/********************************************************************
******* prototype.js
********************************************************************/

var Prototype = {
  Version: '1.6.0.2',

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

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

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

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

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


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

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

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

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

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

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

    klass.prototype.constructor = klass;

    return klass;
  }
};

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

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

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

    return this;
  }
};

var Abstract = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return returnValue;
  }
};

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

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

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

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

    this.registerCallback();
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return camelized;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

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

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

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

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

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

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

    this.parameters = params;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

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

  getHeader: Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

    $super(url, options);
  },

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

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

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

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

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

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

    this.start();
  },

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

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

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

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

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

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

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

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

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

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

Element.cache = { };

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

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

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

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

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

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

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

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

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

    var content, insert, tagName, childNodes;

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

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

      content = Object.toHTML(content);

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

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

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

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

    return element;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return element;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return $(document.body);
  },

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

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

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

    } while (element = element.offsetParent);

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

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

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

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

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

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

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

Element.Methods.identify.counter = 1;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  Element._attributeTranslations.has = {};

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

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

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

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

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

    return element;
  };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

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

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

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

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

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

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

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

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    var e = this.expression;

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

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

    return true;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return match;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return matchingInputs;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  cache: { },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      return element;
    },

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

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

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

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

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

      destroyWrapper(id, eventName, handler);

      return element;
    },

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

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

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

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

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

Object.extend(Event, Event.Methods);

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

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

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

  var timer;

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

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

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

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

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

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

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

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

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.addMethods();


/********************************************************************
******* utils.js
********************************************************************/

/****************************************
/*******  Утилитарные функции ***********
/***************************************/

/****************************************
/*******     константы        ***********
/***************************************/
var CLRS_RED   = '#FF4A13';
var CLRS_GREEN = '#68CA99';
var CLRS_BLUE  = '#3682C0';
var CLRS_LILAC = '#5A5D70';

var CLRS_RED_LIGHT   = '#FFD9CE';
var CLRS_GREEN_LIGHT = '#D9F2E6';
var CLRS_BLUE_LIGHT  = '#D7E6F2';
var CLRS_LILAC_LIGHT = '#CECFD9';


//light 
/***************************************
/*******  определяем броузер  **********
/***************************************/
var BrowserDetect = {
  init: function () {
    this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
    this.version = this.searchVersion(navigator.userAgent)
      || this.searchVersion(navigator.appVersion)
      || "an unknown version";
    this.OS = this.searchString(this.dataOS) || "an unknown OS";
  },
  searchString: function (data) {
    for (var i=0;i<data.length;i++)  {
      var dataString = data[i].string;
      var dataProp = data[i].prop;
      this.versionSearchString = data[i].versionSearch || data[i].identity;
      if (dataString) {
        if (dataString.indexOf(data[i].subString) != -1)
          return data[i].identity;
      }
      else if (dataProp)
        return data[i].identity;
    }
  },
  searchVersion: function (dataString) {
    var index = dataString.indexOf(this.versionSearchString);
    if (index == -1) return;
    return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
  },
  dataBrowser: [
    { 
      string: navigator.userAgent,
      subString: "OmniWeb",
      versionSearch: "OmniWeb/",
      identity: "OmniWeb"
    },
    {
      string: navigator.vendor,
      subString: "Apple",
      identity: "Safari"
    },
    {
      prop: window.opera,
      identity: "Opera"
    },
    {
      string: navigator.vendor,
      subString: "iCab",
      identity: "iCab"
    },
    {
      string: navigator.vendor,
      subString: "KDE",
      identity: "Konqueror"
    },
    {
      string: navigator.userAgent,
      subString: "Firefox",
      identity: "Firefox"
    },
    {
      string: navigator.vendor,
      subString: "Camino",
      identity: "Camino"
    },
    {    // for newer Netscapes (6+)
      string: navigator.userAgent,
      subString: "Netscape",
      identity: "Netscape"
    },
    {
      string: navigator.userAgent,
      subString: "MSIE",
      identity: "Explorer",
      versionSearch: "MSIE"
    },
    {
      string: navigator.userAgent,
      subString: "Gecko",
      identity: "Mozilla",
      versionSearch: "rv"
    },
    {     // for older Netscapes (4-)
      string: navigator.userAgent,
      subString: "Mozilla",
      identity: "Netscape",
      versionSearch: "Mozilla"
    }
  ],
  dataOS : [
    {
      string: navigator.platform,
      subString: "Win",
      identity: "Windows"
    },
    {
      string: navigator.platform,
      subString: "Mac",
      identity: "Mac"
    },
    {
      string: navigator.platform,
      subString: "Linux",
      identity: "Linux"
    }
  ]

};

BrowserDetect.init();

function needPNGHack() {
  var pos = navigator.userAgent.indexOf("MSIE ");

  if (pos == -1)
    return false;

  var version = navigator.userAgent.substring(pos + 5);

  return (((version.indexOf("5.5") == 0) || (version.indexOf("6") == 0)) && (navigator.platform == ("Win32")));
}


function writeLog(val) {
  var log = $('log');

  log.innerHTML += val;
}

/*
CSS redefining
*/
function getCSSRule(ruleName, deleteFlag) {               // Return requested style obejct
   ruleName=ruleName.toLowerCase();                       // Convert test string to lower case.
   if (document.styleSheets) {                            // If browser can play with stylesheets
      for (var i=0; i<document.styleSheets.length; i++) { // For each stylesheet
         var styleSheet=document.styleSheets[i];          // Get the current Stylesheet
         var ii=0;                                        // Initialize subCounter.
         var cssRule=false;                               // Initialize cssRule. 
         do {                                             // For each rule in stylesheet
            if (styleSheet.cssRules) {                    // Browser uses cssRules?
               cssRule = styleSheet.cssRules[ii];         // Yes --Mozilla Style
            } else {                                      // Browser usses rules?
               cssRule = styleSheet.rules[ii];            // Yes IE style. 
            }                                             // End IE check.
            if (cssRule)  {                               // If we found a rule...
               if (cssRule.selectorText.toLowerCase()==ruleName) { //  match ruleName?
                  if (deleteFlag=='delete') {             // Yes.  Are we deleteing?
                     if (styleSheet.cssRules) {           // Yes, deleting...
                        styleSheet.deleteRule(ii);        // Delete rule, Moz Style
                     } else {                             // Still deleting.
                        styleSheet.removeRule(ii);        // Delete rule IE style.
                     }                                    // End IE check.
                     return true;                         // return true, class deleted.
                  } else {                                // found and not deleting.
                     return cssRule;                      // return the style object.
                  }                                       // End delete Check
               }                                          // End found rule name
            }                                             // end found cssRule
            ii++;                                         // Increment sub-counter
         } while (cssRule)                                // end While loop
      }                                                   // end For loop
   }                                                      // end styleSheet ability check
   return false;                                          // we found NOTHING!
}                                                         // end getCSSRule 

function killCSSRule(ruleName) {                          // Delete a CSS rule   
   return getCSSRule(ruleName,'delete');                  // just call getCSSRule w/delete flag.
}                                                         // end killCSSRule

function addCSSRule(ruleName) {                           // Create a new css rule
   if (document.styleSheets) {                            // Can browser do styleSheets?
      if (!getCSSRule(ruleName)) {                        // if rule doesn't exist...
         if (document.styleSheets[0].addRule) {           // Browser is IE?
            document.styleSheets[0].addRule(ruleName, null,0);      // Yes, add IE style
         } else {                                         // Browser is IE?
            document.styleSheets[0].insertRule(ruleName+' { }', 0); // Yes, add Moz style.
         }                                                // End browser check
      }                                                   // End already exist check.
   }                                                      // End browser ability check.
   return getCSSRule(ruleName);                           // return rule we just created.
} 

// устанавливаем цветовую схему
function setColorSet(rulename, color, newimageid){
  var rule = getCSSRule(rulename);
  
  if(typeof color == 'undefined') {
    var clrbg = getCookie('METEOPROG_CLRSBG');
    color = (clrbg == null) ? CLRS_RED : clrbg;
  } else
    setCookie('METEOPROG_CLRSBG', color);

  if(typeof newimageid == 'undefined') {
    newimageid = getCookie('METEOPROG_CLRSIMG_ID');
    newimageid = (newimageid == null) ? 'clrsbg_img1' : newimageid;
  } else
    setCookie('METEOPROG_CLRSIMG_ID', newimageid);
  
  rule.style.backgroundColor = color;
	
  var kroshkirule = getCSSRule('.kroshki_act');
  kroshkirule.style.color = color;

  var clrstxtrule = getCSSRule('.clrstxt');
  clrstxtrule.style.color = color;

  var clrsbgrule = getCSSRule('.clrsbg');
  clrsbgrule.style.backgroundColor = color;

  var clrsbgrule = getCSSRule('.clrsbrdr');
  clrsbgrule.style.borderColor = color;

  
  var draghandlerule = getCSSRule('.drag-handle');
  draghandlerule.style.backgroundColor = color;
  
  changeColorsetImages(newimageid);

}

function setClassBgColor(rulename, color){
  var rule = getCSSRule(rulename);
  rule.style.backgroundColor = color;
}

function setClassBorderColor(rulename, color){
  var rule = getCSSRule(rulename);
  rule.style.borderColor = color;
}

function changeColorsetImages(newimageid){
  if(typeof newimageid == 'undefined') {
    newimageid = getCookie('METEOPROG_CLRSIMG_ID');
    newimageid = (newimageid == null) ? 'clrsbg_img1' : newimageid;
  } else
    setCookie('METEOPROG_CLRSIMG_ID', newimageid);
    
    if($('clrsbg_img1') && $('clrsbg_img1').src) {
    switch(newimageid) {
      case 'clrsbg_img1': newimagename = '/images/color_1_act.gif';
        $('clrsbg_img2').src = '/images/color_2.gif';
        $('clrsbg_img3').src = '/images/color_3.gif';
        $('clrsbg_img4').src = '/images/color_4.gif';
        setClassBgColor('ul.list li.selected', CLRS_RED_LIGHT);
        setClassBgColor('.calday-act table',CLRS_RED);
        setClassBorderColor('.calday-cur',CLRS_RED);
        setClassBgColor('.block-hdr-over',CLRS_RED_LIGHT);
        setClassBgColor('.ajaxtab-act table',CLRS_RED);
        setClassBgColor('.clrsltbg', CLRS_RED_LIGHT);
        setClassBorderColor('.clrsltbrdr', CLRS_RED_LIGHT);
        
        CUR_CLRS_BG = CLRS_RED;
        CUR_CLRS_BG_LT = CLRS_RED_LIGHT;
        CUR_CLRS_BRDR = CLRS_RED;
        CUR_CLRS_BRDR_LT = CLRS_RED_LIGHT;
        
        break;
      case 'clrsbg_img2': newimagename = '/images/color_2_act.gif';
        $('clrsbg_img1').src = '/images/color_1.gif';
        $('clrsbg_img3').src = '/images/color_3.gif';
        $('clrsbg_img4').src = '/images/color_4.gif';
        setClassBgColor('ul.list li.selected', CLRS_GREEN_LIGHT);
        setClassBgColor('.calday-act table',CLRS_GREEN);
        setClassBorderColor('.calday-cur',CLRS_GREEN);
        setClassBgColor('.block-hdr-over',CLRS_GREEN_LIGHT);
        setClassBgColor('.ajaxtab-act table',CLRS_GREEN);
        setClassBgColor('.clrsltbg', CLRS_GREEN_LIGHT);
        setClassBorderColor('.clrsltbrdr', CLRS_GREEN_LIGHT);
        
        CUR_CLRS_BG = CLRS_GREEN;
        CUR_CLRS_BG_LT = CLRS_GREEN_LIGHT;
        CUR_CLRS_BRDR = CLRS_GREEN;
        CUR_CLRS_BRDR_LT = CLRS_GREEN_LIGHT;

        break;
      case 'clrsbg_img3': newimagename = '/images/color_3_act.gif';
        $('clrsbg_img1').src = '/images/color_1.gif';
        $('clrsbg_img2').src = '/images/color_2.gif';
        $('clrsbg_img4').src = '/images/color_4.gif';
        setClassBgColor('ul.list li.selected', CLRS_BLUE_LIGHT);
        setClassBgColor('.calday-act table',CLRS_BLUE);
        setClassBorderColor('.calday-cur',CLRS_BLUE);
        setClassBgColor('.block-hdr-over',CLRS_BLUE_LIGHT);
        setClassBgColor('.ajaxtab-act table',CLRS_BLUE);
        setClassBgColor('.clrsltbg', CLRS_BLUE_LIGHT);
        setClassBorderColor('.clrsltbrdr', CLRS_BLUE_LIGHT);
        
        CUR_CLRS_BG = CLRS_BLUE;
        CUR_CLRS_BG_LT = CLRS_BLUE_LIGHT;
        CUR_CLRS_BRDR = CLRS_BLUE;
        CUR_CLRS_BRDR_LT = CLRS_BLUE_LIGHT;

        break;
      case 'clrsbg_img4': newimagename = '/images/color_4_act.gif';
        $('clrsbg_img1').src = '/images/color_1.gif';
        $('clrsbg_img2').src = '/images/color_2.gif';
        $('clrsbg_img3').src = '/images/color_3.gif';
        setClassBgColor('ul.list li.selected', CLRS_LILAC_LIGHT);
        setClassBgColor('.calday-act table',CLRS_LILAC);
        setClassBorderColor('.calday-cur',CLRS_LILAC);
        setClassBgColor('.block-hdr-over',CLRS_LILAC_LIGHT);
        setClassBgColor('.ajaxtab-act table',CLRS_LILAC);
        setClassBgColor('.clrsltbg', CLRS_LILAC_LIGHT);
        setClassBorderColor('.clrsltbrdr', CLRS_LILAC_LIGHT);
        
        CUR_CLRS_BG = CLRS_LILAC;
        CUR_CLRS_BG_LT = CLRS_LILAC_LIGHT;
        CUR_CLRS_BRDR = CLRS_LILAC;
        CUR_CLRS_BRDR_LT = CLRS_LILAC_LIGHT;

        break;
    }
    $(newimageid).src = newimagename;
  }
  
  return;
}

function setOpacity(obj, opacity) { 

  if(typeof obj != 'object')
    obj = document.getElementById(obj);
  
  opacity = (opacity == 100)?99.999:opacity; 
  
  switch(BrowserDetect.browser) {
    case 'Konqueror': 
      // Safari<1.2, Konqueror 
      obj.style.KHTMLOpacity = opacity/100; 
      break;
    case 'Firefox': 
      // Safari 1.2, newer Firefox and Mozilla, CSS3 
      obj.style.opacity = opacity/100; 
      break;
    case 'Firefox': 
      // Older Mozilla and Firefox 
      obj.style.MozOpacity = opacity/100; 
      break;
    case 'Explorer': 
      // IE/Win
      //status += ',1';
      obj.style.filter = "alpha(opacity:"+opacity+")"; 
      //obj.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=0);';
  }
}

