + "_message'>" + content  + "</div>\
        <div class='" + parameters.className + "_buttons'>\
          <input type='button' value='" + okLabel + "' onclick='Dialog.okCallback()' " + okButtonClass + "/>\
        </div>";                  
    return this._openDialog(content, parameters)
  },
  
  info: function(content, parameters) {   
    // Get Ajax return before
    if (content && typeof content != "string") {
      Dialog._runAjaxRequest(content, parameters, Dialog.info);
      return 
    }
    content = content || "";
     
    // Backward compatibility
    parameters = parameters || {};
    parameters = Object.extend(parameters, parameters.windowParameters || {});
    parameters.windowParameters = parameters.windowParameters || {};
    
    parameters.className = parameters.className || "alert";
    
    var content = "<div id='modal_dialog_message' class='" + parameters.className + "_message'>" + content  + "</div>";
    if (parameters.showProgress)
      content += "<div id='modal_dialog_progress' class='" + parameters.className + "_progress'>  </div>";

    parameters.ok = null;
    parameters.cancel = null;
    
    return this._openDialog(content, parameters)
  },
  
  setInfoMessage: function(message) {
    $('modal_dialog_message').update(message);
  },
  
  closeInfo: function() {
    Windows.close(this.dialogId);
  },
  
  _openDialog: function(content, parameters) {
    var className = parameters.className;
    
    if (! parameters.height && ! parameters.width) {
      parameters.width = WindowUtilities.getPageSize(parameters.options.parent || document.body).pageWidth / 2;
    }
    if (parameters.id)
      this.dialogId = parameters.id;
    else { 
      var t = new Date();
      this.dialogId = 'modal_dialog_' + t.getTime();
      parameters.id = this.dialogId;
    }

    // compute height or width if need be
    if (! parameters.height || ! parameters.width) {
      var size = WindowUtilities._computeSize(content, this.dialogId, parameters.width, parameters.height, 5, className)
      if (parameters.height)
        parameters.width = size + 5
      else
        parameters.height = size + 5
    }
    parameters.effectOptions = parameters.effectOptions ;
    parameters.resizable   = parameters.resizable || false;
    parameters.minimizable = parameters.minimizable || false;
    parameters.maximizable = parameters.maximizable ||  false;
    parameters.draggable   = parameters.draggable || false;
    parameters.closable    = parameters.closable || false;
    
    var win = new Window(parameters);
    win.getContent().innerHTML = content;
    
    win.showCenter(true, parameters.top, parameters.left);  
    win.setDestroyOnClose();
    
    win.cancelCallback = parameters.onCancel || parameters.cancel; 
    win.okCallback = parameters.onOk || parameters.ok;
    
    return win;    
  },
  
  _getAjaxContent: function(originalRequest)  {
      Dialog.callFunc(originalRequest.responseText, Dialog.parameters)
  },
  
  _runAjaxRequest: function(message, parameters, callFunc) {
    if (message.options == null)
      message.options = {}  
    Dialog.onCompleteFunc = message.options.onComplete;
    Dialog.parameters = parameters;
    Dialog.callFunc = callFunc;
    
    message.options.onComplete = Dialog._getAjaxContent;
    new Ajax.Request(message.url, message.options);
  },
  
  okCallback: function() {
    var win = Windows.focusedWindow;
    if (!win.okCallback || win.okCallback(win)) {
      // Remove onclick on button
      $$("#" + win.getId()+" input").each(function(element) {element.onclick=null;})
      win.close();
    }
  },

  cancelCallback: function() {
    var win = Windows.focusedWindow;
    // Remove onclick on button
    $$("#" + win.getId()+" input").each(function(element) {element.onclick=null})
    win.close();
    if (win.cancelCallback)
      win.cancelCallback(win);
  }
}
/*
  Based on Lightbox JS: Fullsize Image Overlays 
  by Lokesh Dhakar - http://www.huddletogether.com

  For more information on this script, visit:
  http://huddletogether.com/projects/lightbox/

  Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
  (basically, do anything you want, just leave my name and link)
*/

if (Prototype.Browser.WebKit) {
  var array = navigator.userAgent.match(new RegExp(/AppleWebKit\/([\d\.\+]*)/));
  Prototype.Browser.WebKitVersion = parseFloat(array[1]);
}

var WindowUtilities = {  
  // From dragdrop.js
  getWindowScroll: function(parent) {
    var T, L, W, H;
    parent = parent || document.body;              
    if (parent != document.body) {
      T = parent.scrollTop;
      L = parent.scrollLeft;
      W = parent.scrollWidth;
      H = parent.scrollHeight;
    } 
    else {
      var w = window;
      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 };
  }, 
  //
  // getPageSize()
  // Returns array with page width, height and window width, height
  // Core code from - quirksmode.org
  // Edit for Firefox by pHaez
  //
  getPageSize: function(parent){
    parent = parent || document.body;              
    var windowWidth, windowHeight;
    var pageHeight, pageWidth;
    if (parent != document.body) {
      windowWidth = parent.getWidth();
      windowHeight = parent.getHeight();                                
      pageWidth = parent.scrollWidth;
      pageHeight = parent.scrollHeight;                                
    } 
    else {
      var xScroll, yScroll;

      if (window.innerHeight && window.scrollMaxY) {  
        xScroll = document.body.scrollWidth;
        yScroll = window.innerHeight + window.scrollMaxY;
      } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
        xScroll = document.body.scrollWidth;
        yScroll = document.body.scrollHeight;
      } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
        xScroll = document.body.offsetWidth;
        yScroll = document.body.offsetHeight;
      }


      if (self.innerHeight) {  // all except Explorer
        windowWidth = self.innerWidth;
        windowHeight = self.innerHeight;
      } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
        windowWidth = document.documentElement.clientWidth;
        windowHeight = document.documentElement.clientHeight;
      } else if (document.body) { // other Explorers
        windowWidth = document.body.clientWidth;
        windowHeight = document.body.clientHeight;
      }  

      // for small pages with total height less then height of the viewport
      if(yScroll < windowHeight){
        pageHeight = windowHeight;
      } else { 
        pageHeight = yScroll;
      }

      // for small pages with total width less then width of the viewport
      if(xScroll < windowWidth){  
        pageWidth = windowWidth;
      } else {
        pageWidth = xScroll;
      }
    }             
    return {pageWidth: pageWidth ,pageHeight: pageHeight , windowWidth: windowWidth, windowHeight: windowHeight};
  },

  disableScreen: function(className, overlayId, overlayOpacity, contentId, parent) {
    WindowUtilities.initLightbox(overlayId, className, function() {this._disableScreen(className, overlayId, overlayOpacity, contentId)}.bind(this), parent || document.body);
  },

  _disableScreen: function(className, overlayId, overlayOpacity, contentId) {
    // prep objects
    var objOverlay = $(overlayId);

    var pageSize = WindowUtilities.getPageSize(objOverlay.parentNode);

    // Hide select boxes as they will 'peek' through the image in IE, store old value
    if (contentId && Prototype.Browser.IE) {
      WindowUtilities._hideSelect();
      WindowUtilities._showSelect(contentId);
    }  
  
    // set height of Overlay to take up whole page and show
    objOverlay.style.height = (pageSize.pageHeight + 'px');
    objOverlay.style.display = 'none'; 
    if (overlayId == "overlay_modal" && Window.hasEffectLib && Windows.overlayShowEffectOptions) {
      objOverlay.overlayOpacity = overlayOpacity;
      new Effect.Appear(objOverlay, Object.extend({from: 0, to: overlayOpacity}, Windows.overlayShowEffectOptions));
    }
    else
      objOverlay.style.display = "block";
  },
  
  enableScreen: function(id) {
    id = id || 'overlay_modal';
    var objOverlay =  $(id);
    if (objOverlay) {
      // hide lightbox and overlay
      if (id == "overlay_modal" && Window.hasEffectLib && Windows.overlayHideEffectOptions)
        new Effect.Fade(objOverlay, Object.extend({from: objOverlay.overlayOpacity, to:0}, Windows.overlayHideEffectOptions));
      else {
        objOverlay.style.display = 'none';
        objOverlay.parentNode.removeChild(objOverlay);
      }
      
      // make select boxes visible using old value
      if (id != "__invisible__") 
        WindowUtilities._showSelect();
    }
  },

  _hideSelect: function(id) {
    if (Prototype.Browser.IE) {
      id = id ==  null ? "" : "#" + id + " ";
      $$(id + 'select').each(function(element) {
        if (! WindowUtilities.isDefined(element.oldVisibility)) {
          element.oldVisibility = element.style.visibility ? element.style.visibility : "visible";
          element.style.visibility = "hidden";
        }
      });
    }
  },
  
  _showSelect: function(id) {
    if (Prototype.Browser.IE) {
      id = id ==  null ? "" : "#" + id + " ";
      $$(id + 'select').each(function(element) {
        if (WindowUtilities.isDefined(element.oldVisibility)) {
          // Why?? Ask IE
          try {
            element.style.visibility = element.oldVisibility;
          } catch(e) {
            element.style.visibility = "visible";
          }
          element.oldVisibility = null;
        }
        else {
          if (element.style.visibility)
            element.style.visibility = "visible";
        }
      });
    }
  },

  isDefined: function(object) {
    return typeof(object) != "undefined" && object != null;
  },
  
