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

var Prototype = {
  Version: '1.6.0.2',

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

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

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

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

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


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

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

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

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

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

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

    klass.prototype.constructor = klass;

    return klass;
  }
};

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

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

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

    return this;
  }
};

var Abstract = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return returnValue;
  }
};

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

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

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

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

    this.registerCallback();
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return camelized;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

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

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

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

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

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

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

    this.parameters = params;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

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

  getHeader: Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

    $super(url, options);
  },

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

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

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

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

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

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

    this.start();
  },

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

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

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

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

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

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

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

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

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

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

Element.cache = { };

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

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

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

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

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

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

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

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

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

    var content, insert, tagName, childNodes;

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

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

      content = Object.toHTML(content);

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

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

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

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

    return element;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return element;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return $(document.body);
  },

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

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

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

    } while (element = element.offsetParent);

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

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

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

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

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

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

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

Element.Methods.identify.counter = 1;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  Element._attributeTranslations.has = {};

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

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

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

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

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

    return element;
  };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

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

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

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

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

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

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

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

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    var e = this.expression;

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

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

    return true;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return match;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return matchingInputs;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  cache: { },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      return element;
    },

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

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

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

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

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

      destroyWrapper(id, eventName, handler);

      return element;
    },

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

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

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

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

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

Object.extend(Event, Event.Methods);

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

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

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

  var timer;

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

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

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

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

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

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

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

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

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.addMethods();

// script.aculo.us effects.js v1.8.0, Tue Nov 06 15:01:40 +0300 2007

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  return styleRules;
};

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

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

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

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

Element.addMethods(Effect.Methods);


// script.aculo.us controls.js v1.8.0, Tue Nov 06 15:01:40 +0300 2007

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

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

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

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

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

    this.options.paramName    = this.options.paramName || this.element.name;
    this.options.tokens       = this.options.tokens || [];
    this.options.frequency    = this.options.frequency || 0.3;
    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, setWidth: false,
            offsetTop: element.offsetHeight
          });
        }
        Effect.Appear(update,{duration:0.15});
      };
    this.options.onHide = this.options.onHide || 
      function(element, update){ new Effect.Fade(update,{duration:0.15}) };

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

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

    Element.hide(this.update);

    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
    Event.observe(this.element, (Prototype.Browser.IE) ? 'keydown' : 'keypress', this.onKeyPress.bindAsEventListener(this));
  },

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

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

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

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

  onKeyPress: function(event) {
    if(this.active)
      switch(event.keyCode) {
       case Event.KEY_RETURN:
         this.selectEntry();
         Event.stop(event);
       case Event.KEY_TAB:
       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();
         if(Prototype.Browser.WebKit) Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         if(Prototype.Browser.WebKit) Event.stop(event);
         return;
       default:
        this.index = -1;
      }
     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(false);
//    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);
//    this.getEntry(this.index).scrollIntoView(false);
  },
  
  getEntry: function(index) {
    return this.update.firstChild.childNodes[index];
  },
  
  getCurrentEntry: function() {
    return this.getEntry(this.index);
  },
  
  selectEntry: function() {
    this.active = false;
    this.updateElement(this.getCurrentEntry());
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