/***************************************
/*******  работаем с куки  *************
/***************************************/
function testCookie() {

  var cookieEnabled=(navigator.cookieEnabled)? true : false

  //if not IE4+ nor NS6+
  if (typeof navigator.cookieEnabled=="undefined" && !cookieEnabled) { 
    document.cookie="testcookie"
    cookieEnabled=(document.cookie.indexOf("testcookie")!=-1)? true : false
  }
  
  return cookieEnabled;
}

function setCookie(sName, sValue) { //для всего домена: path=/
  date = new Date(2050, 12, 31); //делаем куки неистекающие до 2050г.
  document.cookie = sName + "=" + escape(sValue) + "; expires=" + date.toGMTString()+"; path=/";
}

//do cookie
function setSesssionCookie(sName, sValue) { 
  document.cookie = sName + "=" + escape(sValue);
}

function getCookie(sName) {
  // cookies are separated by semicolons
  var aCookie = document.cookie.split("; ");
  for (var i=0; i < aCookie.length; i++)
  {
    // a name/value pair (a crumb) is separated by an equal sign
    var aCrumb = aCookie[i].split("=");
    if (sName == aCrumb[0]) 
      return unescape(aCrumb[1]);
  }
  // a cookie with the requested name does not exist
  return null;
}

function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function saveDefaultLang(lang) {

   if(testCookie()) {
     setCookie('METEOPROG_DEFAULT_LANG', lang);
   }
}

function isDefined(val){

  return ( typeof val != 'undefined' );
}

function isExists(val) {

  return (typeof val != 'undefined' && val != null);
}

function setSelectIndex(sel, val) {
  for(var p = 0; p < sel.options.length; p++) {
    if(sel.options[p].value == val) {
      sel.selectedIndex = p;
    }
  }
}

//разобрать урл параметры в масссив
function unserialize2array(url) {
  var arr = [];

  matcho = String(url).split(/\&/g);

  if(matcho!=null&&matcho.length>0)
   for (var j=0; j<matcho.length; j++) {
     arr[j] = matcho[j].substring(matcho[j].indexOf("=")+1, matcho[j].length);
   }

   return arr;
}

var begcdata = '<![CDATA[';
var endcdata = ']]>';

function addCDataTag(val) {
  if(val.indexOf(begcdata)==-1)
    return begcdata + val + endcdata;
  else
    return val;
}

function removeCDataTag(val) {
  if(val.indexOf(begcdata)!=-1) {
    val = val.replace(begcdata,"");
    val = val.replace(endcdata,"");
  }
  return val;
}

//заставляет выполниться скрипт полученный через AJAX
function run_js(contname) {
  var cont = document.getElementById(contname);
  if(null!=cont) {
    with(cont) {
      var arr_scripts = $(cont).getElementsByTagName("script");
      for(i in arr_scripts) {
        var src = arr_scripts[i].src;
        if(null!=src) {
          document.appendChild(arr_scripts[i]);
/*        
          var has_question = (src.indexOf('?', 1)>0 ? true : false );
          if(0==src.length)
            arr_scripts[i].setAttribute('src', '');
          else
            arr_scripts[i].setAttribute('src', arr_scripts[i].src + (has_question==true ? '&' : '?') + '1=1');*/
        }
      }
    }
  }
}

function setUrlParameter(strPath, parmName, newVal) {

  if(String(strPath).indexOf(parmName)>-1) {
      strPath += "&";
      re = new RegExp("\&\&");
      strPath = String(strPath).replace(re, "&");
      re = new RegExp("("+parmName+"=)(.*?)\&");
      return String(strPath).replace(re, "$1"+newVal+"&");
  } else
    return strPath+"&"+parmName+"="+newVal;
}

switch(getCookie('METEOPROG_CLRSBG')) {
 case CLRS_GREEN:
  var CUR_CLRS_BG = CLRS_GREEN;
  var CUR_CLRS_BG_LT = CLRS_GREEN_LIGHT;
  var CUR_CLRS_BRDR = CLRS_GREEN;
  var CUR_CLRS_BRDR_LT = CLRS_GREEN_LIGHT;
  break;
 case CLRS_BLUE:
  var CUR_CLRS_BG = CLRS_BLUE;
  var CUR_CLRS_BG_LT = CLRS_BLUE_LIGHT;
  var CUR_CLRS_BRDR = CLRS_BLUE;
  var CUR_CLRS_BRDR_LT = CLRS_BLUE_LIGHT;
  break;
 case CLRS_LILAC:
  var CUR_CLRS_BG = CLRS_LILAC;
  var CUR_CLRS_BG_LT = CLRS_LILAC_LIGHT;
  var CUR_CLRS_BRDR = CLRS_LILAC;
  var CUR_CLRS_BRDR_LT = CLRS_LILAC_LIGHT;
  break;
 default:
  var CUR_CLRS_BG = CLRS_RED;
  var CUR_CLRS_BG_LT = CLRS_RED_LIGHT;
  var CUR_CLRS_BRDR = CLRS_RED;
  var CUR_CLRS_BRDR_LT = CLRS_RED_LIGHT;
}


/********************************************************************
******* builder.js
********************************************************************/

var Builder={NODEMAP:{AREA:"map",CAPTION:"table",COL:"table",COLGROUP:"table",LEGEND:"fieldset",OPTGROUP:"select",OPTION:"select",PARAM:"object",TBODY:"table",TD:"table",TFOOT:"table",TH:"table",THEAD:"table",TR:"table"},node:function(A){A=A.toUpperCase();var F=this.NODEMAP[A]||"div";var B=document.createElement(F);try{B.innerHTML="<"+A+"></"+A+">"}catch(E){}var D=B.firstChild||null;if(D&&(D.tagName.toUpperCase()!=A)){D=D.getElementsByTagName(A)[0]}if(!D){D=document.createElement(A)}if(!D){return }if(arguments[1]){if(this._isStringOrNumber(arguments[1])||(arguments[1] instanceof Array)||arguments[1].tagName){this._children(D,arguments[1])}else{var C=this._attributes(arguments[1]);if(C.length){try{B.innerHTML="<"+A+" "+C+"></"+A+">"}catch(E){}D=B.firstChild||null;if(!D){D=document.createElement(A);for(attr in arguments[1]){D[attr=="class"?"className":attr]=arguments[1][attr]}}if(D.tagName.toUpperCase()!=A){D=B.getElementsByTagName(A)[0]}}}}if(arguments[2]){this._children(D,arguments[2])}return D},_text:function(A){return document.createTextNode(A)},ATTR_MAP:{"className":"class","htmlFor":"for"},_attributes:function(A){var B=[];for(attribute in A){B.push((attribute in this.ATTR_MAP?this.ATTR_MAP[attribute]:attribute)+'="'+A[attribute].toString().escapeHTML().gsub(/"/,"&quot;")+'"')}return B.join(" ")},_children:function(B,A){if(A.tagName){B.appendChild(A);return }if(typeof A=="object"){A.flatten().each(function(C){if(typeof C=="object"){B.appendChild(C)}else{if(Builder._isStringOrNumber(C)){B.appendChild(Builder._text(C))}}})}else{if(Builder._isStringOrNumber(A)){B.appendChild(Builder._text(A))}}},_isStringOrNumber:function(A){return(typeof A=="string"||typeof A=="number")},build:function(B){var A=this.node("div");$(A).update(B.strip());return A.down()},dump:function(B){if(typeof B!="object"&&typeof B!="function"){B=window}var A=("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);A.each(function(C){B[C]=function(){return Builder.node.apply(Builder,[C].concat($A(arguments)))}})}}

/********************************************************************
******* scriptaculous.js
********************************************************************/

var Scriptaculous = {
  Version: '1.8.1',
  require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"><\/script>');
  },
  REQUIRED_PROTOTYPE: '1.6.0',
  load: function() {
    function convertVersionString(versionString){
      var r = versionString.split('.');
      return parseInt(r[0])*100000 + parseInt(r[1])*1000 + parseInt(r[2]);
    }
 
    if((typeof Prototype=='undefined') || 
       (typeof Element == 'undefined') || 
       (typeof Element.Methods=='undefined') ||
       (convertVersionString(Prototype.Version) < 
        convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
       throw("script.aculo.us requires the Prototype JavaScript framework >= " +
        Scriptaculous.REQUIRED_PROTOTYPE);
    
    $A(document.getElementsByTagName("script")).findAll( function(s) {
      return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/))
    }).each( function(s) {
      var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,'');
      var includes = s.src.match(/\?.*load=([a-z,]*)/);
      (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each(
       function(include) { Scriptaculous.require(path+include+'.js') });
    });
  }
}

Scriptaculous.load();


/********************************************************************
******* effects.js
********************************************************************/