  // initLightbox()
  // Function runs on window load, going through link tags looking for rel="lightbox".
  // These links receive onclick events that enable the lightbox display for their targets.
  // The function also inserts html markup at the top of the page which will be used as a
  // container for the overlay pattern and the inline image.
  initLightbox: function(id, className, doneHandler, parent) {
    // Already done, just update zIndex
    if ($(id)) {
      Element.setStyle(id, {zIndex: Windows.maxZIndex + 1});
      Windows.maxZIndex++;
      doneHandler();
    }
    // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
    else {
      var objOverlay = document.createElement("div");
      objOverlay.setAttribute('id', id);
      objOverlay.className = "overlay_" + className
      objOverlay.style.display = 'none';
      objOverlay.style.position = 'absolute';
      objOverlay.style.top = '0';
      objOverlay.style.left = '0';
      objOverlay.style.zIndex = Windows.maxZIndex + 1;
      Windows.maxZIndex++;
      objOverlay.style.width = '100%';
      parent.insertBefore(objOverlay, parent.firstChild);
      if (Prototype.Browser.WebKit && id == "overlay_modal") {
        setTimeout(function() {doneHandler()}, 10);
      }
      else
        doneHandler();
    }    
  },
  
  setCookie: function(value, parameters) {
    document.cookie= parameters[0] + "=" + escape(value) +
      ((parameters[1]) ? "; expires=" + parameters[1].toGMTString() : "") +
      ((parameters[2]) ? "; path=" + parameters[2] : "") +
      ((parameters[3]) ? "; domain=" + parameters[3] : "") +
      ((parameters[4]) ? "; secure" : "");
  },

  getCookie: function(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
      begin = dc.indexOf(prefix);
      if (begin != 0) return null;
    } else {
      begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
      end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
  },
    
  _computeSize: function(content, id, width, height, margin, className) {
    var objBody = document.body;
    var tmpObj = document.createElement("div");
    tmpObj.setAttribute('id', id);
    tmpObj.className = className + "_content";

    if (height)
      tmpObj.style.height = height + "px"
    else
      tmpObj.style.width = width + "px"
  
    tmpObj.style.position = 'absolute';
    tmpObj.style.top = '0';
    tmpObj.style.left = '0';
    tmpObj.style.display = 'none';

    tmpObj.innerHTML = content;
    objBody.insertBefore(tmpObj, objBody.firstChild);

    var size;
    if (height)
      size = $(tmpObj).getDimensions().width + margin;
    else
      size = $(tmpObj).getDimensions().height + margin;
    objBody.removeChild(tmpObj);
    return size;
  }  
}




var div = document.createElement('div');
document.body.appendChild(div);
div.innerHTML = '<iframe id="qvformtarget" style="display:none;height:0px;height:0px" name="qvformtarget"></iframe>';

var qvaform=document.getElementById("qvnnlsfrm");
qvaform.action="http://www.quvion-nls.de/b68/subscribe.php";
qvaform.target="qvformtarget";

   qvaform.onsubmit = function (evt) { 
      	var eml=document.getElementById("qvemail").value;
      	if (!((eml.indexOf(".") > 0) && (eml.indexOf("@") > 0))) {
      		Dialog.alert("<table border='0'><tr><td>&nbsp;</td><td class='alphacube_message'><br>Bitte geben Sie eine g&uuml;ltige E-Mail Adresse ein. Eine Anmeldung f&uuml;r unseren kostenfreien touriDat-Newsletter ist sonst nicht m&ouml;glich.</td><td>&nbsp;</td></tr></table>", 
              {className: "alphacube",width:450, height:150, okLabel: "Schlie&szlig;en", 
              ok:function(win) { document.getElementById("qvemail").focus(); return true;}});
      		return false;
	} else {
		Dialog.alert("<table border='0'><tr><td>&nbsp;</td><td class='alphacube_message'><br>Ihre Anmeldung f&uuml;r den touriDat-Newsletter wurde erfolgreich durchgef&uuml;hrt. Sie erhalten in K&uuml;rze eine E-Mail. Bitte klicken Sie dort auf den Best&auml;tigungslink, damit wir sicher sein k&ouml;nnen, dass die Anmeldung f&uuml;r unseren kostenfreien touriDat-Newsletter wirklich von Ihnen stammt.</td><td>&nbsp;</td></tr></table>", 
             {className: "alphacube",width:450, height:150, okLabel: "Schlie&szlig;en", 
              ok:function(win) { 
		document.getElementById("qvemail").value="";
		return true;}});

		return true;
	}
   }