//Ajax.InPlaceEditor = Class.create({
//  initialize: function(element, url, options) {
//    this.url = url;
//    this.element = element = $(element);
//    this.prepareOptions();
//    this._controls = { };
//    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
//    Object.extend(this.options, options || { });
//    if (!this.options.formId && this.element.id) {
//      this.options.formId = this.element.id + '-inplaceeditor';
//      if ($(this.options.formId))
//        this.options.formId = '';
//    }
//    if (this.options.externalControl)
//      this.options.externalControl = $(this.options.externalControl);
//    if (!this.options.externalControl)
//      this.options.externalControlOnly = false;
//    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
//    this.element.title = this.options.clickToEditText;
//    this._boundCancelHandler = this.handleFormCancellation.bind(this);
//    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
//    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
//    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
//    this._boundWrapperHandler = this.wrapUp.bind(this);
//    this.registerListeners();
//  },
//  checkForEscapeOrReturn: function(e) {
//    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
//    if (Event.KEY_ESC == e.keyCode)
//      this.handleFormCancellation(e);
//    else if (Event.KEY_RETURN == e.keyCode)
//      this.handleFormSubmission(e);
//  },
//  createControl: function(mode, handler, extraClasses) {
//    var control = this.options[mode + 'Control'];
//    var text = this.options[mode + 'Text'];
//    if ('button' == control) {
//      var btn = document.createElement('input');
//      btn.type = 'submit';
//      btn.value = text;
//      btn.className = 'editor_' + mode + '_button';
//      if ('cancel' == mode)
//        btn.onclick = this._boundCancelHandler;
//      this._form.appendChild(btn);
//      this._controls[mode] = btn;
//    } else if ('link' == control) {
//      var link = document.createElement('a');
//      link.href = '#';
//      link.appendChild(document.createTextNode(text));
//      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
//      link.className = 'editor_' + mode + '_link';
//      if (extraClasses)
//        link.className += ' ' + extraClasses;
//      this._form.appendChild(link);
//      this._controls[mode] = link;
//    }
//  },
//  createEditField: function() {
//    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
//    var fld;
//    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
//      fld = document.createElement('input');
//      fld.type = 'text';
//      var size = this.options.size || this.options.cols || 0;
//      if (0 < size) fld.size = size;
//    } else {
//      fld = document.createElement('textarea');
//      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
//      fld.cols = this.options.cols || 40;
//    }
//    fld.name = this.options.paramName;
//    fld.value = text; // No HTML breaks conversion anymore
//    fld.className = 'editor_field';
//    if (this.options.submitOnBlur)
//      fld.onblur = this._boundSubmitHandler;
//    this._controls.editor = fld;
//    if (this.options.loadTextURL)
//      this.loadExternalText();
//    this._form.appendChild(this._controls.editor);
//  },
//  createForm: function() {
//    var ipe = this;
//    function addText(mode, condition) {
//      var text = ipe.options['text' + mode + 'Controls'];
//      if (!text || condition === false) return;
//      ipe._form.appendChild(document.createTextNode(text));
//    };
//    this._form = $(document.createElement('form'));
//    this._form.id = this.options.formId;
//    this._form.addClassName(this.options.formClassName);
//    this._form.onsubmit = this._boundSubmitHandler;
//    this.createEditField();
//    if ('textarea' == this._controls.editor.tagName.toLowerCase())
//      this._form.appendChild(document.createElement('br'));
//    if (this.options.onFormCustomization)
//      this.options.onFormCustomization(this, this._form);
//    addText('Before', this.options.okControl || this.options.cancelControl);
//    this.createControl('ok', this._boundSubmitHandler);
//    addText('Between', this.options.okControl && this.options.cancelControl);
//    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
//    addText('After', this.options.okControl || this.options.cancelControl);
//  },
//  destroy: function() {
//    if (this._oldInnerHTML)
//      this.element.innerHTML = this._oldInnerHTML;
//    this.leaveEditMode();
//    this.unregisterListeners();
//  },
//  enterEditMode: function(e) {
//    if (this._saving || this._editing) return;
//    this._editing = true;
//    this.triggerCallback('onEnterEditMode');
//    if (this.options.externalControl)
//      this.options.externalControl.hide();
//    this.element.hide();
//    this.createForm();
//    this.element.parentNode.insertBefore(this._form, this.element);
//    if (!this.options.loadTextURL)
//      this.postProcessEditField();
//    if (e) Event.stop(e);
//  },
//  enterHover: function(e) {
//    if (this.options.hoverClassName)
//      this.element.addClassName(this.options.hoverClassName);
//    if (this._saving) return;
//    this.triggerCallback('onEnterHover');
//  },
//  getText: function() {
//    return this.element.innerHTML;
//  },
//  handleAJAXFailure: function(transport) {
//    this.triggerCallback('onFailure', transport);
//    if (this._oldInnerHTML) {
//      this.element.innerHTML = this._oldInnerHTML;
//      this._oldInnerHTML = null;
//    }
//  },
//  handleFormCancellation: function(e) {
//    this.wrapUp();
//    if (e) Event.stop(e);
//  },
//  handleFormSubmission: function(e) {
//    var form = this._form;
//    var value = $F(this._controls.editor);
//    this.prepareSubmission();
//    var params = this.options.callback(form, value) || '';
//    if (Object.isString(params))
//      params = params.toQueryParams();
//    params.editorId = this.element.id;
//    if (this.options.htmlResponse) {
//      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
//      Object.extend(options, {
//        parameters: params,
//        onComplete: this._boundWrapperHandler,
//        onFailure: this._boundFailureHandler
//      });
//      new Ajax.Updater({ success: this.element }, this.url, options);
//    } else {
//      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
//      Object.extend(options, {
//        parameters: params,
//        onComplete: this._boundWrapperHandler,
//        onFailure: this._boundFailureHandler
//      });
//      new Ajax.Request(this.url, options);
//    }
//    if (e) Event.stop(e);
//  },
//  leaveEditMode: function() {
//    this.element.removeClassName(this.options.savingClassName);
//    this.removeForm();
//    this.leaveHover();
//    this.element.style.backgroundColor = this._originalBackground;
//    this.element.show();
//    if (this.options.externalControl)
//      this.options.externalControl.show();
//    this._saving = false;
//    this._editing = false;
//    this._oldInnerHTML = null;
//    this.triggerCallback('onLeaveEditMode');
//  },
//  leaveHover: function(e) {
//    if (this.options.hoverClassName)
//      this.element.removeClassName(this.options.hoverClassName);
//    if (this._saving) return;
//    this.triggerCallback('onLeaveHover');
//  },
//  loadExternalText: function() {
//    this._form.addClassName(this.options.loadingClassName);
//    this._controls.editor.disabled = true;
//    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
//    Object.extend(options, {
//      parameters: 'editorId=' + encodeURIComponent(this.element.id),
//      onComplete: Prototype.emptyFunction,
//      onSuccess: function(transport) {
//        this._form.removeClassName(this.options.loadingClassName);
//        var text = transport.responseText;
//        if (this.options.stripLoadedTextTags)
//          text = text.stripTags();
//        this._controls.editor.value = text;
//        this._controls.editor.disabled = false;
//        this.postProcessEditField();
//      }.bind(this),
//      onFailure: this._boundFailureHandler
//    });
//    new Ajax.Request(this.options.loadTextURL, options);
//  },
//  postProcessEditField: function() {
//    var fpc = this.options.fieldPostCreation;
//    if (fpc)
//      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
//  },
//  prepareOptions: function() {
//    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
//    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
//    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
//      Object.extend(this.options, defs);
//    }.bind(this));
//  },
//  prepareSubmission: function() {
//    this._saving = true;
//    this.removeForm();
//    this.leaveHover();
//    this.showSaving();
//  },
//  registerListeners: function() {
//    this._listeners = { };
//    var listener;
//    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
//      listener = this[pair.value].bind(this);
//      this._listeners[pair.key] = listener;
//      if (!this.options.externalControlOnly)
//        this.element.observe(pair.key, listener);
//      if (this.options.externalControl)
//        this.options.externalControl.observe(pair.key, listener);
//    }.bind(this));
//  },
//  removeForm: function() {
//    if (!this._form) return;
//    this._form.remove();
//    this._form = null;
//    this._controls = { };
//  },
//  showSaving: function() {
//    this._oldInnerHTML = this.element.innerHTML;
//    this.element.innerHTML = this.options.savingText;
//    this.element.addClassName(this.options.savingClassName);
//    this.element.style.backgroundColor = this._originalBackground;
//    this.element.show();
//  },
//  triggerCallback: function(cbName, arg) {
//    if ('function' == typeof this.options[cbName]) {
//      this.options[cbName](this, arg);
//    }
//  },
//  unregisterListeners: function() {
//    $H(this._listeners).each(function(pair) {
//      if (!this.options.externalControlOnly)
//        this.element.stopObserving(pair.key, pair.value);
//      if (this.options.externalControl)
//        this.options.externalControl.stopObserving(pair.key, pair.value);
//    }.bind(this));
//  },
//  wrapUp: function(transport) {
//    this.leaveEditMode();
//    // Can't use triggerCallback due to backward compatibility: requires
//    // binding + direct element
//    this._boundComplete(transport, this.element);
//  }
//});
//
//Object.extend(Ajax.InPlaceEditor.prototype, {
//  dispose: Ajax.InPlaceEditor.prototype.destroy
//});
//
//Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
//  initialize: function($super, element, url, options) {
//    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
//    $super(element, url, options);
//  },
//
//  createEditField: function() {
//    var list = document.createElement('select');
//    list.name = this.options.paramName;
//    list.size = 1;
//    this._controls.editor = list;
//    this._collection = this.options.collection || [];
//    if (this.options.loadCollectionURL)
//      this.loadCollection();
//    else
//      this.checkForExternalText();
//    this._form.appendChild(this._controls.editor);
//  },
//
//  loadCollection: function() {
//    this._form.addClassName(this.options.loadingClassName);
//    this.showLoadingText(this.options.loadingCollectionText);
//    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
//    Object.extend(options, {
//      parameters: 'editorId=' + encodeURIComponent(this.element.id),
//      onComplete: Prototype.emptyFunction,
//      onSuccess: function(transport) {
//        var js = transport.responseText.strip();
//        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
//          throw 'Server returned an invalid collection representation.';
//        this._collection = eval(js);
//        this.checkForExternalText();
//      }.bind(this),
//      onFailure: this.onFailure
//    });
//    new Ajax.Request(this.options.loadCollectionURL, options);
//  },
//
//  showLoadingText: function(text) {
//    this._controls.editor.disabled = true;
//    var tempOption = this._controls.editor.firstChild;
//    if (!tempOption) {
//      tempOption = document.createElement('option');
//      tempOption.value = '';
//      this._controls.editor.appendChild(tempOption);
//      tempOption.selected = true;
//    }
//    tempOption.update((text || '').stripScripts().stripTags());
//  },
//
//  checkForExternalText: function() {
//    this._text = this.getText();
//    if (this.options.loadTextURL)
//      this.loadExternalText();
//    else
//      this.buildOptionList();
//  },
//
//  loadExternalText: function() {
//    this.showLoadingText(this.options.loadingText);
//    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
//    Object.extend(options, {
//      parameters: 'editorId=' + encodeURIComponent(this.element.id),
//      onComplete: Prototype.emptyFunction,
//      onSuccess: function(transport) {
//        this._text = transport.responseText.strip();
//        this.buildOptionList();
//      }.bind(this),
//      onFailure: this.onFailure
//    });
//    new Ajax.Request(this.options.loadTextURL, options);
//  },
//
//  buildOptionList: function() {
//    this._form.removeClassName(this.options.loadingClassName);
//    this._collection = this._collection.map(function(entry) {
//      return 2 === entry.length ? entry : [entry, entry].flatten();
//    });
//    var marker = ('value' in this.options) ? this.options.value : this._text;
//    var textFound = this._collection.any(function(entry) {
//      return entry[0] == marker;
//    }.bind(this));
//    this._controls.editor.update('');
//    var option;
//    this._collection.each(function(entry, index) {
//      option = document.createElement('option');
//      option.value = entry[0];
//      option.selected = textFound ? entry[0] == marker : 0 == index;
//      option.appendChild(document.createTextNode(entry[1]));
//      this._controls.editor.appendChild(option);
//    }.bind(this));
//    this._controls.editor.disabled = false;
//    Field.scrollFreeActivate(this._controls.editor);
//  }
//});
//
////**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
////**** This only  exists for a while,  in order to  let ****
////**** users adapt to  the new API.  Read up on the new ****
////**** API and convert your code to it ASAP!            ****
//
//Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
//  if (!options) return;
//  function fallback(name, expr) {
//    if (name in options || expr === undefined) return;
//    options[name] = expr;
//  };
//  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
//    options.cancelLink == options.cancelButton == false ? false : undefined)));
//  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
//    options.okLink == options.okButton == false ? false : undefined)));
//  fallback('highlightColor', options.highlightcolor);
//  fallback('highlightEndColor', options.highlightendcolor);
//};
//
//Object.extend(Ajax.InPlaceEditor, {
//  DefaultOptions: {
//    ajaxOptions: { },
//    autoRows: 3,                                // Use when multi-line w/ rows == 1
//    cancelControl: 'link',                      // 'link'|'button'|false
//    cancelText: 'cancel',
//    clickToEditText: 'Click to edit',
//    externalControl: null,                      // id|elt
//    externalControlOnly: false,
//    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
//    formClassName: 'inplaceeditor-form',
//    formId: null,                               // id|elt
//    highlightColor: '#ffff99',
//    highlightEndColor: '#ffffff',
//    hoverClassName: '',
//    htmlResponse: true,
//    loadingClassName: 'inplaceeditor-loading',
//    loadingText: 'Loading...',
//    okControl: 'button',                        // 'link'|'button'|false
//    okText: 'ok',
//    paramName: 'value',
//    rows: 1,                                    // If 1 and multi-line, uses autoRows
//    savingClassName: 'inplaceeditor-saving',
//    savingText: 'Saving...',
//    size: 0,
//    stripLoadedTextTags: false,
//    submitOnBlur: false,
//    textAfterControls: '',
//    textBeforeControls: '',
//    textBetweenControls: ''
//  },
//  DefaultCallbacks: {
//    callback: function(form) {
//      return Form.serialize(form);
//    },
//    onComplete: function(transport, element) {
//      // For backward compatibility, this one is bound to the IPE, and passes
//      // the element directly.  It was too often customized, so we don't break it.
//      new Effect.Highlight(element, {
//        startcolor: this.options.highlightColor, keepBackgroundImage: true });
//    },
//    onEnterEditMode: null,
//    onEnterHover: function(ipe) {
//      ipe.element.style.backgroundColor = ipe.options.highlightColor;
//      if (ipe._effect)
//        ipe._effect.cancel();
//    },
//    onFailure: function(transport, ipe) {
//      alert('Error communication with the server: ' + transport.responseText.stripTags());
//    },
//    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
//    onLeaveEditMode: null,
//    onLeaveHover: function(ipe) {
//      ipe._effect = new Effect.Highlight(ipe.element, {
//        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
//        restorecolor: ipe._originalBackground, keepBackgroundImage: true
//      });
//    }
//  },
//  Listeners: {
//    click: 'enterEditMode',
//    keydown: 'checkForEscapeOrReturn',
//    mouseover: 'enterHover',
//    mouseout: 'leaveHover'
//  }
//});
//
//Ajax.InPlaceCollectionEditor.DefaultOptions = {
//  loadingCollectionText: 'Loading options...'
//};