String.prototype.parseColor=function(){var A="#";if(this.slice(0,4)=="rgb("){var C=this.slice(4,this.length-1).split(",");var B=0;do{A+=parseInt(C[B]).toColorPart()}while(++B<3)}else{if(this.slice(0,1)=="#"){if(this.length==4){for(var B=1;B<4;B++){A+=(this.charAt(B)+this.charAt(B)).toLowerCase()}}if(this.length==7){A=this.toLowerCase()}}}return(A.length==7?A:(arguments[0]||this))};Element.collectTextNodes=function(A){return $A($(A).childNodes).collect(function(B){return(B.nodeType==3?B.nodeValue:(B.hasChildNodes()?Element.collectTextNodes(B):""))}).flatten().join("")};Element.collectTextNodesIgnoreClass=function(A,B){return $A($(A).childNodes).collect(function(C){return(C.nodeType==3?C.nodeValue:((C.hasChildNodes()&&!Element.hasClassName(C,B))?Element.collectTextNodesIgnoreClass(C,B):""))}).flatten().join("")};Element.setContentZoom=function(A,B){A=$(A);A.setStyle({fontSize:(B/100)+"em"});if(Prototype.Browser.WebKit){window.scrollBy(0,0)}return A};Element.getInlineOpacity=function(A){return $(A).style.opacity||""};Element.forceRerendering=function(A){try{A=$(A);var C=document.createTextNode(" ");A.appendChild(C);A.removeChild(C)}catch(B){}};var Effect={_elementDoesNotExistError:{name:"ElementDoesNotExistError",message:"The specified DOM element does not exist, but is required for this effect to operate"},Transitions:{linear:Prototype.K,sinoidal:function(A){return(-Math.cos(A*Math.PI)/2)+0.5},reverse:function(A){return 1-A},flicker:function(A){var A=((-Math.cos(A*Math.PI)/4)+0.75)+Math.random()/4;return A>1?1:A},wobble:function(A){return(-Math.cos(A*Math.PI*(9*A))/2)+0.5},pulse:function(B,A){A=A||5;return(((B%(1/A))*A).round()==0?((B*A*2)-(B*A*2).floor()):1-((B*A*2)-(B*A*2).floor()))},spring:function(A){return 1-(Math.cos(A*4.5*Math.PI)*Math.exp(-A*6))},none:function(A){return 0},full:function(A){return 1}},DefaultOptions:{duration:1,fps:100,sync:false,from:0,to:1,delay:0,queue:"parallel"},tagifyText:function(A){var B="position:relative";if(Prototype.Browser.IE){B+=";zoom:1"}A=$(A);$A(A.childNodes).each(function(C){if(C.nodeType==3){C.nodeValue.toArray().each(function(D){A.insertBefore(new Element("span",{style:B}).update(D==" "?String.fromCharCode(160):D),C)});Element.remove(C)}})},multiple:function(B,C){var E;if(((typeof B=="object")||Object.isFunction(B))&&(B.length)){E=B}else{E=$(B).childNodes}var A=Object.extend({speed:0.1,delay:0},arguments[2]||{});var D=A.delay;$A(E).each(function(G,F){new C(G,Object.extend(A,{delay:F*A.speed+D}))})},PAIRS:{"slide":["SlideDown","SlideUp"],"blind":["BlindDown","BlindUp"],"appear":["Appear","Fade"]},toggle:function(B,C){B=$(B);C=(C||"appear").toLowerCase();var A=Object.extend({queue:{position:"end",scope:(B.id||"global"),limit:1}},arguments[2]||{});Effect[B.visible()?Effect.PAIRS[C][1]:Effect.PAIRS[C][0]](B,A)}};Effect.DefaultOptions.transition=Effect.Transitions.sinoidal;Effect.ScopedQueue=Class.create(Enumerable,{initialize:function(){this.effects=[];this.interval=null},_each:function(A){this.effects._each(A)},add:function(B){var C=new Date().getTime();var A=Object.isString(B.options.queue)?B.options.queue:B.options.queue.position;switch(A){case"front":this.effects.findAll(function(D){return D.state=="idle"}).each(function(D){D.startOn+=B.finishOn;D.finishOn+=B.finishOn});break;case"with-last":C=this.effects.pluck("startOn").max()||C;break;case"end":C=this.effects.pluck("finishOn").max()||C;break}B.startOn+=C;B.finishOn+=C;if(!B.options.queue.limit||(this.effects.length<B.options.queue.limit)){this.effects.push(B)}if(!this.interval){this.interval=setInterval(this.loop.bind(this),15)}},remove:function(A){this.effects=this.effects.reject(function(B){return B==A});if(this.effects.length==0){clearInterval(this.interval);this.interval=null}},loop:function(){var C=new Date().getTime();for(var B=0,A=this.effects.length;B<A;B++){this.effects[B]&&this.effects[B].loop(C)}}});Effect.Queues={instances:$H(),get:function(A){if(!Object.isString(A)){return A}return this.instances.get(A)||this.instances.set(A,new Effect.ScopedQueue())}};Effect.Queue=Effect.Queues.get("global");Effect.Base=Class.create({position:null,start:function(options){function codeForEvent(options,eventName){return((options[eventName+"Internal"]?"this.options."+eventName+"Internal(this);":"")+(options[eventName]?"this.options."+eventName+"(this);":""))}if(options&&options.transition===false){options.transition=Effect.Transitions.linear}this.options=Object.extend(Object.extend({},Effect.DefaultOptions),options||{});this.currentFrame=0;this.state="idle";this.startOn=this.options.delay*1000;this.finishOn=this.startOn+(this.options.duration*1000);this.fromToDelta=this.options.to-this.options.from;this.totalTime=this.finishOn-this.startOn;this.totalFrames=this.options.fps*this.options.duration;eval('this.render = function(pos){ if (this.state=="idle"){this.state="running";'+codeForEvent(this.options,"beforeSetup")+(this.setup?"this.setup();":"")+codeForEvent(this.options,"afterSetup")+'};if (this.state=="running"){pos=this.options.transition(pos)*'+this.fromToDelta+"+"+this.options.from+";this.position=pos;"+codeForEvent(this.options,"beforeUpdate")+(this.update?"this.update(pos);":"")+codeForEvent(this.options,"afterUpdate")+"}}");this.event("beforeStart");if(!this.options.sync){Effect.Queues.get(Object.isString(this.options.queue)?"global":this.options.queue.scope).add(this)}},loop:function(C){if(C>=this.startOn){if(C>=this.finishOn){this.render(1);this.cancel();this.event("beforeFinish");if(this.finish){this.finish()}this.event("afterFinish");return }var B=(C-this.startOn)/this.totalTime,A=(B*this.totalFrames).round();if(A>this.currentFrame){this.render(B);this.currentFrame=A}}},cancel:function(){if(!this.options.sync){Effect.Queues.get(Object.isString(this.options.queue)?"global":this.options.queue.scope).remove(this)}this.state="finished"},event:function(A){if(this.options[A+"Internal"]){this.options[A+"Internal"](this)}if(this.options[A]){this.options[A](this)}},inspect:function(){var A=$H();for(property in this){if(!Object.isFunction(this[property])){A.set(property,this[property])}}return"#<Effect:"+A.inspect()+",options:"+$H(this.options).inspect()+">"}});Effect.Parallel=Class.create(Effect.Base,{initialize:function(A){this.effects=A||[];this.start(arguments[1])},update:function(A){this.effects.invoke("render",A)},finish:function(A){this.effects.each(function(B){B.render(1);B.cancel();B.event("beforeFinish");if(B.finish){B.finish(A)}B.event("afterFinish")})}});Effect.Tween=Class.create(Effect.Base,{initialize:function(C,F,E){C=Object.isString(C)?$(C):C;var B=$A(arguments),D=B.last(),A=B.length==5?B[3]:null;this.method=Object.isFunction(D)?D.bind(C):Object.isFunction(C[D])?C[D].bind(C):function(G){C[D]=G};this.start(Object.extend({from:F,to:E},A||{}))},update:function(A){this.method(A)}});Effect.Event=Class.create(Effect.Base,{initialize:function(){this.start(Object.extend({duration:0},arguments[0]||{}))},update:Prototype.emptyFunction});Effect.Opacity=Class.create(Effect.Base,{initialize:function(B){this.element=$(B);if(!this.element){throw (Effect._elementDoesNotExistError)}if(Prototype.Browser.IE&&(!this.element.currentStyle.hasLayout)){this.element.setStyle({zoom:1})}var A=Object.extend({from:this.element.getOpacity()||0,to:1},arguments[1]||{});this.start(A)},update:function(A){this.element.setOpacity(A)}});Effect.Move=Class.create(Effect.Base,{initialize:function(B){this.element=$(B);if(!this.element){throw (Effect._elementDoesNotExistError)}var A=Object.extend({x:0,y:0,mode:"relative"},arguments[1]||{});this.start(A)},setup:function(){this.element.makePositioned();this.originalLeft=parseFloat(this.element.getStyle("left")||"0");this.originalTop=parseFloat(this.element.getStyle("top")||"0");if(this.options.mode=="absolute"){this.options.x=this.options.x-this.originalLeft;this.options.y=this.options.y-this.originalTop}},update:function(A){this.element.setStyle({left:(this.options.x*A+this.originalLeft).round()+"px",top:(this.options.y*A+this.originalTop).round()+"px"})}});Effect.MoveBy=function(B,A,C){return new Effect.Move(B,Object.extend({x:C,y:A},arguments[3]||{}))};Effect.Scale=Class.create(Effect.Base,{initialize:function(B,C){this.element=$(B);if(!this.element){throw (Effect._elementDoesNotExistError)}var A=Object.extend({scaleX:true,scaleY:true,scaleContent:true,scaleFromCenter:false,scaleMode:"box",scaleFrom:100,scaleTo:C},arguments[2]||{});this.start(A)},setup:function(){this.restoreAfterFinish=this.options.restoreAfterFinish||false;this.elementPositioning=this.element.getStyle("position");this.originalStyle={};["top","left","width","height","fontSize"].each(function(B){this.originalStyle[B]=this.element.style[B]}.bind(this));this.originalTop=this.element.offsetTop;this.originalLeft=this.element.offsetLeft;var A=this.element.getStyle("font-size")||"100%";["em","px","%","pt"].each(function(B){if(A.indexOf(B)>0){this.fontSize=parseFloat(A);this.fontSizeType=B}}.bind(this));this.factor=(this.options.scaleTo-this.options.scaleFrom)/100;this.dims=null;if(this.options.scaleMode=="box"){this.dims=[this.element.offsetHeight,this.element.offsetWidth]}if(/^content/.test(this.options.scaleMode)){this.dims=[this.element.scrollHeight,this.element.scrollWidth]}if(!this.dims){this.dims=[this.options.scaleMode.originalHeight,this.options.scaleMode.originalWidth]}},update:function(A){var B=(this.options.scaleFrom/100)+(this.factor*A);if(this.options.scaleContent&&this.fontSize){this.element.setStyle({fontSize:this.fontSize*B+this.fontSizeType})}this.setDimensions(this.dims[0]*B,this.dims[1]*B)},finish:function(A){if(this.restoreAfterFinish){this.element.setStyle(this.originalStyle)}},setDimensions:function(A,D){var E={};if(this.options.scaleX){E.width=D.round()+"px"}if(this.options.scaleY){E.height=A.round()+"px"}if(this.options.scaleFromCenter){var C=(A-this.dims[0])/2;var B=(D-this.dims[1])/2;if(this.elementPositioning=="absolute"){if(this.options.scaleY){E.top=this.originalTop-C+"px"}if(this.options.scaleX){E.left=this.originalLeft-B+"px"}}else{if(this.options.scaleY){E.top=-C+"px"}if(this.options.scaleX){E.left=-B+"px"}}}this.element.setStyle(E)}});Effect.Highlight=Class.create(Effect.Base,{initialize:function(B){this.element=$(B);if(!this.element){throw (Effect._elementDoesNotExistError)}var A=Object.extend({startcolor:"#ffff99"},arguments[1]||{});this.start(A)},setup:function(){if(this.element.getStyle("display")=="none"){this.cancel();return }this.oldStyle={};if(!this.options.keepBackgroundImage){this.oldStyle.backgroundImage=this.element.getStyle("background-image");this.element.setStyle({backgroundImage:"none"})}if(!this.options.endcolor){this.options.endcolor=this.element.getStyle("background-color").parseColor("#ffffff")}if(!this.options.restorecolor){this.options.restorecolor=this.element.getStyle("background-color")}this._base=$R(0,2).map(function(A){return parseInt(this.options.startcolor.slice(A*2+1,A*2+3),16)}.bind(this));this._delta=$R(0,2).map(function(A){return parseInt(this.options.endcolor.slice(A*2+1,A*2+3),16)-this._base[A]}.bind(this))},update:function(A){this.element.setStyle({backgroundColor:$R(0,2).inject("#",function(B,C,D){return B+((this._base[D]+(this._delta[D]*A)).round().toColorPart())}.bind(this))})},finish:function(){this.element.setStyle(Object.extend(this.oldStyle,{backgroundColor:this.options.restorecolor}))}});Effect.ScrollTo=function(D){var C=arguments[1]||{},B=document.viewport.getScrollOffsets(),E=$(D).cumulativeOffset(),A=(window.height||document.body.scrollHeight)-document.viewport.getHeight();if(C.offset){E[1]+=C.offset}return new Effect.Tween(null,B.top,E[1]>A?A:E[1],C,function(F){scrollTo(B.left,F.round())})};Effect.Fade=function(C){C=$(C);var A=C.getInlineOpacity();var B=Object.extend({from:C.getOpacity()||1,to:0,afterFinishInternal:function(D){if(D.options.to!=0){return }D.element.hide().setStyle({opacity:A})}},arguments[1]||{});return new Effect.Opacity(C,B)};Effect.Appear=function(B){B=$(B);var A=Object.extend({from:(B.getStyle("display")=="none"?0:B.getOpacity()||0),to:1,afterFinishInternal:function(C){C.element.forceRerendering()},beforeSetup:function(C){C.element.setOpacity(C.options.from).show()}},arguments[1]||{});return new Effect.Opacity(B,A)};Effect.Puff=function(B){B=$(B);var A={opacity:B.getInlineOpacity(),position:B.getStyle("position"),top:B.style.top,left:B.style.left,width:B.style.width,height:B.style.height};return new Effect.Parallel([new Effect.Scale(B,200,{sync:true,scaleFromCenter:true,scaleContent:true,restoreAfterFinish:true}),new Effect.Opacity(B,{sync:true,to:0})],Object.extend({duration:1,beforeSetupInternal:function(C){Position.absolutize(C.effects[0].element)},afterFinishInternal:function(C){C.effects[0].element.hide().setStyle(A)}},arguments[1]||{}))};Effect.BlindUp=function(A){A=$(A);A.makeClipping();return new Effect.Scale(A,0,Object.extend({scaleContent:false,scaleX:false,restoreAfterFinish:true,afterFinishInternal:function(B){B.element.hide().undoClipping()}},arguments[1]||{}))};Effect.BlindDown=function(B){B=$(B);var A=B.getDimensions();return new Effect.Scale(B,100,Object.extend({scaleContent:false,scaleX:false,scaleFrom:0,scaleMode:{originalHeight:A.height,originalWidth:A.width},restoreAfterFinish:true,afterSetup:function(C){C.element.makeClipping().setStyle({height:"0px"}).show()},afterFinishInternal:function(C){C.element.undoClipping()}},arguments[1]||{}))};Effect.SwitchOff=function(B){B=$(B);var A=B.getInlineOpacity();return new Effect.Appear(B,Object.extend({duration:0.4,from:0,transition:Effect.Transitions.flicker,afterFinishInternal:function(C){new Effect.Scale(C.element,1,{duration:0.3,scaleFromCenter:true,scaleX:false,scaleContent:false,restoreAfterFinish:true,beforeSetup:function(D){D.element.makePositioned().makeClipping()},afterFinishInternal:function(D){D.element.hide().undoClipping().undoPositioned().setStyle({opacity:A})}})}},arguments[1]||{}))};Effect.DropOut=function(B){B=$(B);var A={top:B.getStyle("top"),left:B.getStyle("left"),opacity:B.getInlineOpacity()};return new Effect.Parallel([new Effect.Move(B,{x:0,y:100,sync:true}),new Effect.Opacity(B,{sync:true,to:0})],Object.extend({duration:0.5,beforeSetup:function(C){C.effects[0].element.makePositioned()},afterFinishInternal:function(C){C.effects[0].element.hide().undoPositioned().setStyle(A)}},arguments[1]||{}))};Effect.Shake=function(D){D=$(D);var B=Object.extend({distance:20,duration:0.5},arguments[1]||{});var E=parseFloat(B.distance);var C=parseFloat(B.duration)/10;var A={top:D.getStyle("top"),left:D.getStyle("left")};return new Effect.Move(D,{x:E,y:0,duration:C,afterFinishInternal:function(F){new Effect.Move(F.element,{x:-E*2,y:0,duration:C*2,afterFinishInternal:function(G){new Effect.Move(G.element,{x:E*2,y:0,duration:C*2,afterFinishInternal:function(H){new Effect.Move(H.element,{x:-E*2,y:0,duration:C*2,afterFinishInternal:function(I){new Effect.Move(I.element,{x:E*2,y:0,duration:C*2,afterFinishInternal:function(J){new Effect.Move(J.element,{x:-E,y:0,duration:C,afterFinishInternal:function(K){K.element.undoPositioned().setStyle(A)}})}})}})}})}})}})};Effect.SlideDown=function(C){C=$(C).cleanWhitespace();var A=C.down().getStyle("bottom");var B=C.getDimensions();return new Effect.Scale(C,100,Object.extend({scaleContent:false,scaleX:false,scaleFrom:window.opera?0:1,scaleMode:{originalHeight:B.height,originalWidth:B.width},restoreAfterFinish:true,afterSetup:function(D){D.element.makePositioned();D.element.down().makePositioned();if(window.opera){D.element.setStyle({top:""})}D.element.makeClipping().setStyle({height:"0px"}).show()},afterUpdateInternal:function(D){D.element.down().setStyle({bottom:(D.dims[0]-D.element.clientHeight)+"px"})},afterFinishInternal:function(D){D.element.undoClipping().undoPositioned();D.element.down().undoPositioned().setStyle({bottom:A})}},arguments[1]||{}))};Effect.SlideUp=function(C){C=$(C).cleanWhitespace();var A=C.down().getStyle("bottom");var B=C.getDimensions();return new Effect.Scale(C,window.opera?0:1,Object.extend({scaleContent:false,scaleX:false,scaleMode:"box",scaleFrom:100,scaleMode:{originalHeight:B.height,originalWidth:B.width},restoreAfterFinish:true,afterSetup:function(D){D.element.makePositioned();D.element.down().makePositioned();if(window.opera){D.element.setStyle({top:""})}D.element.makeClipping().show()},afterUpdateInternal:function(D){D.element.down().setStyle({bottom:(D.dims[0]-D.element.clientHeight)+"px"})},afterFinishInternal:function(D){D.element.hide().undoClipping().undoPositioned();D.element.down().undoPositioned().setStyle({bottom:A})}},arguments[1]||{}))};Effect.Squish=function(A){return new Effect.Scale(A,window.opera?1:0,{restoreAfterFinish:true,beforeSetup:function(B){B.element.makeClipping()},afterFinishInternal:function(B){B.element.hide().undoClipping()}})};Effect.Grow=function(C){C=$(C);var B=Object.extend({direction:"center",moveTransition:Effect.Transitions.sinoidal,scaleTransition:Effect.Transitions.sinoidal,opacityTransition:Effect.Transitions.full},arguments[1]||{});var A={top:C.style.top,left:C.style.left,height:C.style.height,width:C.style.width,opacity:C.getInlineOpacity()};var G=C.getDimensions();var H,F;var E,D;switch(B.direction){case"top-left":H=F=E=D=0;break;case"top-right":H=G.width;F=D=0;E=-G.width;break;case"bottom-left":H=E=0;F=G.height;D=-G.height;break;case"bottom-right":H=G.width;F=G.height;E=-G.width;D=-G.height;break;case"center":H=G.width/2;F=G.height/2;E=-G.width/2;D=-G.height/2;break}return new Effect.Move(C,{x:H,y:F,duration:0.01,beforeSetup:function(I){I.element.hide().makeClipping().makePositioned()},afterFinishInternal:function(I){new Effect.Parallel([new Effect.Opacity(I.element,{sync:true,to:1,from:0,transition:B.opacityTransition}),new Effect.Move(I.element,{x:E,y:D,sync:true,transition:B.moveTransition}),new Effect.Scale(I.element,100,{scaleMode:{originalHeight:G.height,originalWidth:G.width},sync:true,scaleFrom:window.opera?1:0,transition:B.scaleTransition,restoreAfterFinish:true})],Object.extend({beforeSetup:function(J){J.effects[0].element.setStyle({height:"0px"}).show()},afterFinishInternal:function(J){J.effects[0].element.undoClipping().undoPositioned().setStyle(A)}},B))}})};Effect.Shrink=function(C){C=$(C);var B=Object.extend({direction:"center",moveTransition:Effect.Transitions.sinoidal,scaleTransition:Effect.Transitions.sinoidal,opacityTransition:Effect.Transitions.none},arguments[1]||{});var A={top:C.style.top,left:C.style.left,height:C.style.height,width:C.style.width,opacity:C.getInlineOpacity()};var F=C.getDimensions();var E,D;switch(B.direction){case"top-left":E=D=0;break;case"top-right":E=F.width;D=0;break;case"bottom-left":E=0;D=F.height;break;case"bottom-right":E=F.width;D=F.height;break;case"center":E=F.width/2;D=F.height/2;break}return new Effect.Parallel([new Effect.Opacity(C,{sync:true,to:0,from:1,transition:B.opacityTransition}),new Effect.Scale(C,window.opera?1:0,{sync:true,transition:B.scaleTransition,restoreAfterFinish:true}),new Effect.Move(C,{x:E,y:D,sync:true,transition:B.moveTransition})],Object.extend({beforeStartInternal:function(G){G.effects[0].element.makePositioned().makeClipping()},afterFinishInternal:function(G){G.effects[0].element.hide().undoClipping().undoPositioned().setStyle(A)}},B))};Effect.Pulsate=function(C){C=$(C);var B=arguments[1]||{};var A=C.getInlineOpacity();var E=B.transition||Effect.Transitions.sinoidal;var D=function(F){return E(1-Effect.Transitions.pulse(F,B.pulses))};D.bind(E);return new Effect.Opacity(C,Object.extend(Object.extend({duration:2,from:0,afterFinishInternal:function(F){F.element.setStyle({opacity:A})}},B),{transition:D}))};Effect.Fold=function(B){B=$(B);var A={top:B.style.top,left:B.style.left,width:B.style.width,height:B.style.height};B.makeClipping();return new Effect.Scale(B,5,Object.extend({scaleContent:false,scaleX:false,afterFinishInternal:function(C){new Effect.Scale(B,1,{scaleContent:false,scaleY:false,afterFinishInternal:function(D){D.element.hide().undoClipping().setStyle(A)}})}},arguments[1]||{}))};Effect.Morph=Class.create(Effect.Base,{initialize:function(C){this.element=$(C);if(!this.element){throw (Effect._elementDoesNotExistError)}var A=Object.extend({style:{}},arguments[1]||{});if(!Object.isString(A.style)){this.style=$H(A.style)}else{if(A.style.include(":")){this.style=A.style.parseStyle()}else{this.element.addClassName(A.style);this.style=$H(this.element.getStyles());this.element.removeClassName(A.style);var B=this.element.getStyles();this.style=this.style.reject(function(D){return D.value==B[D.key]});A.afterFinishInternal=function(D){D.element.addClassName(D.options.style);D.transforms.each(function(E){D.element.style[E.style]=""})}}}this.start(A)},setup:function(){function A(B){if(!B||["rgba(0, 0, 0, 0)","transparent"].include(B)){B="#ffffff"}B=B.parseColor();return $R(0,2).map(function(C){return parseInt(B.slice(C*2+1,C*2+3),16)})}this.transforms=this.style.map(function(G){var F=G[0],E=G[1],D=null;if(E.parseColor("#zzzzzz")!="#zzzzzz"){E=E.parseColor();D="color"}else{if(F=="opacity"){E=parseFloat(E);if(Prototype.Browser.IE&&(!this.element.currentStyle.hasLayout)){this.element.setStyle({zoom:1})}}else{if(Element.CSS_LENGTH.test(E)){var C=E.match(/^([\+\-]?[0-9\.]+)(.*)$/);E=parseFloat(C[1]);D=(C.length==3)?C[2]:null}}}var B=this.element.getStyle(F);return{style:F.camelize(),originalValue:D=="color"?A(B):parseFloat(B||0),targetValue:D=="color"?A(E):E,unit:D}}.bind(this)).reject(function(B){return((B.originalValue==B.targetValue)||(B.unit!="color"&&(isNaN(B.originalValue)||isNaN(B.targetValue))))})},update:function(A){var D={},B,C=this.transforms.length;while(C--){D[(B=this.transforms[C]).style]=B.unit=="color"?"#"+(Math.round(B.originalValue[0]+(B.targetValue[0]-B.originalValue[0])*A)).toColorPart()+(Math.round(B.originalValue[1]+(B.targetValue[1]-B.originalValue[1])*A)).toColorPart()+(Math.round(B.originalValue[2]+(B.targetValue[2]-B.originalValue[2])*A)).toColorPart():(B.originalValue+(B.targetValue-B.originalValue)*A).toFixed(3)+(B.unit===null?"":B.unit)}this.element.setStyle(D,true)}});Effect.Transform=Class.create({initialize:function(A){this.tracks=[];this.options=arguments[1]||{};this.addTracks(A)},addTracks:function(A){A.each(function(B){B=$H(B);var C=B.values().first();this.tracks.push($H({ids:B.keys().first(),effect:Effect.Morph,options:{style:C}}))}.bind(this));return this},play:function(){return new Effect.Parallel(this.tracks.map(function(A){var D=A.get("ids"),C=A.get("effect"),B=A.get("options");var E=[$(D)||$$(D)].flatten();return E.map(function(F){return new C(F,Object.extend({sync:true},B))})}).flatten(),this.options)}});Element.CSS_PROPERTIES=$w("backgroundColor backgroundPosition borderBottomColor borderBottomStyle borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth borderRightColor borderRightStyle borderRightWidth borderSpacing borderTopColor borderTopStyle borderTopWidth bottom clip color fontSize fontWeight height left letterSpacing lineHeight marginBottom marginLeft marginRight marginTop markerOffset maxHeight maxWidth minHeight minWidth opacity outlineColor outlineOffset outlineWidth paddingBottom paddingLeft paddingRight paddingTop right textIndent top width wordSpacing zIndex");Element.CSS_LENGTH=/^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;String.__parseStyleElement=document.createElement("div");String.prototype.parseStyle=function(){var B,A=$H();if(Prototype.Browser.WebKit){B=new Element("div",{style:this}).style}else{String.__parseStyleElement.innerHTML='<div style="'+this+'"></div>';B=String.__parseStyleElement.childNodes[0].style}Element.CSS_PROPERTIES.each(function(C){if(B[C]){A.set(C,B[C])}});if(Prototype.Browser.IE&&this.include("opacity")){A.set("opacity",this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1])}return A};if(document.defaultView&&document.defaultView.getComputedStyle){Element.getStyles=function(B){var A=document.defaultView.getComputedStyle($(B),null);return Element.CSS_PROPERTIES.inject({},function(C,D){C[D]=A[D];return C})}}else{Element.getStyles=function(B){B=$(B);var A=B.currentStyle,C;C=Element.CSS_PROPERTIES.inject({},function(D,E){D[E]=A[E];return D});if(!C.opacity){C.opacity=B.getOpacity()}return C}}Effect.Methods={morph:function(A,B){A=$(A);new Effect.Morph(A,Object.extend({style:B},arguments[2]||{}));return A},visualEffect:function(C,E,B){C=$(C);var D=E.dasherize().camelize(),A=D.charAt(0).toUpperCase()+D.substring(1);new Effect[A](C,B);return C},highlight:function(B,A){B=$(B);new Effect.Highlight(B,A);return B}};$w("fade appear grow shrink fold blindUp blindDown slideUp slideDown pulsate shake puff squish switchOff dropOut").each(function(A){Effect.Methods[A]=function(C,B){C=$(C);Effect[A.charAt(0).toUpperCase()+A.substring(1)](C,B);return C}});$w("getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles").each(function(A){Effect.Methods[A]=Element[A]});Element.addMethods(Effect.Methods)