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

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


//  Prototip 1.3.4 - 01-05-2008
//  Copyright (c) 2008 Nick Stakenburg (http://www.nickstakenburg.com)
//
//  Licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License
//  http://creativecommons.org/licenses/by-nc-nd/3.0/

//  More information on this project:
//  http://www.nickstakenburg.com/projects/prototip/

var Prototip = {
  Version: '1.3.4'
};

var Tips = {
  options: {
    className: 'default',      // default class for all tips
	closeButtons: false,       // true | false
	zIndex: 6000               // raise if required
  }
};

eval(function(p,a,c,k,e,r){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)r[e(c)]=k[c]||e(c);k=[function(e){return r[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('q.1A(S,{3O:"1.6.0.2",3N:"1.8.1",2L:c(){5.27("23");i.22();r.14(2k,"2j",5.2j)},27:c(A){b((3s 2k[A]=="3q")||(5.2h(2k[A].3i)<5.2h(5["2W"+A]))){39("35 49 "+A+" >= "+5["2W"+A]);}},2h:c(A){f B=A.3Y(/2Y.*|\\./g,"");B=3R(B+"0".3Q(4-B.1W));p A.3H("2Y")>-1?B-1:B},1J:c(A){b(!23.2R.2P){A=A.1R(c(E,D){f C=q.2e(5)?5:5.e,B=D.3o;b(B!=C&&!$A(C.2O("*")).3k(B)){E(D)}})}p A},1z:c(B){B=$(B);f A=B.3h(),C=[],E=[];A.1v(B);A.1V(c(F){b(F!=B&&F.s()){p}C.1v(F);E.1v({1s:F.1r("1s"),1c:F.1r("1c"),X:F.1r("X")});F.j({1s:"45",1c:"42",X:"s"})});f D={v:B.3X,u:B.3T};C.1V(c(G,F){G.j(E[F])});p 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F){b((H[J]+K[F[J]]-M[J])>I[F[J]]){H[J]=H[J]-K[F[J]]-2*5.9.17[J=="T"?"x":"y"]}}}H={10:H.10+"1G",T:H.T+"1G"};5.h.j(H);b(5.k){5.k.j(H)}b(i.13){5.11.j(H)}}b(5.9.U){5.o.j({X:D,1s:E})}}});S.2L();',62,258,'|||||this||||options||if|function||element|var||wrapper|Tips|setStyle|loader|show|target|hide|effectWrapper|return|Object|Element|visible|showOn|height|width||||new||||||||||||||title|hook|className|tooltip|false|Prototip|top|effect|ajax|insert|visibility|tips|zIndex|left|iframeShim|bind|fixIE|observe|div||offset|closeButton|delay|clearTimer|mouseout|position|remove|stopObserving|bindAsEventListener|mouseover|content|eventToggle|hideTargets|hideAfter|hideOn|else|toolbar|queue|fixed|useEvent|getStyle|display|break|case|push|true|invoke|Effect|getHiddenDimensions|extend|auto|tip|mouseleave|activeEffect|document|px|update|showDelayed|capture|ajaxContentLoading|mouseenter|duration|viewport|pointerY|pointerX|eventPosition|wrap|eventCheckDelay|Event|prototip|each|length|for|mousemove|none|click|zIndexTop|initialize|Prototype|afterHide|build|removeVisible|require|ajaxContentLoaded|cancelHideAfter|activityEnter|raise|highest|hideElement|isElement|eventShow|body|convertVersionString|activityLeave|unload|window|scope|onComplete|cumulativeOffset|null|isString|fire|event|clone|shown|afterFinish|get|Queues|Timer|ajaxPointer|bottomLeft|addVisibile|buttonEvent|Action|On|toggle|eventHide|without|hidden|both|deactivate|clear|start|add|close|select|IE|showAjax|Browser|activate|identify|setup|arguments|REQUIRED_|removeAll|_|getScrollOffsets|PAIRS|in|hideAfterTimer|curry|beforeStart|Lightview|cumulativeScrollOffset|appear|clearTimeout|throw|url|Request|Ajax|ajaxTimer|loaderTimer|responseText|topLeft|ancestors|Version|blur|member|findElement|stop|include|relatedTarget|capitalize|undefined|100|typeof|find|prototipLoader|userAgent|hideAction|href|navigator|opacity|frameBorder|parseFloat|javascript|src|exec|iframe|MSIE|indexOf|RegExp|limit|end|Scriptaculous|emptyFunction|REQUIRED_Scriptaculous|REQUIRED_Prototype|showTimer|times|parseInt|closeButtons|clientHeight|create|Class|Tip|clientWidth|replace|leftMiddle|bottomMiddle|bottomRight|absolute|rightMiddle|topMiddle|block|topRight|switch|getDimensions|requires'.split('|'),0,{}));

/*
*
* Copyright (c) 2007 Andrew Tetlaw & Millstream Web Software
* http://www.millstream.com.au/view/code/tablekit/
* Version: 1.2.1 2007-03-11
* 
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* * 
*/

// Use the TableKit class constructure if you'd prefer to init your tables as JS objects
var TableKit = Class.create();