/********************************************************************
******* controls.js
********************************************************************/

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

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

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

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

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

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

    Element.hide(this.update);

  /*********  Changed by  ***********************************************
  * This patch adds a destroy method to the Autocompleter object that 
  * unregisters any previously registered event, thus  allowing one to 
  * re-create a new Autocompleter object with different settings on the 
  * same <input type="text"> tag, without ill effects.
  * http://dev.rubyonrails.org/ticket/6748 
  * http://dev.rubyonrails.org/attachment/ticket/6748/controls.js.diff 
  **********************************************************************/
//    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
//    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
    this.eventEntryMouseOver = this.onHover.bindAsEventListener(this); 
    this.eventEntryClick = this.onClick.bindAsEventListener(this); 
 
    this.eventBlur = this.onBlur.bindAsEventListener(this); 
    this.eventKeyPress = this.onKeyPress.bindAsEventListener(this); 
    Event.observe(this.element, "blur", this.eventBlur); 
    Event.observe(this.element, "keypress", this.eventKeyPress); 
  }, 
 
  destroy: function() { 
    Event.stopObserving(this.element, "blur", this.eventBlur); 
    Event.stopObserving(this.element, "keypress", this.eventKeyPress); 
    for (var i = 0; i < this.entryCount; i++) { 
      var entry = this.getEntry(i); 
      this.removeObservers(entry); 
    } 
  },
  /*********  Changed   ********/
 
  show: function() {
    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
    if(!this.iefix && 
      (Prototype.Browser.IE) &&
      (Element.getStyle(this.update, 'position')=='absolute')) {
      new Insertion.After(this.update, 
       '<iframe id="' + this.update.id + '_iefix" '+
       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
      this.iefix = $(this.update.id+'_iefix');
    }
    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
  },
  
  fixIEOverlapping: function() {
    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
    this.iefix.style.zIndex = 1;
    this.update.style.zIndex = 2;
    Element.show(this.iefix);
  },

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

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

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

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

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

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

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

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

  updateElement: function(selectedElement) {
    if (this.options.updateElement) {
      this.options.updateElement(selectedElement);
      return;
    }
    var value = '';
    if (this.options.select) {
      var nodes = $(selectedElement).select('.' + this.options.select) || [];
      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
    } else
      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
    
    var bounds = this.getTokenBounds();
    if (bounds[0] != -1) {
      var newValue = this.element.value.substr(0, bounds[0]);
      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
      if (whitespace)
        newValue += whitespace[0];
      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
    } else {
      this.element.value = value;
    }
    
    /********************************************************************************/
    /*********  Added by Kozyuk Alexander, 06/2008                           ********/
    /*********  getting key value or row identifier from selected item       ********/
    /********************************************************************************/
    if(typeof selectedElement.id != 'undefined')
      this.element.rowid = selectedElement.id;
    /********************************************************************************/
    
    this.oldElementValue = this.element.value;
    this.element.focus();
    
    if (this.options.afterUpdateElement)
      this.options.afterUpdateElement(this.element, selectedElement);
  },

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

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

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

  /*********  Changed by  ***********************************************
  * http://dev.rubyonrails.org/ticket/6748 
  * http://dev.rubyonrails.org/attachment/ticket/6748/controls.js.diff 
  **********************************************************************/
  addObservers: function(element) {
//    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
//    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
     Event.observe(element, "mouseover", this.eventEntryMouseOver); 
     Event.observe(element, "click", this.eventEntryClick); 
   }, 
  
   removeObservers: function(element) { 
     Event.stopObserving(element, "mouseover", this.eventEntryMouseOver); 
     Event.stopObserving(element, "click", this.eventEntryClick); 
   }, 
  /*********  Changed   ********/

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


/********************************************************************
******* dragdrop.js
********************************************************************/

if(Object.isUndefined(Effect)){throw ("dragdrop.js requires including script.aculo.us' effects.js library")}var Droppables={drops:[],remove:function(A){this.drops=this.drops.reject(function(B){return B.element==$(A)})},add:function(B){B=$(B);var A=Object.extend({greedy:true,hoverclass:null,tree:false},arguments[1]||{});if(A.containment){A._containers=[];var C=A.containment;if(Object.isArray(C)){C.each(function(D){A._containers.push($(D))})}else{A._containers.push($(C))}}if(A.accept){A.accept=[A.accept].flatten()}Element.makePositioned(B);A.element=B;this.drops.push(A)},findDeepestChild:function(A){deepest=A[0];for(i=1;i<A.length;++i){if(Element.isParent(A[i].element,deepest.element)){deepest=A[i]}}return deepest},isContained:function(B,A){var C;if(A.tree){C=B.treeNode}else{C=B.parentNode}return A._containers.detect(function(D){return C==D})},isAffected:function(A,C,B){return((B.element!=C)&&((!B._containers)||this.isContained(C,B))&&((!B.accept)||(Element.classNames(C).detect(function(D){return B.accept.include(D)})))&&Position.within(B.element,A[0],A[1]))},deactivate:function(A){if(A.hoverclass){Element.removeClassName(A.element,A.hoverclass)}this.last_active=null},activate:function(A){if(A.hoverclass){Element.addClassName(A.element,A.hoverclass)}this.last_active=A},show:function(A,C){if(!this.drops.length){return }var B,D=[];this.drops.each(function(E){if(Droppables.isAffected(A,C,E)){D.push(E)}});if(D.length>0){B=Droppables.findDeepestChild(D)}if(this.last_active&&this.last_active!=B){this.deactivate(this.last_active)}if(B){Position.within(B.element,A[0],A[1]);if(B.onHover){B.onHover(C,B.element,Position.overlap(B.overlap,B.element))}if(B!=this.last_active){Droppables.activate(B)}}},fire:function(B,A){if(!this.last_active){return }Position.prepare();if(this.isAffected([Event.pointerX(B),Event.pointerY(B)],A,this.last_active)){if(this.last_active.onDrop){this.last_active.onDrop(A,this.last_active.element,B);return true}}},reset:function(){if(this.last_active){this.deactivate(this.last_active)}}};var Draggables={drags:[],observers:[],register:function(A){if(this.drags.length==0){this.eventMouseUp=this.endDrag.bindAsEventListener(this);this.eventMouseMove=this.updateDrag.bindAsEventListener(this);this.eventKeypress=this.keyPress.bindAsEventListener(this);Event.observe(document,"mouseup",this.eventMouseUp);Event.observe(document,"mousemove",this.eventMouseMove);Event.observe(document,"keypress",this.eventKeypress)}this.drags.push(A)},unregister:function(A){this.drags=this.drags.reject(function(B){return B==A});if(this.drags.length==0){Event.stopObserving(document,"mouseup",this.eventMouseUp);Event.stopObserving(document,"mousemove",this.eventMouseMove);Event.stopObserving(document,"keypress",this.eventKeypress)}},activate:function(A){if(A.options.delay){this._timeout=setTimeout(function(){Draggables._timeout=null;window.focus();Draggables.activeDraggable=A}.bind(this),A.options.delay)}else{window.focus();this.activeDraggable=A}},deactivate:function(){this.activeDraggable=null},updateDrag:function(A){if(!this.activeDraggable){return }var B=[Event.pointerX(A),Event.pointerY(A)];if(this._lastPointer&&(this._lastPointer.inspect()==B.inspect())){return }this._lastPointer=B;this.activeDraggable.updateDrag(A,B)},endDrag:function(A){if(this._timeout){clearTimeout(this._timeout);this._timeout=null}if(!this.activeDraggable){return }this._lastPointer=null;this.activeDraggable.endDrag(A);this.activeDraggable=null},keyPress:function(A){if(this.activeDraggable){this.activeDraggable.keyPress(A)}},addObserver:function(A){this.observers.push(A);this._cacheObserverCallbacks()},removeObserver:function(A){this.observers=this.observers.reject(function(B){return B.element==A});this._cacheObserverCallbacks()},notify:function(B,A,C){if(this[B+"Count"]>0){this.observers.each(function(D){if(D[B]){D[B](B,A,C)}})}if(A.options[B]){A.options[B](A,C)}},_cacheObserverCallbacks:function(){["onStart","onEnd","onDrag"].each(function(A){Draggables[A+"Count"]=Draggables.observers.select(function(B){return B[A]}).length})}};var Draggable=Class.create({initialize:function(B){var C={handle:false,reverteffect:function(F,E,D){var G=Math.sqrt(Math.abs(E^2)+Math.abs(D^2))*0.02;new Effect.Move(F,{x:-D,y:-E,duration:G,queue:{scope:"_draggable",position:"end"}})},endeffect:function(E){var D=Object.isNumber(E._opacity)?E._opacity:1;new Effect.Opacity(E,{duration:0.2,from:0.7,to:D,queue:{scope:"_draggable",position:"end"},afterFinish:function(){Draggable._dragging[E]=false}})},zindex:1000,revert:false,quiet:false,scroll:false,scrollSensitivity:20,scrollSpeed:15,snap:false,delay:0};if(!arguments[1]||Object.isUndefined(arguments[1].endeffect)){Object.extend(C,{starteffect:function(D){D._opacity=Element.getOpacity(D);Draggable._dragging[D]=true;new Effect.Opacity(D,{duration:0.2,from:D._opacity,to:0.7})}})}var A=Object.extend(C,arguments[1]||{});this.element=$(B);if(A.handle&&Object.isString(A.handle)){this.handle=this.element.down("."+A.handle,0)}if(!this.handle){this.handle=$(A.handle)}if(!this.handle){this.handle=this.element}if(A.scroll&&!A.scroll.scrollTo&&!A.scroll.outerHTML){A.scroll=$(A.scroll);this._isScrollChild=Element.childOf(this.element,A.scroll)}Element.makePositioned(this.element);this.options=A;this.dragging=false;this.eventMouseDown=this.initDrag.bindAsEventListener(this);Event.observe(this.handle,"mousedown",this.eventMouseDown);Draggables.register(this)},destroy:function(){Event.stopObserving(this.handle,"mousedown",this.eventMouseDown);Draggables.unregister(this)},currentDelta:function(){return([parseInt(Element.getStyle(this.element,"left")||"0"),parseInt(Element.getStyle(this.element,"top")||"0")])},initDrag:function(A){if(!Object.isUndefined(Draggable._dragging[this.element])&&Draggable._dragging[this.element]){return }if(Event.isLeftClick(A)){var C=Event.element(A);if((tag_name=C.tagName.toUpperCase())&&(tag_name=="INPUT"||tag_name=="SELECT"||tag_name=="OPTION"||tag_name=="BUTTON"||tag_name=="TEXTAREA")){return }var B=[Event.pointerX(A),Event.pointerY(A)];var D=Position.cumulativeOffset(this.element);this.offset=[0,1].map(function(E){return(B[E]-D[E])});Draggables.activate(this);Event.stop(A)}},startDrag:function(B){this.dragging=true;if(!this.delta){this.delta=this.currentDelta()}if(this.options.zindex){this.originalZ=parseInt(Element.getStyle(this.element,"z-index")||0);this.element.style.zIndex=this.options.zindex}if(this.options.ghosting){this._clone=this.element.cloneNode(true);this.element._originallyAbsolute=(this.element.getStyle("position")=="absolute");if(!this.element._originallyAbsolute){Position.absolutize(this.element)}this.element.parentNode.insertBefore(this._clone,this.element)}if(this.options.scroll){if(this.options.scroll==window){var A=this._getWindowScroll(this.options.scroll);this.originalScrollLeft=A.left;this.originalScrollTop=A.top}else{this.originalScrollLeft=this.options.scroll.scrollLeft;this.originalScrollTop=this.options.scroll.scrollTop}}Draggables.notify("onStart",this,B);if(this.options.starteffect){this.options.starteffect(this.element)}},updateDrag:function(event,pointer){if(!this.dragging){this.startDrag(event)}if(!this.options.quiet){Position.prepare();Droppables.show(pointer,this.element)}Draggables.notify("onDrag",this,event);this.draw(pointer);if(this.options.change){this.options.change(this)}if(this.options.scroll){this.stopScrolling();var p;if(this.options.scroll==window){with(this._getWindowScroll(this.options.scroll)){p=[left,top,left+width,top+height]}}else{p=Position.page(this.options.scroll);p[0]+=this.options.scroll.scrollLeft+Position.deltaX;p[1]+=this.options.scroll.scrollTop+Position.deltaY;p.push(p[0]+this.options.scroll.offsetWidth);p.push(p[1]+this.options.scroll.offsetHeight)}var speed=[0,0];if(pointer[0]<(p[0]+this.options.scrollSensitivity)){speed[0]=pointer[0]-(p[0]+this.options.scrollSensitivity)}if(pointer[1]<(p[1]+this.options.scrollSensitivity)){speed[1]=pointer[1]-(p[1]+this.options.scrollSensitivity)}if(pointer[0]>(p[2]-this.options.scrollSensitivity)){speed[0]=pointer[0]-(p[2]-this.options.scrollSensitivity)}if(pointer[1]>(p[3]-this.options.scrollSensitivity)){speed[1]=pointer[1]-(p[3]-this.options.scrollSensitivity)}this.startScrolling(speed)}if(Prototype.Browser.WebKit){window.scrollBy(0,0)}Event.stop(event)},finishDrag:function(B,E){this.dragging=false;if(this.options.quiet){Position.prepare();var D=[Event.pointerX(B),Event.pointerY(B)];Droppables.show(D,this.element)}if(this.options.ghosting){if(!this.element._originallyAbsolute){Position.relativize(this.element)}delete this.element._originallyAbsolute;Element.remove(this._clone);this._clone=null}var F=false;if(E){F=Droppables.fire(B,this.element);if(!F){F=false}}if(F&&this.options.onDropped){this.options.onDropped(this.element)}Draggables.notify("onEnd",this,B);var A=this.options.revert;if(A&&Object.isFunction(A)){A=A(this.element)}var C=this.currentDelta();if(A&&this.options.reverteffect){if(F==0||A!="failure"){this.options.reverteffect(this.element,C[1]-this.delta[1],C[0]-this.delta[0])}}else{this.delta=C}if(this.options.zindex){this.element.style.zIndex=this.originalZ}if(this.options.endeffect){this.options.endeffect(this.element)}Draggables.deactivate(this);Droppables.reset()},keyPress:function(A){if(A.keyCode!=Event.KEY_ESC){return }this.finishDrag(A,false);Event.stop(A)},endDrag:function(A){if(!this.dragging){return }this.stopScrolling();this.finishDrag(A,true);Event.stop(A)},draw:function(A){var F=Position.cumulativeOffset(this.element);if(this.options.ghosting){var C=Position.realOffset(this.element);F[0]+=C[0]-Position.deltaX;F[1]+=C[1]-Position.deltaY}var E=this.currentDelta();F[0]-=E[0];F[1]-=E[1];if(this.options.scroll&&(this.options.scroll!=window&&this._isScrollChild)){F[0]-=this.options.scroll.scrollLeft-this.originalScrollLeft;F[1]-=this.options.scroll.scrollTop-this.originalScrollTop}var D=[0,1].map(function(G){return(A[G]-F[G]-this.offset[G])}.bind(this));if(this.options.snap){if(Object.isFunction(this.options.snap)){D=this.options.snap(D[0],D[1],this)}else{if(Object.isArray(this.options.snap)){D=D.map(function(G,H){return(G/this.options.snap[H]).round()*this.options.snap[H]}.bind(this))}else{D=D.map(function(G){return(G/this.options.snap).round()*this.options.snap}.bind(this))}}}var B=this.element.style;if((!this.options.constraint)||(this.options.constraint=="horizontal")){B.left=D[0]+"px"}if((!this.options.constraint)||(this.options.constraint=="vertical")){B.top=D[1]+"px"}if(B.visibility=="hidden"){B.visibility=""}},stopScrolling:function(){if(this.scrollInterval){clearInterval(this.scrollInterval);this.scrollInterval=null;Draggables._lastScrollPointer=null}},startScrolling:function(A){if(!(A[0]||A[1])){return }this.scrollSpeed=[A[0]*this.options.scrollSpeed,A[1]*this.options.scrollSpeed];this.lastScrolled=new Date();this.scrollInterval=setInterval(this.scroll.bind(this),10)},scroll:function(){var current=new Date();var delta=current-this.lastScrolled;this.lastScrolled=current;if(this.options.scroll==window){with(this._getWindowScroll(this.options.scroll)){if(this.scrollSpeed[0]||this.scrollSpeed[1]){var d=delta/1000;this.options.scroll.scrollTo(left+d*this.scrollSpeed[0],top+d*this.scrollSpeed[1])}}}else{this.options.scroll.scrollLeft+=this.scrollSpeed[0]*delta/1000;this.options.scroll.scrollTop+=this.scrollSpeed[1]*delta/1000}Position.prepare();Droppables.show(Draggables._lastPointer,this.element);Draggables.notify("onDrag",this);if(this._isScrollChild){Draggables._lastScrollPointer=Draggables._lastScrollPointer||$A(Draggables._lastPointer);Draggables._lastScrollPointer[0]+=this.scrollSpeed[0]*delta/1000;Draggables._lastScrollPointer[1]+=this.scrollSpeed[1]*delta/1000;if(Draggables._lastScrollPointer[0]<0){Draggables._lastScrollPointer[0]=0}if(Draggables._lastScrollPointer[1]<0){Draggables._lastScrollPointer[1]=0}this.draw(Draggables._lastScrollPointer)}if(this.options.change){this.options.change(this)}},_getWindowScroll:function(w){var T,L,W,H;with(w.document){if(w.document.documentElement&&documentElement.scrollTop){T=documentElement.scrollTop;L=documentElement.scrollLeft}else{if(w.document.body){T=body.scrollTop;L=body.scrollLeft}}if(w.innerWidth){W=w.innerWidth;H=w.innerHeight}else{if(w.document.documentElement&&documentElement.clientWidth){W=documentElement.clientWidth;H=documentElement.clientHeight}else{W=body.offsetWidth;H=body.offsetHeight}}}return{top:T,left:L,width:W,height:H}}});Draggable._dragging={};var SortableObserver=Class.create({initialize:function(B,A){this.element=$(B);this.observer=A;this.lastValue=Sortable.serialize(this.element)},onStart:function(){this.lastValue=Sortable.serialize(this.element)},onEnd:function(){Sortable.unmark();if(this.lastValue!=Sortable.serialize(this.element)){this.observer(this.element)}}});var Sortable={SERIALIZE_RULE:/^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,sortables:{},_findRootElement:function(A){while(A.tagName.toUpperCase()!="BODY"){if(A.id&&Sortable.sortables[A.id]){return A}A=A.parentNode}},options:function(A){A=Sortable._findRootElement($(A));if(!A){return }return Sortable.sortables[A.id]},destroy:function(A){var B=Sortable.options(A);if(B){Draggables.removeObserver(B.element);B.droppables.each(function(C){Droppables.remove(C)});B.draggables.invoke("destroy");delete Sortable.sortables[B.element.id]}},create:function(C){C=$(C);var B=Object.extend({element:C,tag:"li",dropOnEmpty:false,tree:false,treeTag:"ul",overlap:"vertical",constraint:"vertical",containment:C,handle:false,only:false,delay:0,hoverclass:null,ghosting:false,quiet:false,scroll:false,scrollSensitivity:20,scrollSpeed:15,format:this.SERIALIZE_RULE,elements:false,handles:false,onChange:Prototype.emptyFunction,onUpdate:Prototype.emptyFunction,dropMarker:"dropmarker"},arguments[1]||{});this.destroy(C);var A={revert:true,quiet:B.quiet,scroll:B.scroll,scrollSpeed:B.scrollSpeed,scrollSensitivity:B.scrollSensitivity,delay:B.delay,ghosting:B.ghosting,constraint:B.constraint,handle:B.handle,dropMarker:B.dropMarker};if(B.starteffect){A.starteffect=B.starteffect}if(B.reverteffect){A.reverteffect=B.reverteffect}else{if(B.ghosting){A.reverteffect=function(F){F.style.top=0;F.style.left=0}}}if(B.endeffect){A.endeffect=B.endeffect}if(B.zindex){A.zindex=B.zindex}var D={overlap:B.overlap,containment:B.containment,tree:B.tree,hoverclass:B.hoverclass,onHover:Sortable.onHover};var E={onHover:Sortable.onEmptyHover,overlap:B.overlap,containment:B.containment,hoverclass:B.hoverclass};Element.cleanWhitespace(C);B.draggables=[];B.droppables=[];if(B.dropOnEmpty||B.tree){Droppables.add(C,E);B.droppables.push(C)}(B.elements||this.findElements(C,B)||[]).each(function(H,F){var G=B.handles?$(B.handles[F]):(B.handle?$(H).select("."+B.handle)[0]:H);B.draggables.push(new Draggable(H,Object.extend(A,{handle:G})));Droppables.add(H,D);if(B.tree){H.treeNode=C}B.droppables.push(H)});if(B.tree){(Sortable.findTreeElements(C,B)||[]).each(function(F){Droppables.add(F,E);F.treeNode=C;B.droppables.push(F)})}this.sortables[C.id]=B;Draggables.addObserver(new SortableObserver(C,B.onUpdate))},findElements:function(B,A){return Element.findChildren(B,A.only,A.tree?true:false,A.tag)},findTreeElements:function(B,A){return Element.findChildren(B,A.only,A.tree?true:false,A.treeTag)},onHover:function(E,D,A){if(Element.isParent(D,E)){return }if(A>0.33&&A<0.66&&Sortable.options(D).tree){return }else{if(A>0.5){Sortable.mark(D,"before");if(D.previousSibling!=E){var B=E.parentNode;E.style.visibility="hidden";D.parentNode.insertBefore(E,D);if(D.parentNode!=B){Sortable.options(B).onChange(E)}Sortable.options(D.parentNode).onChange(E)}}else{Sortable.mark(D,"after");var C=D.nextSibling||null;if(C!=E){var B=E.parentNode;E.style.visibility="hidden";D.parentNode.insertBefore(E,C);if(D.parentNode!=B){Sortable.options(B).onChange(E)}Sortable.options(D.parentNode).onChange(E)}}}},onEmptyHover:function(E,G,H){var I=E.parentNode;var A=Sortable.options(G);if(!Element.isParent(G,E)){var F;var C=Sortable.findElements(G,{tag:A.tag,only:A.only});var B=null;if(C){var D=Element.offsetSize(G,A.overlap)*(1-H);for(F=0;F<C.length;F+=1){if(D-Element.offsetSize(C[F],A.overlap)>=0){D-=Element.offsetSize(C[F],A.overlap)}else{if(D-(Element.offsetSize(C[F],A.overlap)/2)>=0){B=F+1<C.length?C[F+1]:null;break}else{B=C[F];break}}}}G.insertBefore(E,B);Sortable.options(I).onChange(E);A.onChange(E)}},unmark:function(){if(Sortable._marker){Sortable._marker.hide()}},mark:function(B,A){var E=Sortable.options(B.parentNode);var D=E.dropMarker;if(!Sortable._marker){Sortable._marker=($(E.dropMarker)||Element.extend(document.createElement("DIV"))).hide().addClassName(E.dropMarker).setStyle({position:"absolute"});document.getElementsByTagName("body").item(0).appendChild(Sortable._marker)}var C=Position.cumulativeOffset(B);Sortable._marker.setStyle({left:C[0]+"px",top:C[1]+"px",height:"5px",width:B.clientWidth+"px",display:""});if(A=="after"){if(E.overlap=="horizontal"){Sortable._marker.setStyle({left:(C[0]+B.clientWidth)+"px"})}else{Sortable._marker.setStyle({top:(C[1]+B.clientHeight)+"px"})}}Sortable._marker.show()},_tree:function(E,B,F){var D=Sortable.findElements(E,B)||[];for(var C=0;C<D.length;++C){var A=D[C].id.match(B.format);if(!A){continue}var G={id:encodeURIComponent(A?A[1]:null),element:E,parent:F,children:[],position:F.children.length,container:$(D[C]).down(B.treeTag)};if(G.container){this._tree(G.container,B,G)}F.children.push(G)}return F},tree:function(D){D=$(D);var C=this.options(D);var B=Object.extend({tag:C.tag,treeTag:C.treeTag,only:C.only,name:D.id,format:C.format},arguments[1]||{});var A={id:null,parent:null,children:[],container:D,position:0};return Sortable._tree(D,B,A)},_constructIndex:function(B){var A="";do{if(B.id){A="["+B.position+"]"+A}}while((B=B.parent)!=null);return A},sequence:function(B){B=$(B);var A=Object.extend(this.options(B),arguments[1]||{});return $(this.findElements(B,A)||[]).map(function(C){return C.id.match(A.format)?C.id.match(A.format)[1]:""})},setSequence:function(B,C){B=$(B);var A=Object.extend(this.options(B),arguments[2]||{});var D={};this.findElements(B,A).each(function(E){if(E.id.match(A.format)){D[E.id.match(A.format)[1]]=[E,E.parentNode]}E.parentNode.removeChild(E)});C.each(function(E){var F=D[E];if(F){F[1].appendChild(F[0]);delete D[E]}})},serialize:function(C){C=$(C);var B=Object.extend(Sortable.options(C),arguments[1]||{});var A=encodeURIComponent((arguments[1]&&arguments[1].name)?arguments[1].name:C.id);if(B.tree){return Sortable.tree(C,arguments[1]).children.map(function(D){return[A+Sortable._constructIndex(D)+"[id]="+encodeURIComponent(D.id)].concat(D.children.map(arguments.callee))}).flatten().join("&")}else{return Sortable.sequence(C,arguments[1]).map(function(D){return A+"[]="+encodeURIComponent(D)}).join("&")}}};Element.isParent=function(B,A){if(!B.parentNode||B==A){return false}if(B.parentNode==A){return true}return Element.isParent(B.parentNode,A)};Element.findChildren=function(D,B,A,C){if(!D.hasChildNodes()){return null}C=C.toUpperCase();if(B){B=[B].flatten()}var E=[];$A(D.childNodes).each(function(G){if(G.tagName&&G.tagName.toUpperCase()==C&&(!B||(Element.classNames(G).detect(function(H){return B.include(H)})))){E.push(G)}if(A){var F=Element.findChildren(G,B,A,C);if(F){E.push(F)}}});return(E.length>0?E.flatten():[])};Element.offsetSize=function(A,B){return A["offset"+((B=="vertical"||B=="height")?"Height":"Width")]}