TableKit.prototype = {
	initialize : function(elm, options) {
		var table = $(elm);
		if(table.tagName !== "TABLE") {
			return;
		}
		TableKit.register(table,Object.extend(TableKit.options,options || {}));
		this.id = table.id;
		var op = TableKit.option('sortable resizable editable', this.id);
		if(op.sortable) {
			TableKit.Sortable.init(table);
		} 
		if(op.resizable) {
			TableKit.Resizable.init(table);
		}
		if(op.editable) {
			TableKit.Editable.init(table);
		}
	},
	sort : function(column, order) {
		TableKit.Sortable.sort(this.id, column, order);
	},
	resizeColumn : function(column, w) {
		TableKit.Resizable.resize(this.id, column, w);
	},
	editCell : function(row, column) {
		TableKit.Editable.editCell(this.id, row, column);
	}
};

Object.extend(TableKit, {
	getBodyRows : function(table) {
		table = $(table);
		var id = table.id;
		if(!TableKit.rows[id]) {
			TableKit.rows[id] = (table.tHead && table.tHead.rows.length > 0) ? $A(table.tBodies[0].rows) : $A(table.rows).without(table.rows[0]);
		}
		return TableKit.rows[id];
	},
	getHeaderCells : function(table, cell) {
		if(!table) { table = $(cell).up('table'); }
		var id = table.id;
		if(!TableKit.heads[id]) {
			TableKit.heads[id] = $A((table.tHead && table.tHead.rows.length > 0) ? table.tHead.rows[table.tHead.rows.length-1].cells : table.rows[0].cells);
		}
		return TableKit.heads[id];
	},
	getCellIndex : function(cell) {
		return $A(cell.parentNode.cells).indexOf(cell);
	},
	getRowIndex : function(row) {
		return $A(row.parentNode.rows).indexOf(row);
	},
	getCellText : function(cell, refresh) {
		if(!cell) { return ""; }
		TableKit.registerCell(cell);
		var data = TableKit.cells[cell.id];
		if(refresh || data.refresh || !data.textContent) {
			data.textContent = cell.textContent ? cell.textContent : cell.innerText;
			data.refresh = false;
		}
		return data.textContent;
	},
	register : function(table, options) {
		if(!table.id) {
			TableKit._tblcount += 1;
			table.id = "tablekit-table-" + TableKit._tblcount;
		}
		var id = table.id;
		TableKit.tables[id] = TableKit.tables[id] ? Object.extend(TableKit.tables[id], options || {}) : Object.extend({sortable:false,resizable:false,editable:false}, options || {});
	},
	registerCell : function(cell) {
		if(!cell.id) {
			TableKit._cellcount += 1;
			cell.id = "tablekit-cell-" + TableKit._cellcount;
		}
		if(!TableKit.cells[cell.id]) {
			TableKit.cells[cell.id] = {textContent : '', htmlContent : '', active : false};
		}
	},
	isSortable : function(table) {
		return TableKit.tables[table.id] ? TableKit.tables[table.id].sortable : false;
	},
	isResizable : function(table) {
		return TableKit.tables[table.id] ? TableKit.tables[table.id].resizable : false;
	},
	isEditable : function(table) {
		return TableKit.tables[table.id] ? TableKit.tables[table.id].editable : false;
	},
	setup : function(o) {
		Object.extend(TableKit.options, o || {} );
	},
	option : function(s, id, o1, o2) {
		o1 = o1 || TableKit.options;
		o2 = o2 || (id ? (TableKit.tables[id] ? TableKit.tables[id] : {}) : {});
		var key = id + s;
		if(!TableKit._opcache[key]){
			TableKit._opcache[key] = $A($w(s)).inject([],function(a,v){
				a.push(a[v] = o2[v] || o1[v]);
				return a;
			});
		}
		return TableKit._opcache[key];
	},
	e : function(event) {
		return event || window.event;
	},
	tables : {},
	_opcache : {},
	cells : {},
	rows : {},
	heads : {},
	options : {
		autoLoad : true,
		stripe : true,
		sortable : true,
		resizable : true,
		editable : true,
		rowEvenClass : 'roweven',
		rowOddClass : 'rowodd',
		sortableSelector : ['table.sortable'],
		columnClass : 'sortcol',
		descendingClass : 'sortdesc',
		ascendingClass : 'sortasc',
		noSortClass : 'nosort',
		sortFirstAscendingClass : 'sortfirstasc',
		sortFirstDecendingClass : 'sortfirstdesc',
		resizableSelector : ['table.resizable'],
		minWidth : 10,
		showHandle : true,
		resizeOnHandleClass : 'resize-handle-active',
		editableSelector : ['table.editable'],
		formClassName : 'editable-cell-form',
		noEditClass : 'noedit',
		editAjaxURI : '/',
		editAjaxOptions : {}
	},
	_tblcount : 0,
	_cellcount : 0,
	load : function() {
		if(TableKit.options.autoLoad) {
			if(TableKit.options.sortable) {
				$A(TableKit.options.sortableSelector).each(function(s){
					$$(s).each(function(t) {
						TableKit.Sortable.init(t);
					});
				});
			}
			if(TableKit.options.resizable) {
				$A(TableKit.options.resizableSelector).each(function(s){
					$$(s).each(function(t) {
						TableKit.Resizable.init(t);
					});
				});
			}
			if(TableKit.options.editable) {
				$A(TableKit.options.editableSelector).each(function(s){
					$$(s).each(function(t) {
						TableKit.Editable.init(t);
					});
				});
			}
		}
	}
});

TableKit.Rows = {
	stripe : function(table) {
		var rows = TableKit.getBodyRows(table);
		rows.each(function(r,i) {
			TableKit.Rows.addStripeClass(table,r,i);
		});
	},
	addStripeClass : function(t,r,i) {
		t = t || r.up('table');
		var op = TableKit.option('rowEvenClass rowOddClass', t.id);
		var css = ((i+1)%2 === 0 ? op[0] : op[1]);
		// using prototype's assClassName/RemoveClassName was not efficient for large tables, hence:
		var cn = r.className.split(/\s+/);
		var newCn = [];
		for(var x = 0, l = cn.length; x < l; x += 1) {
			if(cn[x] !== op[0] && cn[x] !== op[1]) { newCn.push(cn[x]); }
		}
		newCn.push(css);
		r.className = newCn.join(" ");
	}
};

TableKit.Sortable = {
	init : function(elm, options){
		var table = $(elm);
		if(table.tagName !== "TABLE") {
			return;
		}
		TableKit.register(table,Object.extend(options || {},{sortable:true}));
		var sortFirst;
		var cells = TableKit.getHeaderCells(table);
		var op = TableKit.option('noSortClass columnClass sortFirstAscendingClass sortFirstDecendingClass', table.id);
		cells.each(function(c){
			c = $(c);
			if(!c.hasClassName(op.noSortClass)) {
				Event.observe(c, 'mousedown', TableKit.Sortable._sort);
				c.addClassName(op.columnClass);
				if(c.hasClassName(op.sortFirstAscendingClass) || c.hasClassName(op.sortFirstDecendingClass)) {
					sortFirst = c;
				}
			}
		});