/********************************************************************
******* widgets.js
********************************************************************/

if(typeof Draggable == 'undefined')
  throw("widgets.js requires including script.aculo.us' dragdrop.js library");

if(typeof Builder == 'undefined')
  throw("widgets.js requires including script.aculo.us' builder.js library");

// Xilinus namespace
if(typeof Xilinus == 'undefined')
  Xilinus = {}
  
Builder.dump();


Xilinus.Widget = Class.create();  
Xilinus.Widget.lastId = 0;
Xilinus.Widget.remove = function(element, options) {    
  if (options && options.afterFinish)
    options.afterFinish.call();
} 

Object.extend(Xilinus.Widget.prototype, {
  initialize: function(className, id) {
    className = className || "widget";  
    this._id   = id || ("widget_" + Xilinus.Widget.lastId++);
    
    this._titleDiv   = DIV({className: className + '_title',     id: this._getId("header")},  "");  
    this._contentDiv = DIV({className: className + '_content',   id: this._getId("content")}, "");
    this._footerDiv  = DIV({className: className + '_statusbar', id: this._getId("footer")},  "");
    
    var divHeader  = DIV({className: className + '_nw' }, this._titleDiv);
    var divContent = DIV({className: className + '_w' },  this._contentDiv); 
    var divFooter  = DIV({className: className + '_sw' }, this._footerDiv);  
    
    this._div = DIV({className: className + (className != "widget" ? " widget" : ""), id: this._getId()}, [divHeader, divContent, divFooter]);     
    this._div.widget = this;
    
    return this;
  },
  
  destroy: function() {
    this._div.remove();
  },
  
  getElement: function() {
    return $(this._getId()) || $(this._div);
  },
  
  setTitle: function(title) {
    $(this._titleDiv).update(title);
    return this;
  },

  setTitleElement: function(el) {
    $(this._titleDiv).appendChild($(el)); 
    return this;
  },

  getTitle: function(title) {
    return $(this._titleDiv)
  },
  
  setFooter: function(title) {
    $(this._footerDiv).update(title);
    return this;
  },
  
  getFooter: function(title) {
    return $(this._footerDiv)
  },
  
  setContent: function(title) {
    $(this._contentDiv).update(title);  
    return this;
  },
   
  setContentElement: function(el) {
    $(this._contentDiv).appendChild($(el)); 
    return this;
  },

  getContent: function(title) {
    return $(this._contentDiv)
  },
  
  updateHeight: function() {       
    $(this._contentDiv).setStyle({height: null})
      
    var h = $(this._contentDiv).getHeight();
    $(this._contentDiv).setStyle({height: h + "px"})
  },
  
  // PRIVATE FUNCTIONS
  _getId: function(prefix) { 
      return (prefix ? prefix + "_" : "") + this._id;
  }
});


Xilinus.Portal = Class.create()
Object.extend(Xilinus.Portal.prototype, {
  lastEvent: null,   
  widgets:   null,
  columns:   null, 
  
  initialize: function(columns, options) {   
    this.options = Object.extend({
                     url:          null,          // Url called by Ajax.Request after a drop
                     onOverWidget: null,          // Called when the mouse goes over a widget
                     onOutWidget:  null,          // Called when the mouse goes out of a widget                                           
                     onChange:     null,          // Called a widget has been move during drag and drop 
                     onUpdate:     null,          // Called a widget has been move after drag and drop
                     overclass:    null,
                     removeEffect: Xilinus.Widget.remove // Remove effect (by default no effect), you can set it to Effect.SwitchOff for example
                   }, options)
    this._columns = (typeof columns == "string") ? $$(columns) : columns;
    this._widgets = new Array();          
    this._columns.each(function(element) {Droppables.add(element, {onHover: this.onHover.bind(this), 
                                                                   overlap: "vertical", 
                                                                   accept: this.options.accept})}.bind(this));  
    this._outTimer  = null;
    
    // Draggable calls makePositioned for IE fix (??), I had to remove it for all browsers fix :) to handle properly zIndex
    this._columns.invoke("undoPositioned");    
    
    this._currentOverWidget = null; 
    this._widgetMouseOver = this.widgetMouseOver.bindAsEventListener(this);
    this._widgetMouseOut  = this.widgetMouseOut.bindAsEventListener(this);
    
    Draggables.addObserver({ onEnd: this.endDrag.bind(this), onStart: this.startDrag.bind(this) }); 
  },
  
  add: function(widget, columnIndex, draggable) {   
    draggable = typeof draggable == "undefined" ? true : draggable
    // Add to widgets list
    
    this._widgets.push(widget);
    if (this.options.accept)
      widget.getElement().addClassName(this.options.accept)
    // Add element to column
    
    this._columns[columnIndex].appendChild(widget.getElement());

    widget.updateHeight();
/*
    if (this.options.overclass!=null) {
      widget._titleDiv.onmouseover = this.hdrMouseOver.bindAsEventListener(this);
      widget._titleDiv.onmouseout  = this.hdrMouseOut.bindAsEventListener(this);
    }    */
    
    // Make header draggable   
    if (draggable) {
      widget.draggable = new Draggable(widget.getElement(),{ handle: widget._titleDiv, revert: false,
                                                                   scroll: this.options.scroll});     
      widget.getTitle().addClassName("widget_draggable");   
    }
    
    // Update columns heights
    this._updateColumnsHeight();  

    // Add mouse observers  
    if (this.options.onOverWidget)
      widget.getElement().immediateDescendants().invoke("observe", "mouseover", this._widgetMouseOver);
    if (this.options.onOutWidget)
      widget.getElement().immediateDescendants().invoke("observe", "mouseout",  this._widgetMouseOut);
      
    return widget;
  },  
  
  remove: function(widget) {
    // Remove from the list
    this._widgets.reject(function(w) { return w == widget});

    // Remove observers
    if (this.options.onOverWidget)
      widget.getElement().immediateDescendants().invoke("stopObserving", "mouseover", this._widgetMouseOver);
    if (this.options.onOutWidget)
      widget.getElement().immediateDescendants().invoke("stopObserving", "mouseout",  this._widgetMouseOut);

    // Remove draggable
    if (widget.draggable)
      widget.draggable.destroy();
      
    // Remove from the dom
    this.options.removeEffect(widget.getElement(), {afterFinish: function() {widget.destroy();}});
    
    // Update columns heights
    this._updateColumnsHeight();  
  },
    
  serialize: function() {
    parameters = ""
    this._columns.each(function(column) {   
      var p = column.immediateDescendants().collect(function(element) {
        return column.id + "[]=" + element.id
      }).join("&") 
      parameters += p + "&"
    });               
    
    return parameters;                      
  },     
  
  addWidgetControls: function(element) {
    $(element).observe("mouseover", this._widgetMouseOver); 
    $(element).observe("mouseout", this._widgetMouseOut); 
  },

  // EVENTS CALLBACKS
  
  hdrMouseOver: function(event) {
    if(document.getElementsByClassName(this.options.overclass,this.getTitle()).length==0)
      this.getTitle().addClassName(this.options.overclass);
  },
  
  hdrMouseOut: function(widget) {
    this.getTitle().removeClassName(this.options.overclass);
  },
  
  widgetMouseOver: function(event) {   
    this._clearTimer();
    var element =  Event.element(event).up(".widget");
    if (this._currentOverWidget == null || this._currentOverWidget != element) {
      if (this._currentOverWidget && this._currentOverWidget != element)
        this.options.onOutWidget(this, this._currentOverWidget.widget)    
        
      this._currentOverWidget = element;
      this.options.onOverWidget(this, element.widget)
    }
  },
  
  widgetMouseOut: function(event) {    
    this._clearTimer();
    var element =  Event.element(event).up(".widget"); 
    this._outTimer = setTimeout(this._doWidgetMouseOut.bind(this, element), 100);
  },
  
  _doWidgetMouseOut: function(element) {
    this._currentOverWidget = null;
    this.options.onOutWidget(this, element.widget)    
  },                                               
  
  // DRAGGABLE OBSERVER CALLBACKS
  startDrag: function(eventName, draggable) { 
    var widget = draggable.element;
    
    if (!this._widgets.find(function(w) {return w == widget.widget}))
      return;

    var column = widget.parentNode;
    
    // Create and insert ghost widget
    var ghost = DIV({className: 'widget_ghost'}, ""); 
    $(ghost).setStyle({height: widget.getHeight()  + 'px'})

    column.insertBefore(ghost, widget);  

    // IE Does not absolutize properly the widget, needs to set width before
    widget.setStyle({width: widget.getWidth() + "px"});
    
    // Absolutize and move widget on body
    Position.absolutize(widget);  
    document.body.appendChild(widget);   
    
    // Store ghost to drag widget for later use
    draggable.element.ghost = ghost; 
    
    // Store current position
    this._savePosition = this.serialize();    
  },   

  endDrag: function(eventName, draggable) {
    var widget = draggable.element;      
    if (!this._widgets.find(function(w) {return w == widget.widget}))
      return;
    
    var column = widget.ghost.parentNode;
    
    column.insertBefore(draggable.element, widget.ghost); 
    widget.ghost.remove();   
    
    if (Prototype.Browser.Opera)     
      widget.setStyle({top: 0, left: 0, width: "100%", height: widget._originalHeight, zIndex: null, opacity: null, position: "relative"})
    else
      widget.setStyle({top: null, left: null, width: null, height: widget._originalHeight, zIndex: null, opacity: null, position: "relative"})
    
    widget.ghost = null;    
    widget.widget.updateHeight();
    this._updateColumnsHeight();
    
    // Fire events if changed
    if (this._savePosition != this.serialize()) {
      if (this.options.url)  
        new Ajax.Request(this.options.url, {parameters: this.serialize()});
      
      if (this.options.onUpdate)
        this.options.onUpdate(this);
    }
  },

  onHover: function(dragWidget, dropon, overlap) {  
    var offset = Position.cumulativeOffset(dropon);
    var x = offset[0] + 10;
    var y = offset[1] + (1 - overlap) * dropon.getHeight();

    // Check over ghost widget
    if (Position.within(dragWidget.ghost, x, y))
      return;
      
    // Find if it's overlapping a widget
    var found = false;
    var moved = false;
    for (var index = 0, len = this._widgets.length; index < len; ++index) {
      var w = this._widgets[index].getElement();
      if (w ==  dragWidget || w.parentNode != dropon)   
        continue;        

      if (Position.within(w, x, y)) {    
        var overlap = Position.overlap( 'vertical', w);     
        // Bottom of the widget
        if (overlap < 0.5) {         
          // Check if the ghost widget is not already below this widget
          if (w.next() != dragWidget.ghost) {
            w.parentNode.insertBefore(dragWidget.ghost, w.next());   
            moved = true;
          }
        } 
        // Top of the widget
        else {       
          // Check if the ghost widget is not already above this widget
          if (w.previous() != dragWidget.ghost) {      
            w.parentNode.insertBefore(dragWidget.ghost, w);   
            moved = true;
          }
        }
        found = true;
        break;
      }
    }
    // Not found a widget
    if (! found) {        
      // Check if dropon has ghost widget
      if (dragWidget.ghost.parentNode != dropon) {
        // Get last widget bottom value
        var last = dropon.immediateDescendants().last();
        var yLast = last ? Position.cumulativeOffset(last)[1] + last.getHeight() : 0; 
        if (y > yLast && last != dragWidget.ghost) {
          dropon.appendChild(dragWidget.ghost);
          moved = true;
        }
      }
    }  
    if (moved && this.options.onChange) 
      this.options.onChange(this)            

    this._updateColumnsHeight();
  },                
  
  // PRIVATE FUNCTIONS
  _updateColumnsHeight: function() {      
    var h = 0;
    this._columns.each(function(col) {
      h = Math.max(h, col.immediateDescendants().inject(0, function(sum, element) { 
        return sum + element.getHeight(); 
      }));
    })
    this._columns.invoke("setStyle", {height: h + 'px'})
  },
  
  _clearTimer: function() {
    if (this._outTimer) {
      clearTimeout(this._outTimer);
      this._outTimer = null;
    }                        
  }
});     


/********************************************************************
******* dhtmlwindow.js
********************************************************************/

var WINFILES_PATH = "/js/dhtmlwindow/"

var dhtmlwindow={

imagefiles:[WINFILES_PATH+'min.gif', WINFILES_PATH+'close.gif', WINFILES_PATH+'restore.gif', WINFILES_PATH+'resize.gif'], //Path to 4 images used by script, in that order
ajaxbustcache: true, //Bust caching when fetching a file via Ajax?
ajaxloadinghtml: '<b>Loading Page. Please wait...</b>', //HTML to show while window fetches Ajax Content?

minimizeorder: 0,
zIndexvalue:100,
tobjects: [], //object to contain references to dhtml window divs, for cleanup purposes
lastactivet: {}, //reference to last active DHTML window

init:function(t){
    
  var domwindow=document.createElement("div") //create dhtml window div
  domwindow.id=t
  domwindow.className="dhtmlwindow"
  var domwindowdata=''
  domwindowdata='<div class="drag-handle">'
  domwindowdata+='DHTML Window <div class="drag-controls"><img src="'+this.imagefiles[0]+'" title="Minimize" /><img src="'+this.imagefiles[1]+'" title="Close" /></div>'
  domwindowdata+='</div>'
  domwindowdata+='<div class="drag-contentarea"></div>'
  domwindowdata+='<div class="drag-statusarea"><div class="drag-resizearea" style="background: transparent url('+this.imagefiles[3]+') top right no-repeat;">&nbsp;</div></div>'
  domwindowdata+='</div>'
  domwindow.innerHTML=domwindowdata
  document.getElementById("dhtmlwindowholder").appendChild(domwindow)
  //this.zIndexvalue=(this.zIndexvalue)? this.zIndexvalue+1 : 100 //z-index value for DHTML window: starts at 0, increments whenever a window has focus
  var t=document.getElementById(t)
  var divs=t.getElementsByTagName("div")
  for (var i=0; i<divs.length; i++){ //go through divs inside dhtml window and extract all those with class="drag-" prefix
    if (/drag-/.test(divs[i].className))
      t[divs[i].className.replace(/drag-/, "")]=divs[i] //take out the "drag-" prefix for shorter access by name
  }
  //t.style.zIndex=this.zIndexvalue //set z-index of this dhtml window
  t.handle._parent=t //store back reference to dhtml window
  t.resizearea._parent=t //same
  t.controls._parent=t //same
  t.onclose=function(){return true} //custom event handler "onclose"
  t.onmousedown=function(){dhtmlwindow.setfocus(this)} //Increase z-index of window when focus is on it
  t.handle.onmousedown=dhtmlwindow.setupdrag //set up drag behavior when mouse down on handle div
  t.resizearea.onmousedown=dhtmlwindow.setupdrag //set up drag behavior when mouse down on resize div
  t.onafteresize=function(){return} //custom event handler "onafteresize"
  t.controls.onclick=dhtmlwindow.enablecontrols
  t.show=function(){dhtmlwindow.show(this)} //public function for showing dhtml window
  t.hide=function(){dhtmlwindow.hide(this)} //public function for hiding dhtml window
  t.close=function(){dhtmlwindow.close(this)} //public function for closing dhtml window (also empties DHTML window content)
  t.setSize=function(w, h){dhtmlwindow.setSize(this, w, h)} //public function for setting window dimensions
  t.moveTo=function(x, y){dhtmlwindow.moveTo(this, x, y)} //public function for moving dhtml window (relative to viewpoint)
  t.isResize=function(bol){dhtmlwindow.isResize(this, bol)} //public function for specifying if window is resizable
  t.isScrolling=function(bol){dhtmlwindow.isScrolling(this, bol)} //public function for specifying if window content contains scrollbars
  t.load=function(contenttype, contentsource, title){dhtmlwindow.load(this, contenttype, contentsource, title)} //public function for loading content into window
  this.tobjects[this.tobjects.length]=t
  return t //return reference to dhtml window div
},

open:function(t, contenttype, contentsource, title, attr, recalonload){
  var d=dhtmlwindow //reference dhtml window object
  function getValue(Name){
    var config=new RegExp(Name+"=([^,]+)", "i") //get name/value config pair (ie: width=400px,)
    return (config.test(attr))? parseInt(RegExp.$1) : 0 //return value portion (int), or 0 (false) if none found
  }
  if (document.getElementById(t)==null) //if window doesn't exist yet, create it
    t=this.init(t) //return reference to dhtml window div
  else
    t=document.getElementById(t)
  this.setfocus(t)
  t.setSize(getValue(("width")), (getValue("height"))) //Set dimensions of window
  var xpos=getValue("center")? "middle" : getValue("left") //Get x coord of window
  var ypos=getValue("center")? "middle" : getValue("top") //Get y coord of window
  //t.moveTo(xpos, ypos) //Position window
  if (typeof recalonload!="undefined" && recalonload=="recal" && this.scroll_top==0){ //reposition window when page fully loads with updated window viewpoints?
    if (window.attachEvent && !window.opera) //In IE, add another 400 milisecs on page load (viewpoint properties may return 0 b4 then)
      this.addEvent(window, function(){setTimeout(function(){t.moveTo(xpos, ypos)}, 400)}, "load")
    else
      this.addEvent(window, function(){t.moveTo(xpos, ypos)}, "load")
  }
  t.isResize(getValue("resize")) //Set whether window is resizable
  t.isScrolling(getValue("scrolling")) //Set whether window should contain scrollbars
  t.style.visibility="visible"
  t.style.display="block"
  t.contentarea.style.display="block"
  t.moveTo(xpos, ypos) //Position window
  t.load(contenttype, contentsource, title)
  if (t.state=="minimized" && t.controls.firstChild.title=="Restore"){ //If window exists and is currently minimized?
    t.controls.firstChild.setAttribute("src", dhtmlwindow.imagefiles[0]) //Change "restore" icon within window interface to "minimize" icon
    t.controls.firstChild.setAttribute("title", "Minimize")
    t.state="fullview" //indicate the state of the window as being "fullview"
  }
  return t
},

setSize:function(t, w, h){ //set window size (min is 150px wide by 100px tall)
  t.style.width=Math.max(parseInt(w), 150)+"px"
  t.contentarea.style.height=Math.max(parseInt(h), 100)+"px"
},

moveTo:function(t, x, y){ //move window. Position includes current viewpoint of document
  this.getviewpoint() //Get current viewpoint numbers
  t.style.left=(x=="middle")? this.scroll_left+(this.docwidth-t.offsetWidth)/2+"px" : this.scroll_left+parseInt(x)+"px"
  t.style.top=(y=="middle")? this.scroll_top+(this.docheight-t.offsetHeight)/2+"px" : this.scroll_top+parseInt(y)+"px"
},

isResize:function(t, bol){ //show or hide resize inteface (part of the status bar)
  t.statusarea.style.display=(bol)? "block" : "none"
  t.resizeBool=(bol)? 1 : 0
},

isScrolling:function(t, bol){ //set whether loaded content contains scrollbars
  t.contentarea.style.overflow=(bol)? "auto" : "hidden"
},

load:function(t, contenttype, contentsource, title){ //loads content into window plus set its title (3 content types: "inline", "iframe", or "ajax")
  if (t.isClosed){
    alert("DHTML Window has been closed, so no window to load contents into. Open/Create the window again.")
    return
  }
  var contenttype=contenttype.toLowerCase() //convert string to lower case
  if (typeof title!="undefined")
    t.handle.firstChild.nodeValue=title
  if (contenttype=="inline")
    t.contentarea.innerHTML=contentsource
  else if (contenttype=="div"){
    var inlinedivref=document.getElementById(contentsource)
    t.contentarea.innerHTML=(inlinedivref.defaultHTML || inlinedivref.innerHTML) //Populate window with contents of inline div on page
    if (!inlinedivref.defaultHTML)
      inlinedivref.defaultHTML=inlinedivref.innerHTML //save HTML within inline DIV
    inlinedivref.innerHTML="" //then, remove HTML within inline DIV (to prevent duplicate IDs, NAME attributes etc in contents of DHTML window
    inlinedivref.style.display="none" //hide that div
  }
  else if (contenttype=="iframe"){
    t.contentarea.style.overflow="hidden" //disable window scrollbars, as iframe already contains scrollbars
    if (!t.contentarea.firstChild || t.contentarea.firstChild.tagName!="IFRAME") //If iframe tag doesn't exist already, create it first
      t.contentarea.innerHTML='<iframe src="" style="border:0; margin:0; padding:0; width:100%; height: 100%" name="_iframe-'+t.id+'"></iframe>'
    window.frames["_iframe-"+t.id].location.replace(contentsource) //set location of iframe window to specified URL
    }
  else if (contenttype=="ajax"){
    this.ajax_connect(contentsource, t) //populate window with external contents fetched via Ajax
  }
  t.contentarea.datatype=contenttype //store contenttype of current window for future reference
},

setupdrag:function(e){
  var d=dhtmlwindow //reference dhtml window object
  var t=this._parent //reference dhtml window div
  d.etarget=this //remember div mouse is currently held down on ("handle" or "resize" div)
  var e=window.event || e
  d.initmousex=e.clientX //store x position of mouse onmousedown
  d.initmousey=e.clientY
  d.initx=parseInt(t.offsetLeft) //store offset x of window div onmousedown
  d.inity=parseInt(t.offsetTop)
  d.width=parseInt(t.offsetWidth) //store width of window div
  d.contentheight=parseInt(t.contentarea.offsetHeight) //store height of window div's content div
  if (t.contentarea.datatype=="iframe"){ //if content of this window div is "iframe"
    t.style.backgroundColor="#F8F8F8" //colorize and hide content div (while window is being dragged)
    t.contentarea.style.visibility="hidden"
  }
  document.onmousemove=d.getdistance //get distance travelled by mouse as it moves
  document.onmouseup=function(){
    if (t.contentarea.datatype=="iframe"){ //restore color and visibility of content div onmouseup
      t.contentarea.style.backgroundColor="white"
      t.contentarea.style.visibility="visible"
    }
    d.stop()
    t.onafteresize();
  }
  return false
},

onafteresize:function(){
},

getdistance:function(e){
  var d=dhtmlwindow
  var etarget=d.etarget
  var e=window.event || e
  d.distancex=e.clientX-d.initmousex //horizontal distance travelled relative to starting point
  d.distancey=e.clientY-d.initmousey
  if (etarget.className=="drag-handle") //if target element is "handle" div
    d.move(etarget._parent, e)
  else if (etarget.className=="drag-resizearea") //if target element is "resize" div
    d.resize(etarget._parent, e)
  return false //cancel default dragging behavior
},

getviewpoint:function(){ //get window viewpoint numbers
  var ie=document.all && !window.opera
  var domclientWidth=document.documentElement && parseInt(document.documentElement.clientWidth) || 100000 //Preliminary doc width in non IE browsers
  this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
  this.scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset
  this.scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset
  this.docwidth=(ie)? this.standardbody.clientWidth : (/Safari/i.test(navigator.userAgent))? window.innerWidth : Math.min(domclientWidth, window.innerWidth-16)
  this.docheight=(ie)? this.standardbody.clientHeight: window.innerHeight
},

rememberattrs:function(t){ //remember certain attributes of the window when it's minimized or closed, such as dimensions, position on page
  this.getviewpoint() //Get current window viewpoint numbers
  t.lastx=parseInt((t.style.left || t.offsetLeft))-dhtmlwindow.scroll_left //store last known x coord of window just before minimizing
  t.lasty=parseInt((t.style.top || t.offsetTop))-dhtmlwindow.scroll_top
  t.lastwidth=parseInt(t.style.width) //store last known width of window just before minimizing/ closing
},

move:function(t, e){
  t.style.left=dhtmlwindow.distancex+dhtmlwindow.initx+"px"
  t.style.top=dhtmlwindow.distancey+dhtmlwindow.inity+"px"
},

resize:function(t, e){
  t.style.width=Math.max(dhtmlwindow.width+dhtmlwindow.distancex, 150)+"px"
  t.contentarea.style.height=Math.max(dhtmlwindow.contentheight+dhtmlwindow.distancey, 100)+"px"
},

enablecontrols:function(e){
  var d=dhtmlwindow
  var sourceobj=window.event? window.event.srcElement : e.target //Get element within "handle" div mouse is currently on (the controls)
  if (/Minimize/i.test(sourceobj.getAttribute("title"))) //if this is the "minimize" control
    d.minimize(sourceobj, this._parent)
  else if (/Restore/i.test(sourceobj.getAttribute("title"))) //if this is the "restore" control
    d.restore(sourceobj, this._parent)
  else if (/Close/i.test(sourceobj.getAttribute("title"))) //if this is the "close" control
    d.close(this._parent)
  return false
},

minimize:function(button, t){
  dhtmlwindow.rememberattrs(t)
  button.setAttribute("src", dhtmlwindow.imagefiles[2])
  button.setAttribute("title", "Restore")
  t.state="minimized" //indicate the state of the window as being "minimized"
  t.contentarea.style.display="none"
  t.statusarea.style.display="none"
  if (typeof t.minimizeorder=="undefined"){ //stack order of minmized window on screen relative to any other minimized windows
    dhtmlwindow.minimizeorder++ //increment order
    t.minimizeorder=dhtmlwindow.minimizeorder
  }
  t.style.left="10px" //left coord of minmized window
  t.style.width="200px"
  var windowspacing=t.minimizeorder*10 //spacing (gap) between each minmized window(s)
  t.style.top=dhtmlwindow.scroll_top+dhtmlwindow.docheight-(t.handle.offsetHeight*t.minimizeorder)-windowspacing+"px"
},

restore:function(button, t){
  dhtmlwindow.getviewpoint()
  button.setAttribute("src", dhtmlwindow.imagefiles[0])
  button.setAttribute("title", "Minimize")
  t.state="fullview" //indicate the state of the window as being "fullview"
  t.style.display="block"
  t.contentarea.style.display="block"
  if (t.resizeBool) //if this window is resizable, enable the resize icon
    t.statusarea.style.display="block"
  t.style.left=parseInt(t.lastx)+dhtmlwindow.scroll_left+"px" //position window to last known x coord just before minimizing
  t.style.top=parseInt(t.lasty)+dhtmlwindow.scroll_top+"px"
  t.style.width=parseInt(t.lastwidth)+"px"
},


close:function(t){
  try{
    var closewinbol=t.onclose()
  }
  catch(err){ //In non IE browsers, all errors are caught, so just run the below
    var closewinbol=true
 }
  finally{ //In IE, not all errors are caught, so check if variable isn't defined in IE in those cases
    if (typeof closewinbol=="undefined"){
      alert("An error has occured somwhere inside your \"onclose\" event handler")
      var closewinbol=true
    }
  }
  if (closewinbol){ //if custom event handler function returns true
    if (t.state!="minimized") //if this window isn't currently minimized
      dhtmlwindow.rememberattrs(t) //remember window's dimensions/position on the page before closing
    if (window.frames["_iframe-"+t.id]) //if this is an IFRAME DHTML window
      window.frames["_iframe-"+t.id].location.replace("about:blank")
    else
      t.contentarea.innerHTML=""
    t.style.display="none"
    t.isClosed=true //tell script this window is closed (for detection in t.show())
  }
  return closewinbol
},


setopacity:function(targetobject, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
  if (!targetobject)
    return
  if (targetobject.filters && targetobject.filters[0]){ //IE syntax
    if (typeof targetobject.filters[0].opacity=="number") //IE6
      targetobject.filters[0].opacity=value*100
    else //IE 5.5
      targetobject.style.filter="alpha(opacity="+value*100+")"
    }
  else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
    targetobject.style.MozOpacity=value
  else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
    targetobject.style.opacity=value
},