		if(sortFirst) {
			if(sortFirst.hasClassName(op.sortFirstAscendingClass)) {
				TableKit.Sortable.sort(table, sortFirst, 1);
			} else {
				TableKit.Sortable.sort(table, sortFirst, -1);
			}
		} else { // just add row stripe classes
			TableKit.Rows.stripe(table);
		}
	},
	reload : function(table) {
		table = $(table);
		var cells = TableKit.getHeaderCells(table);
		var op = TableKit.option('noSortClass columnClass', table.id);
		cells.each(function(c){
			c = $(c);
			if(!c.hasClassName(op.noSortClass)) {
				Event.stopObserving(c, 'mousedown', TableKit.Sortable._sort);
				c.removeClassName(op.columnClass);
			}
		});
		TableKit.Sortable.init(table);
	},
	_sort : function(e) {
		if(TableKit.Resizable._onHandle) {return;}
		e = TableKit.e(e);
		Event.stop(e);
		var cell = Event.element(e);
		while(!(cell.tagName && cell.tagName.match(/td|th/gi))) {
			cell = cell.parentNode;
		}
		TableKit.Sortable.sort(null, cell);
	},
	sort : function(table, index, order) {
		var cell;
		if(typeof index === 'number') {
			if(!table || (table.tagName && table.tagName !== "TABLE")) {
				return;
			}
			table = $(table);
			index = Math.min(table.rows[0].cells.length, index);
			index = Math.max(1, index);
			index -= 1;
			cell = (table.tHead && table.tHead.rows.length > 0) ? $(table.tHead.rows[table.tHead.rows.length-1].cells[index]) : $(table.rows[0].cells[index]);
		} else {
			cell = $(index);
			table = table ? $(table) : cell.up('table');
			index = TableKit.getCellIndex(cell);
		}
		var op = TableKit.option('noSortClass descendingClass ascendingClass', table.id);
		
		if(cell.hasClassName(op.noSortClass)) {return;}	
		
		order = order ? order : (cell.hasClassName(op.descendingClass) ? 1 : -1);
		var rows = TableKit.getBodyRows(table);

		if(cell.hasClassName(op.ascendingClass) || cell.hasClassName(op.descendingClass)) {
			rows.reverse(); // if it was already sorted we just need to reverse it.
		} else {
			var datatype = TableKit.Sortable.getDataType(cell,index,table);
			var tkst = TableKit.Sortable.types;
			rows.sort(function(a,b) {
				return order * tkst[datatype].compare(TableKit.getCellText(a.cells[index]),TableKit.getCellText(b.cells[index]));
			});
		}
		var tb = table.tBodies[0];
		var tkr = TableKit.Rows;
		rows.each(function(r,i) {
			tb.appendChild(r);
			tkr.addStripeClass(table,r,i);
		});
		var hcells = TableKit.getHeaderCells(null, cell);
		$A(hcells).each(function(c,i){
			c = $(c);
			c.removeClassName(op.ascendingClass);
			c.removeClassName(op.descendingClass);
			if(index === i) {
				if(order === 1) {
					c.removeClassName(op.descendingClass);
					c.addClassName(op.ascendingClass);
				} else {
					c.removeClassName(op.ascendingClass);
					c.addClassName(op.descendingClass);
				}
			}
		});
	},
	types : {},
	detectors : [],
	addSortType : function() {
		$A(arguments).each(function(o){
			TableKit.Sortable.types[o.name] = o;
		});
	},
	getDataType : function(cell,index,table) {
		cell = $(cell);
		index = (index || index === 0) ? index : TableKit.getCellIndex(cell);
		
		var colcache = TableKit.Sortable._coltypecache;
		var cache = colcache[table.id] ? colcache[table.id] : (colcache[table.id] = {});
		
		if(!cache[index]) {
			var t = '';
			// first look for a data type id on the heading row cell
			if(cell.id && TableKit.Sortable.types[cell.id]) {
				t = cell.id;
			}
			t = cell.classNames().detect(function(n){ // then look for a data type classname on the heading row cell
				return (TableKit.Sortable.types[n]) ? true : false;
			});
			if(!t) {
				var rows = TableKit.getBodyRows(table);
				cell = rows[0].cells[index]; // grab same index cell from body row to try and match data type
				t = TableKit.Sortable.detectors.detect(
						function(d){
							return TableKit.Sortable.types[d].detect(TableKit.getCellText(cell));
						});
			}
			cache[index] = t;
		}
		return cache[index];
	},
	_coltypecache : {}
};

TableKit.Sortable.detectors = $A($w('date-iso date date-eu date-au time currency datasize number casesensitivetext text')); // setting it here because Safari complained when I did it above...

TableKit.Sortable.Type = Class.create();
TableKit.Sortable.Type.prototype = {
	initialize : function(name, options){
		this.name = name;
		options = Object.extend({
			normal : function(v){
				return v;
			},
			pattern : /.*/
		}, options || {});
		this.normal = options.normal;
		this.pattern = options.pattern;
		if(options.compare) {
			this.compare = options.compare;
		}
		if(options.detect) {
			this.detect = options.detect;
		}
	},
	compare : function(a,b){
		return TableKit.Sortable.Type.compare(this.normal(a), this.normal(b));
	},
	detect : function(v){
		return this.pattern.test(v);
	}
};

TableKit.Sortable.Type.compare = function(a,b) {
	return a < b ? -1 : a === b ? 0 : 1;
};

TableKit.Sortable.addSortType(
	new TableKit.Sortable.Type('number', {
		pattern : /^[-+]?[\d]*\.?[\d]+(?:[eE][-+]?[\d]+)?/,
		normal : function(v) {
			// This will grab the first thing that looks like a number from a string, so you can use it to order a column of various srings containing numbers.
			v = parseFloat(v.replace(/^.*?([-+]?[\d]*\.?[\d]+(?:[eE][-+]?[\d]+)?).*$/,"$1"));
			return isNaN(v) ? 0 : v;
		}}),
	new TableKit.Sortable.Type('text',{
		normal : function(v) {
			return v ? v.toLowerCase() : '';
		}}),
	new TableKit.Sortable.Type('casesensitivetext',{pattern : /^[A-Z]+$/}),
	new TableKit.Sortable.Type('datasize',{
		pattern : /^[-+]?[\d]*\.?[\d]+(?:[eE][-+]?[\d]+)?\s?[k|m|g|t]b$/i,
		normal : function(v) {
			var r = v.match(/^([-+]?[\d]*\.?[\d]+([eE][-+]?[\d]+)?)\s?([k|m|g|t]?b)?/i);
			var b = r[1] ? Number(r[1]).valueOf() : 0;
			var m = r[3] ? r[3].substr(0,1).toLowerCase() : '';
			var result = b;
			switch(m) {
				case  'k':
					result = b * 1024;
					break;
				case  'm':				
					result = b * 1024 * 1024;
					break;
				case  'g':
					result = b * 1024 * 1024 * 1024;
					break;
				case  't':
					result = b * 1024 * 1024 * 1024 * 1024;
					break;
			}
			return result;
		}}),
	new TableKit.Sortable.Type('date-au',{
		pattern : /^\d{2}\/\d{2}\/\d{4}\s?(?:\d{1,2}\:\d{2}(?:\:\d{2})?\s?[a|p]?m?)?/i,
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
			var r = v.match(/^(\d{2})\/(\d{2})\/(\d{4})\s?(?:(\d{1,2})\:(\d{2})(?:\:(\d{2}))?\s?([a|p]?m?))?/i);
			var yr_num = r[3];
			var mo_num = parseInt(r[2],10)-1;
			var day_num = r[1];
			var hr_num = r[4] ? r[4] : 0;
			if(r[7] && r[7].toLowerCase().indexOf('p') !== -1) {
				hr_num = parseInt(r[4],10) + 12;
			}
			var min_num = r[5] ? r[5] : 0;
			var sec_num = r[6] ? r[6] : 0;
			return new Date(yr_num, mo_num, day_num, hr_num, min_num, sec_num, 0).valueOf();
		}}),
	new TableKit.Sortable.Type('date-us',{
		pattern : /^\d{2}\/\d{2}\/\d{4}\s?(?:\d{1,2}\:\d{2}(?:\:\d{2})?\s?[a|p]?m?)?/i,
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
			var r = v.match(/^(\d{2})\/(\d{2})\/(\d{4})\s?(?:(\d{1,2})\:(\d{2})(?:\:(\d{2}))?\s?([a|p]?m?))?/i);
			var yr_num = r[3];
			var mo_num = parseInt(r[1],10)-1;
			var day_num = r[2];
			var hr_num = r[4] ? r[4] : 0;
			if(r[7] && r[7].toLowerCase().indexOf('p') !== -1) {
				hr_num = parseInt(r[4],10) + 12;
			}
			var min_num = r[5] ? r[5] : 0;
			var sec_num = r[6] ? r[6] : 0;
			return new Date(yr_num, mo_num, day_num, hr_num, min_num, sec_num, 0).valueOf();
		}}),
	new TableKit.Sortable.Type('date-eu',{
		pattern : /^\d{2}-\d{2}-\d{4}/i,
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
			var r = v.match(/^(\d{2})-(\d{2})-(\d{4})/);
			var yr_num = r[3];
			var mo_num = parseInt(r[2],10)-1;
			var day_num = r[1];
			return new Date(yr_num, mo_num, day_num).valueOf();
		}}),
	new TableKit.Sortable.Type('date-iso',{
		pattern : /[\d]{4}-[\d]{2}-[\d]{2}(?:T[\d]{2}\:[\d]{2}(?:\:[\d]{2}(?:\.[\d]+)?)?(Z|([-+][\d]{2}:[\d]{2})?)?)?/, // 2005-03-26T19:51:34Z
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
		    var d = v.match(/([\d]{4})(-([\d]{2})(-([\d]{2})(T([\d]{2}):([\d]{2})(:([\d]{2})(\.([\d]+))?)?(Z|(([-+])([\d]{2}):([\d]{2})))?)?)?)?/);		
		    var offset = 0;
		    var date = new Date(d[1], 0, 1);
		    if (d[3]) { date.setMonth(d[3] - 1) ;}
		    if (d[5]) { date.setDate(d[5]); }
		    if (d[7]) { date.setHours(d[7]); }
		    if (d[8]) { date.setMinutes(d[8]); }
		    if (d[10]) { date.setSeconds(d[10]); }
		    if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
		    if (d[14]) {
		        offset = (Number(d[16]) * 60) + Number(d[17]);
		        offset *= ((d[15] === '-') ? 1 : -1);
		    }
		    offset -= date.getTimezoneOffset();
		    if(offset !== 0) {
		    	var time = (Number(date) + (offset * 60 * 1000));
		    	date.setTime(Number(time));
		    }
			return date.valueOf();
		}}),
	new TableKit.Sortable.Type('date',{
		pattern: /^(?:sun|mon|tue|wed|thu|fri|sat)\,\s\d{1,2}\s(?:jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\s\d{4}(?:\s\d{2}\:\d{2}(?:\:\d{2})?(?:\sGMT(?:[+-]\d{4})?)?)?/i, //Mon, 18 Dec 1995 17:28:35 GMT
		compare : function(a,b) { // must be standard javascript date format
			if(a && b) {
				return TableKit.Sortable.Type.compare(new Date(a),new Date(b));
			} else {
				return TableKit.Sortable.Type.compare(a ? 1 : 0, b ? 1 : 0);
			}
		}}),
	new TableKit.Sortable.Type('time',{
		pattern : /^\d{1,2}\:\d{2}(?:\:\d{2})?(?:\s[a|p]m)?$/i,
		compare : function(a,b) {
			var d = new Date();
			var ds = d.getMonth() + "/" + d.getDate() + "/" + d.getFullYear() + " ";
			return TableKit.Sortable.Type.compare(new Date(ds + a),new Date(ds + b));
		}}),
	new TableKit.Sortable.Type('currency',{
		pattern : /^[$£¥€¤]/, // dollar,pound,yen,euro,generic currency symbol
		normal : function(v) {
			return v ? parseFloat(v.replace(/[^-\d\.]/g,'')) : 0;
		}})
);

TableKit.Resizable = {
	init : function(elm, options){
		var table = $(elm);
		if(table.tagName !== "TABLE") {return;}
		TableKit.register(table,Object.extend(options || {},{resizable:true}));		 
		var cells = TableKit.getHeaderCells(table);
		cells.each(function(c){
			c = $(c);
			Event.observe(c, 'mouseover', TableKit.Resizable.initDetect);
			Event.observe(c, 'mouseout', TableKit.Resizable.killDetect);
		});
	},
	resize : function(table, index, w) {
		var cell;
		if(typeof index === 'number') {
			if(!table || (table.tagName && table.tagName !== "TABLE")) {return;}
			table = $(table);
			index = Math.min(table.rows[0].cells.length, index);
			index = Math.max(1, index);
			index -= 1;
			cell = (table.tHead && table.tHead.rows.length > 0) ? $(table.tHead.rows[table.tHead.rows.length-1].cells[index]) : $(table.rows[0].cells[index]);
		} else {
			cell = $(index);
			table = table ? $(table) : cell.up('table');
			index = TableKit.getCellIndex(cell);
		}
		var pad = parseInt(cell.getStyle('paddingLeft'),10) + parseInt(cell.getStyle('paddingRight'),10);
		w = Math.max(w-pad, TableKit.option('minWidth', table.id)[0]);
		
		cell.setStyle({'width' : w + 'px'});
	},
	initDetect : function(e) {
		e = TableKit.e(e);
		var cell = Event.element(e);
		Event.observe(cell, 'mousemove', TableKit.Resizable.detectHandle);
		Event.observe(cell, 'mousedown', TableKit.Resizable.startResize);
	},
	detectHandle : function(e) {
		e = TableKit.e(e);
		var cell = Event.element(e);
  		if(TableKit.Resizable.pointerPos(cell,Event.pointerX(e),Event.pointerY(e))){
  			cell.addClassName(TableKit.option('resizeOnHandleClass', cell.up('table').id)[0]);
  			TableKit.Resizable._onHandle = true;
  		} else {
  			cell.removeClassName(TableKit.option('resizeOnHandleClass', cell.up('table').id)[0]);
  			TableKit.Resizable._onHandle = false;
  		}
	},
	killDetect : function(e) {
		e = TableKit.e(e);
		TableKit.Resizable._onHandle = false;
		var cell = Event.element(e);
		Event.stopObserving(cell, 'mousemove', TableKit.Resizable.detectHandle);
		Event.stopObserving(cell, 'mousedown', TableKit.Resizable.startResize);
		cell.removeClassName(TableKit.option('resizeOnHandleClass', cell.up('table').id)[0]);
	},
	startResize : function(e) {
		e = TableKit.e(e);
		if(!TableKit.Resizable._onHandle) {return;}
		var cell = Event.element(e);
		Event.stopObserving(cell, 'mousemove', TableKit.Resizable.detectHandle);
		Event.stopObserving(cell, 'mousedown', TableKit.Resizable.startResize);
		Event.stopObserving(cell, 'mouseout', TableKit.Resizable.killDetect);
		TableKit.Resizable._cell = cell;
		var table = cell.up('table');
		TableKit.Resizable._tbl = table;
		if(TableKit.option('showHandle', table.id)[0]) {
			TableKit.Resizable._handle = $(document.createElement('div')).addClassName('resize-handle').setStyle({
				'top' : Position.cumulativeOffset(cell)[1] + 'px',
				'left' : Event.pointerX(e) + 'px',
				'height' : table.getDimensions().height + 'px'
			});
			document.body.appendChild(TableKit.Resizable._handle);
		}
		Event.observe(document, 'mousemove', TableKit.Resizable.drag);
		Event.observe(document, 'mouseup', TableKit.Resizable.endResize);
		Event.stop(e);
	},
	endResize : function(e) {
		e = TableKit.e(e);
		var cell = TableKit.Resizable._cell;
		TableKit.Resizable.resize(null, cell, (Event.pointerX(e) - Position.cumulativeOffset(cell)[0]));
		Event.stopObserving(document, 'mousemove', TableKit.Resizable.drag);
		Event.stopObserving(document, 'mouseup', TableKit.Resizable.endResize);
		if(TableKit.option('showHandle', TableKit.Resizable._tbl.id)[0]) {
			$$('div.resize-handle').each(function(elm){
				document.body.removeChild(elm);
			});
		}
		Event.observe(cell, 'mouseout', TableKit.Resizable.killDetect);
		TableKit.Resizable._tbl = TableKit.Resizable._handle = TableKit.Resizable._cell = null;
		Event.stop(e);
	},
	drag : function(e) {
		e = TableKit.e(e);
		if(TableKit.Resizable._handle === null) {
			try {
				TableKit.Resizable.resize(TableKit.Resizable._tbl, TableKit.Resizable._cell, (Event.pointerX(e) - Position.cumulativeOffset(TableKit.Resizable._cell)[0]));
			} catch(e) {}
		} else {
			TableKit.Resizable._handle.setStyle({'left' : Event.pointerX(e) + 'px'});
		}
		return false;
	},
	pointerPos : function(element, x, y) {
    	var offset = Position.cumulativeOffset(element);
	    return (y >= offset[1] &&
	            y <  offset[1] + element.offsetHeight &&
	            x >= offset[0] + element.offsetWidth - 5 &&
	            x <  offset[0] + element.offsetWidth);
  	},
	_onHandle : false,
	_cell : null,
	_tbl : null,
	_handle : null
};