setfocus:function(t){ //Sets focus to the currently active window
  this.zIndexvalue++
  t.style.zIndex=this.zIndexvalue
  t.isClosed=false //tell script this window isn't closed (for detection in t.show())
  this.setopacity(this.lastactivet.handle, 0.5) //unfocus last active window
  this.setopacity(t.handle, 1) //focus currently active window
  this.lastactivet=t //remember last active window
},


show:function(t){
  if (t.isClosed){
    alert("DHTML Window has been closed, so nothing to show. Open/Create the window again.")
    return
  }
  if (t.lastx) //If there exists previously stored information such as last x position on window attributes (meaning it's been minimized or closed)
    dhtmlwindow.restore(t.controls.firstChild, t) //restore the window using that info
  else
    t.style.display="block"
  this.setfocus(t)
  t.state="fullview" //indicate the state of the window as being "fullview"
},

hide:function(t){
  t.style.display="none"
},

ajax_connect:function(url, t){
  var page_request = false
  var bustcacheparameter=""
  if (window.XMLHttpRequest) // if Mozilla, IE7, Safari etc
    page_request = new XMLHttpRequest()
  else if (window.ActiveXObject){ // if IE6 or below
    try {
    page_request = new ActiveXObject("Msxml2.XMLHTTP")
    } 
    catch (e){
      try{
      page_request = new ActiveXObject("Microsoft.XMLHTTP")
      }
      catch (e){}
    }
  }
  else
    return false
  t.contentarea.innerHTML=this.ajaxloadinghtml
  page_request.onreadystatechange=function(){dhtmlwindow.ajax_loadpage(page_request, t)}
  if (this.ajaxbustcache) //if bust caching of external page
    bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
  page_request.open('GET', url+bustcacheparameter, true)
  page_request.send(null)
},

ajax_loadpage:function(page_request, t){
  if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
  t.contentarea.innerHTML=page_request.responseText
  }
},


stop:function(){
  dhtmlwindow.etarget=null //clean up
  document.onmousemove=null
  document.onmouseup=null
},

addEvent:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
  var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
  if (target.addEventListener)
    target.addEventListener(tasktype, functionref, false)
  else if (target.attachEvent)
    target.attachEvent(tasktype, functionref)
},


cleanup:function(){
  for (var i=0; i<dhtmlwindow.tobjects.length; i++){
    dhtmlwindow.tobjects[i].handle._parent=dhtmlwindow.tobjects[i].resizearea._parent=dhtmlwindow.tobjects[i].controls._parent=null
  }
  window.onload=null
},

fill:function(t, content){
  t.contentarea.innerHTML = content;
}

} //End dhtmlwindow object

document.write('<div id="dhtmlwindowholder"><span style="display:none">.</span></div>') //container that holds all dhtml window divs on page
window.onunload=dhtmlwindow.cleanup


/********************************************************************
******* popup.js
********************************************************************/

/*********************************************************
*  PopUp control                 ************************
*  by Kozyuck Alexander, c 2008   ************************
*  kolexander@gmail.com           ************************
*********************************************************/

var Popup = Class.create();

Popup.prototype = {

  initialize: function(parameters) {

    this.parameters = parameters;
    
    if(!$(this.parameters.id)) {
      this.popup = document.createElement('div');
      this.popup.id = this.parameters.id;
      document.body.appendChild(this.popup);
      
      var hgt = parseInt(this.parameters.style.height)-20;
      
      if(typeof this.parameters.contOverflow == 'undefined') {
        this.parameters.contOverflow = 'none';
      }
      
      $(this.popup).update('<table cellspacing="1" cellpadding="1" style="width:'+this.parameters.style.width+';height:'+this.parameters.style.height+'">\
      <tr><td class="popup-title">'+this.parameters.title+'</td><td height="16" align="right"><img id="'+this.popup.id+'_close" src="/images/btn_popup_close.png" width="13" height="11" class="but-img"/></td></tr>\
      <tr><td colspan="2"><div id="'+this.popup.id+'_cont" style="position:relative;margin-left:0px;border-top:solid 1px #AAAAAA;border-right:solid 1px #EEEEEE;border-bottom:solid 1px #EEEEEE;border-left:solid 1px #AAAAAA;background-color:#FAFAFA;width:100%;height:'+hgt+'px;overflow:'+this.parameters.contOverflow+'"></div></td></tr>\
      </table>'); // style="padding: 0px 0px 0px 0px"
    } else {
      this.popup = $(this.parameters.id);
      //if(this.popup.style.dislay == 'none')
      this.popup.toggle(); 
    }
    
    this.setProperties(this.parameters.style, this.popup.style);
    
    
    if(typeof this.parameters.content != 'undefined') {
      this.updateContent(this.parameters.content);
    }
   
    if(typeof this.parameters.ajaxUrl != 'undefined') {
      this.updateFromUrl(this.parameters.ajaxUrl);
    }

    if(typeof this.parameters.className != 'undefined')
    this.popup.className = this.parameters.className;
    
    Event.observe($(this.parameters.id+'_close'), "click", function(event) { 
      var el = Event.findElement(event, 'DIV');
      if (el != document) {
        $(el).hide();
      }
    });
//    this.popup.show();
  },
  
  setProperties: function(parameters,where) {
    for(param in parameters) {
      if(typeof parameters[param] == 'number')
        eval('where.'+param+' = ' + parameters[param]);
      else
        eval('where.'+param+' = "' + parameters[param] + '"');
    }
  },
  
  updateContent: function(cont) {
    if(cont != null && typeof cont != 'undefined') {
      $(cont).show();
      $(this.parameters.id+'_cont').update($(cont));
    }
  },
  
  updateFromUrl: function(url) {
    if(url != null && typeof url != 'undefined') {
      new Ajax.Updater($(this.parameters.id+'_cont'), url,{
        method: "get",
        onComplete: this.ajaxUrlResponse.bind(this),
        onFailure: this.ajaxUrlReportError.bind(this)()
      }
      );
    }
  },
  
  ajaxUrlResponse: function() {
  },

  ajaxUrlReportError: function() {
  }

}


/********************************************************************
******* pageoptions.js
********************************************************************/

var curlang = 'ru';
var curl = '/'+curlang+'/pageoptions/';


function updateCitiesInfo(cookie,cookies){

  pp.popup.toggle();

  setCookie(cookie, $('city_0').rowid);
  setCookie(cookies, $('city_add1').rowid + ',' + $('city_add2').rowid + ',' +
    $('city_add3').rowid + ',' + $('city_add4').rowid);
  
  window.location.reload();
  
}

function getCookieName(num){
  var ret = null;
  switch(parseFloat(num)) {
    case 2: ret = 'METEOPROG_DEFAULT_SECOND_CITY'; break;
    case 3: ret = 'METEOPROG_DEFAULT_LOCAL_RESORT'; break;
    case 4: ret = 'METEOPROG_DEFAULT_FOREIGN_RESORT'; break;
    case 5: ret = 'METEOPROG_DEFAULT_FOREIGN_CITY'; break;
  }
  return ret;
}

function getCookieNames(num){
  var ret = null;
  switch(parseFloat(num)) {
    case 2: ret = 'METEOPROG_DEFAULT_SECOND_CITIES'; break;
    case 3: ret = 'METEOPROG_DEFAULT_LOCAL_RESORTS'; break;
    case 4: ret = 'METEOPROG_DEFAULT_FOREIGN_RESORTS'; break;
    case 5: ret = 'METEOPROG_DEFAULT_FOREIGN_CITIES'; break;
  }
  return ret;
}

function updateOptsElementHandler(el) {
  
  el.value = String(el.value).replace(/(.*?)\,.*/,"$1");
  
  //
}

function getPopupCoord(event,wdt,hgt) {

  var el = Event.element(event);
  var offset = Position.cumulativeOffset(el);
  var pg = Position.page(el);
  
  return {X:offset[0] - wdt + 26, Y:offset[1] + 21};
  
}

function setDefaultTab(numblock) {
//  var numblock = $('nboptions').numblock;
  var section = $('def_tab').value;
  setCookie('METEOPROG_NB_TAB_'+pagename.toUpperCase()+'_'+numblock, section);
  if(parseInt($('nb_'+numblock).activesection) != parseInt(section)) {
    pressSectionTab($('section_'+section), numblock, section);
  }
  eval('pp'+numblock+'.popup.hide()');
}

function setActiveOption(numblock) {
  var activesection = getCookie('METEOPROG_NB_TAB_'+pagename.toUpperCase()+'_'+numblock);
  if(activesection != null)
    $('def_tab').value = activesection;
}

/********************************************************************
******* page.js
********************************************************************/

var ajaxSectionTabExecuting = false;
var lastBN = null;
var autocompleter_search = null;

function initSearchAutoCompleter() {

  autocompleter_search = new Ajax.Autocompleter(
    'search',
    'search_auto_complete',
    getAutoCompleteUrl(), {
      afterUpdateElement : updateSearchElementHandler,
      frequency: 1
    }
  );
  
}

function getSearchType() {
//  var radio = searchform.elements['search_what'];
  var radio = $('searchform').elements['search_what'];
  var what = 'cities';
  what = (radio[0].checked)?radio[0].value:radio[1].value;
  what = (radio[1].checked)?radio[1].value:radio[0].value;
  
  return what;
}

function getAutoCompleteUrl() {
  var method = getSearchType();
  
  method = (method == 'country') ? 'countries' : 'cities';

  return '/'+curlang+'/search/'+method+'/';
}

function setAutoCompleteUrl() {

  autocompleter_search.url = getAutoCompleteUrl();
}


function updateSearchElementHandler() {
  
  var s = $('search');
  
  s.value = String(s.value).replace(/(.*?)\,.*/,"$1");
  
  searchform.elements['submit'].click();

}

function onBeforeSubmitHandler() {
  
  if($('search').value.length > 0) {
    return true;
  } else
    return false;
}

function onBeforeSubmitHandler2() {
  
  if($('search2').value.length > 0) {
    return true;
  } else
    return false;
}

/*
<iframe id="nb_<?=$numblock?>_iframe" src="/<?=getLangDir()?>/sections/<?=$section_id?>" width="100%" height="<?=(int)$block[0]['bp_height']-10?>" frameborder="0" scrolling="no"></iframe>
*/

//нажатие кнопки секции (закладки) блока новостей
function pressSectionTab(nbtab, numblock, section, hgt) {
  if(ajaxSectionTabExecuting) return;
  
  nbtabs = nbtab.parentNode.parentNode;
  
  var points = document.getElementsByClassName('active',nbtabs);
  if(points.length > 0)
    points[0].removeClassName('active');
    
  nbtab.parentNode.className = 'active';

//  $('nb_'+numblock+'_iframe').src = '/'+curlang+'/sections/'+section+'/';
  if(typeof hgt == 'undefined') var hgt = '100px';

  /*  
  if(typeof $('nb_'+numblock+'_iframe') == 'undefined' || $('nb_'+numblock+'_iframe') == null) {

  alert(1);  
    if(BrowserDetect.browser == 'Opera') {
alert(2);  
        $('nb_'+numblock+'_cont').innerHTML = '<iframe id="nb_'+numblock+'_iframe" marginheight="0" marginwidth="0" src="" width="100%" height="'+hgt+'" frameborder="0" scrolling="no"></iframe>';
        var ifr = document.createElement('iframe');
        ifr.setAttribute('id') = 'nb_'+numblock+'_iframe';
        ifr.setAttribute('marginwidh') = 0;
        ifr.setAttribute('marginheight') = 0;
        ifr.setAttribute('src') = 'nb_'+numblock+'_iframe';
        $('nb_'+numblock+'_cont').appendChild(ifr); 
    } else {
        $('nb_'+numblock+'_cont').update('<iframe id="nb_'+numblock+'_iframe" marginheight="0" marginwidth="0" src="" width="100%" height="'+hgt+'" frameborder="0" scrolling="no"></iframe>');
    }
  }
  $('nb_'+numblock+'_iframe').src = site_root+curlang+'/sections/'+section;
  
*/
  if(BrowserDetect.browser != 'Explorer') {
    $('nb_'+numblock+'_cont').update('<iframe id="nb_'+numblock+'_iframe" marginheight="0" marginwidth="0" src="'+
      site_root+curlang+'/sections/'+section
       +'" width="100%" height="'+hgt+'" frameborder="0" scrolling="no"></iframe>');
  } else {
    $('nb_'+numblock+'_iframe').src = site_root+curlang+'/sections/'+section;
  }
  $('nb_'+numblock).activesection = section;
  
}

function hdrOver(block){
  $(block.id).addClassName('clrsltbg');//block-hdr-over
}

function hdrOut(block){
  $(block.id).removeClassName('clrsltbg');//block-hdr-over
}

//обработка блоков
function serialize(cont,cls) {
  var params = "";

  var blocks = $(cont);
  for(var i=0; i<blocks.childNodes.length; i++) {
    var node = blocks.childNodes[i];
    for(var j=0; j<node.childNodes.length; j++) {
      var points = node.childNodes[j].getElementsByClassName(cls);
//      var points = document.getElementsByClassName(cls, node.childNodes[j]);
      if(points.length>0)
        params += 'block[]=' + points[0].id + '&';
    }
  }  
//status = params;
  return params;
}

function removeWidget(element) {
  var widget = $(element).up(".widget").widget;

  if (confirm('Are sure to remove this widget?')) { 
    document.body.appendChild($('control_buttons').hide())
    portal.remove(widget);
  }
}                                

function doWidget(portal, block){
  try {
    var hdr = $(block).getElementsByClassName('block-hdr')[0];
    portal.add(new Xilinus.Widget().setTitleElement(hdr).setContentElement(block), 0); 
  } catch(e) {
  }
}

function onChangeNews() {
  var ser = serialize('newsblocks','blocknews');
  setCookie("METEOPROG_BLOCKS_NEWS_"+pagename.toUpperCase(), ser);
}

function doRightBlockWidgets(){

  portal2 = new Xilinus.Portal("#newsblocks div", {onUpdate: onChangeNews}); 

  var seq = getCookie("METEOPROG_BLOCKS_NEWS"); 

  try {  
    for(var $i=1;$i<=10;$i++) {  
      doWidget(portal2, 'nb_'+$i);
    }
  }catch(e){}
    
  return;  

}

function minimizeBlock(but,blockid) {

  $(blockid+'_cont').hide();

}


function showBlockOptions(event) {

  winBlockOptions = dhtmlwindow.open('winBlockOptions', 'inline', '12345 вышел зайчик погулять !!!', 'Test', 'width=350px,height=100px,left='+Event.pointerX(event)+'px,top='+Event.pointerY(event)+ 'px,resize=0,scrolling=0', 'recal');

  return;
}

function onFocusEdit(edt) {
  if(edt.value == _strings.input_name) {
    edt.value = '';
  }
  $(edt).removeClassName('mpinput-hint');
}

function onBlurEdit(edt) {
  if(edt.value == '') {
    edt.value = _strings.input_name;
    $(edt).addClassName('mpinput-hint');
  } else {
    $(edt).removeClassName('mpinput-hint');
  }
}

function initCommon() {
  if(typeof isPagePrint == 'undefined' || isPagePrint == false) {
    doRightBlockOptions();
//    doRightBlockWidgets();
    initSearchAutoCompleter();
    try{bindPressSectionTabs();}catch(e){}
  }
}