TableKit.Editable = {
	init : function(elm, options){
		var table = $(elm);
		if(table.tagName !== "TABLE") {return;}
		TableKit.register(table,Object.extend(options || {},{editable:true}));
		Event.observe(table.tBodies[0], 'click', TableKit.Editable._editCell);
	},
	_editCell : function(e) {
		e = TableKit.e(e);
		var cell = Event.findElement(e,'td');
		TableKit.Editable.editCell(null, cell);
	},
	editCell : function(table, index, cindex) {
		var cell, row;
		if(typeof index === 'number') {
			if(!table || (table.tagName && table.tagName !== "TABLE")) {return;}
			table = $(table);
			index = Math.min(table.tBodies[0].rows.length, index);
			index = Math.max(1, index);
			index -= 1;
			cindex = Math.min(table.rows[0].cells.length, cindex);
			cindex = Math.max(1, cindex);
			cindex -= 1;
			row = $(table.tBodies[0].rows[index]);
			cell = $(row.cells[cindex]);
		} else {
			cell = $(index);
			table = (table && table.tagName && table.tagName !== "TABLE") ? $(table) : cell.up('table');
			row = cell.up('tr');
		}
		var op = TableKit.option('noEditClass', table.id);
		if(cell.hasClassName(op.noEditClass)) {return;}
		
		var head = $(TableKit.getHeaderCells(table, cell)[TableKit.getCellIndex(cell)]);
		if(head.hasClassName(op.noEditClass)) {return;}
		
		TableKit.registerCell(cell);
		var data = TableKit.cells[cell.id];
		if(data.active) {return;}
		data.htmlContent = cell.innerHTML;
		var ftype = TableKit.Editable.types['text-input'];
		if(head.id && TableKit.Editable.types[head.id]) {
			ftype = TableKit.Editable.types[head.id];
		} else {
			var n = head.classNames().detect(function(n){
					return (TableKit.Editable.types[n]) ? true : false;
			});
			ftype = n ? TableKit.Editable.types[n] : ftype;
		}
		ftype.edit(cell);
		data.active = true;
	},
	types : {},
	addCellEditor : function(o) {
		if(o && o.name) { TableKit.Editable.types[o.name] = o; }
	}
};

TableKit.Editable.CellEditor = Class.create();
TableKit.Editable.CellEditor.prototype = {
	initialize : function(name, options){
		this.name = name;
		this.options = Object.extend({
			element : 'input',
			attributes : {name : 'value', type : 'text'},
			selectOptions : [],
			showSubmit : true,
			submitText : 'OK',
			showCancel : true,
			cancelText : 'Cancel',
			ajaxURI : null,
			ajaxOptions : null
		}, options || {});
	},
	edit : function(cell) {
		cell = $(cell);
		var op = this.options;
		var table = cell.up('table');
		
		var form = $(document.createElement("form"));
		form.id = cell.id + '-form';
		form.addClassName(TableKit.option('formClassName', table.id)[0]);
		form.onsubmit = this._submit.bindAsEventListener(this);
		
		var field = document.createElement(op.element);
			$H(op.attributes).each(function(v){
				field[v.key] = v.value;
			});
			switch(op.element) {
				case 'input':
				case 'textarea':
				field.value = TableKit.getCellText(cell);
				break;
				
				case 'select':
				var txt = TableKit.getCellText(cell);
				$A(op.selectOptions).each(function(v){
					field.options[field.options.length] = new Option(v[0], v[1]);
					if(txt === v[1]) {
						field.options[field.options.length-1].selected = 'selected';
					}
				});
				break;
			}
			form.appendChild(field);
			if(op.element === 'textarea') {
				form.appendChild(document.createElement("br"));
			}
			if(op.showSubmit) {
				var okButton = document.createElement("input");
				okButton.type = "submit";
				okButton.value = op.submitText;
				okButton.className = 'editor_ok_button';
				form.appendChild(okButton);
			}
			if(op.showCancel) {
				var cancelLink = document.createElement("a");
				cancelLink.href = "#";
				cancelLink.appendChild(document.createTextNode(op.cancelText));
				cancelLink.onclick = this._cancel.bindAsEventListener(this);
				cancelLink.className = 'editor_cancel';      
				form.appendChild(cancelLink);
			}
			cell.innerHTML = '';
			cell.appendChild(form);
	},
	_submit : function(e) {
		var cell = Event.findElement(e,'td');
		var form = Event.findElement(e,'form');
		Event.stop(e);
		this.submit(cell,form);
	},
	submit : function(cell, form) {
		var op = this.options;
		form = form ? form : cell.down('form');
		var head = $(TableKit.getHeaderCells(null, cell)[TableKit.getCellIndex(cell)]);
		var row = cell.up('tr');
		var table = cell.up('table');
		var s = '&row=' + (TableKit.getRowIndex(row)+1) + '&cell=' + (TableKit.getCellIndex(cell)+1) + '&id=' + row.id + '&field=' + head.id + '&' + Form.serialize(form);
		this.ajax = new Ajax.Updater(cell, op.ajaxURI || TableKit.option('editAjaxURI', table.id)[0], Object.extend(op.ajaxOptions || TableKit.option('editAjaxOptions', table.id)[0], {
			postBody : s,
			onComplete : function() {
				var data = TableKit.cells[cell.id];
				data.active = false;
				data.refresh = true; // mark cell cache for refreshing, in case cell contents has changed and sorting is applied
			}
		}));
	},
	_cancel : function(e) {
		var cell = Event.findElement(e,'td');
		Event.stop(e);
		this.cancel(cell);
	},
	cancel : function(cell) {
		this.ajax = null;
		var data = TableKit.cells[cell.id];
		cell.innerHTML = data.htmlContent;
		data.htmlContent = '';
		data.active = false;
	},
	ajax : null
};

TableKit.Editable.textInput = function(n,attributes) {
	TableKit.Editable.addCellEditor(new TableKit.Editable.CellEditor(n, {
		element : 'input',
		attributes : Object.extend({name : 'value', type : 'text'}, attributes||{})
	}));
};
TableKit.Editable.textInput('text-input');

TableKit.Editable.multiLineInput = function(n,attributes) {
	TableKit.Editable.addCellEditor(new TableKit.Editable.CellEditor(n, {
		element : 'textarea',
		attributes : Object.extend({name : 'value', rows : '5', cols : '20'}, attributes||{})
	}));	
};	
TableKit.Editable.multiLineInput('multi-line-input');

TableKit.Editable.selectInput = function(n,attributes,selectOptions) {
	TableKit.Editable.addCellEditor(new TableKit.Editable.CellEditor(n, {
		element : 'select',
		attributes : Object.extend({name : 'value'}, attributes||{}),
		'selectOptions' : selectOptions
	}));	
};

/*
TableKit.Bench = {
	bench : [],
	start : function(){
		TableKit.Bench.bench[0] = new Date().getTime();
	},
	end : function(s){
		TableKit.Bench.bench[1] = new Date().getTime();
		alert(s + ' ' + ((TableKit.Bench.bench[1]-TableKit.Bench.bench[0])/1000)+' seconds.') //console.log(s + ' ' + ((TableKit.Bench.bench[1]-TableKit.Bench.bench[0])/1000)+' seconds.')
		TableKit.Bench.bench = [];
	}
} */

if(window.FastInit) {
	FastInit.addOnLoad(TableKit.load);
} else {
	Event.observe(window, 'load', TableKit.load);
}

/*  Copyright Mihai Bazon, 2002-2005  |  www.bazon.net/mishoo
 * -----------------------------------------------------------
 *
 * The DHTML Calendar, version 1.0 "It is happening again"
 *
 * Details and latest version at:
 * www.dynarch.com/projects/calendar
 *
 * This script is developed by Dynarch.com.  Visit us at www.dynarch.com.
 *
 * This script is distributed under the GNU Lesser General Public License.
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
 */

// $Id: calendar.js,v 1.51 2005/03/07 16:44:31 mishoo Exp $

/** The Calendar object constructor. */
Calendar = function (firstDayOfWeek, dateStr, onSelected, onClose) {
	// member variables
	this.activeDiv = null;
	this.currentDateEl = null;
	this.getDateStatus = null;
	this.getDateToolTip = null;
	this.getDateText = null;
	this.timeout = null;
	this.onSelected = onSelected || null;
	this.onClose = onClose || null;
	this.dragging = false;
	this.hidden = false;
	this.minYear = 1970;
	this.maxYear = 2050;
	this.dateFormat = Calendar._TT["DEF_DATE_FORMAT"];
	this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];
	this.isPopup = true;
	this.weekNumbers = true;
	this.firstDayOfWeek = typeof firstDayOfWeek == "number" ? firstDayOfWeek : Calendar._FD; // 0 for Sunday, 1 for Monday, etc.
	this.showsOtherMonths = false;
	this.dateStr = dateStr;
	this.ar_days = null;
	this.showsTime = false;
	this.time24 = true;
	this.yearStep = 2;
	this.hiliteToday = true;
	this.multiple = null;
	// HTML elements
	this.table = null;
	this.element = null;
	this.tbody = null;
	this.firstdayname = null;
	// Combo boxes
	this.monthsCombo = null;
	this.yearsCombo = null;
	this.hilitedMonth = null;
	this.activeMonth = null;
	this.hilitedYear = null;
	this.activeYear = null;
	// Information
	this.dateClicked = false;

	// one-time initializations
	if (typeof Calendar._SDN == "undefined") {
		// table of short day names
		if (typeof Calendar._SDN_len == "undefined")
			Calendar._SDN_len = 3;
		var ar = new Array();
		for (var i = 8; i > 0;) {
			ar[--i] = Calendar._DN[i].substr(0, Calendar._SDN_len);
		}
		Calendar._SDN = ar;
		// table of short month names
		if (typeof Calendar._SMN_len == "undefined")
			Calendar._SMN_len = 3;
		ar = new Array();
		for (var i = 12; i > 0;) {
			ar[--i] = Calendar._MN[i].substr(0, Calendar._SMN_len);
		}
		Calendar._SMN = ar;
	}
};

// ** constants

/// "static", needed for event handlers.
Calendar._C = null;

/// detect a special case of "web browser"
Calendar.is_ie = ( /msie/i.test(navigator.userAgent) &&
		   !/opera/i.test(navigator.userAgent) );

Calendar.is_ie5 = ( Calendar.is_ie && /msie 5\.0/i.test(navigator.userAgent) );

/// detect Opera browser
Calendar.is_opera = /opera/i.test(navigator.userAgent);

/// detect KHTML-based browsers
Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent);

// BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate
//        library, at some point.

Calendar.getAbsolutePos = function(el) {
	var SL = 0, ST = 0;
	var is_div = /^div$/i.test(el.tagName);
	if (is_div && el.scrollLeft)
		SL = el.scrollLeft;
	if (is_div && el.scrollTop)
		ST = el.scrollTop;
	var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST };
	if (el.offsetParent) {
		var tmp = this.getAbsolutePos(el.offsetParent);
		r.x += tmp.x;
		r.y += tmp.y;
	}
	return r;
};

Calendar.isRelated = function (el, evt) {
	var related = evt.relatedTarget;
	if (!related) {
		var type = evt.type;
		if (type == "mouseover") {
			related = evt.fromElement;
		} else if (type == "mouseout") {
			related = evt.toElement;
		}
	}
	while (related) {
		if (related == el) {
			return true;
		}
		related = related.parentNode;
	}
	return false;
};

Calendar.removeClass = function(el, className) {
	if (!(el && el.className)) {
		return;
	}
	var cls = el.className.split(" ");
	var ar = new Array();
	for (var i = cls.length; i > 0;) {
		if (cls[--i] != className) {
			ar[ar.length] = cls[i];
		}
	}
	el.className = ar.join(" ");
};

Calendar.addClass = function(el, className) {
	Calendar.removeClass(el, className);
	el.className += " " + className;
};

// FIXME: the following 2 functions totally suck, are useless and should be replaced immediately.
Calendar.getElement = function(ev) {
	var f = Calendar.is_ie ? window.event.srcElement : ev.currentTarget;
	while (f.nodeType != 1 || /^div$/i.test(f.tagName))
		f = f.parentNode;
	return f;
};

Calendar.getTargetElement = function(ev) {
	var f = Calendar.is_ie ? window.event.srcElement : ev.target;
	while (f.nodeType != 1)
		f = f.parentNode;
	return f;
};

Calendar.stopEvent = function(ev) {
	ev || (ev = window.event);
	if (Calendar.is_ie) {
		ev.cancelBubble = true;
		ev.returnValue = false;
	} else {
		ev.preventDefault();
		ev.stopPropagation();
	}
	return false;
};

Calendar.addEvent = function(el, evname, func) {
	if (el.attachEvent) { // IE
		el.attachEvent("on" + evname, func);
	} else if (el.addEventListener) { // Gecko / W3C
		el.addEventListener(evname, func, true);
	} else {
		el["on" + evname] = func;
	}
};

Calendar.removeEvent = function(el, evname, func) {
	if (el.detachEvent) { // IE
		el.detachEvent("on" + evname, func);
	} else if (el.removeEventListener) { // Gecko / W3C
		el.removeEventListener(evname, func, true);
	} else {
		el["on" + evname] = null;
	}
};

Calendar.createElement = function(type, parent) {
	var el = null;
	if (document.createElementNS) {
		// use the XHTML namespace; IE won't normally get here unless
		// _they_ "fix" the DOM2 implementation.
		el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
	} else {
		el = document.createElement(type);
	}
	if (typeof parent != "undefined") {
		parent.appendChild(el);
	}
	return el;
};

// END: UTILITY FUNCTIONS

// BEGIN: CALENDAR STATIC FUNCTIONS

/** Internal -- adds a set of events to make some element behave like a button. */
Calendar._add_evs = function(el) {
	with (Calendar) {
		addEvent(el, "mouseover", dayMouseOver);
		addEvent(el, "mousedown", dayMouseDown);
		addEvent(el, "mouseout", dayMouseOut);
		if (is_ie) {
			addEvent(el, "dblclick", dayMouseDblClick);
			el.setAttribute("unselectable", true);
		}
	}
};

Calendar.findMonth = function(el) {
	if (typeof el.month != "undefined") {
		return el;
	} else if (typeof el.parentNode.month != "undefined") {
		return el.parentNode;
	}
	return null;
};

Calendar.findYear = function(el) {
	if (typeof el.year != "undefined") {
		return el;
	} else if (typeof el.parentNode.year != "undefined") {
		return el.parentNode;
	}
	return null;
};

Calendar.showMonthsCombo = function () {
	var cal = Calendar._C;
	if (!cal) {
		return false;
	}
	var cal = cal;
	var cd = cal.activeDiv;
	var mc = cal.monthsCombo;
	if (cal.hilitedMonth) {
		Calendar.removeClass(cal.hilitedMonth, "hilite");
	}
	if (cal.activeMonth) {
		Calendar.removeClass(cal.activeMonth, "active");
	}
	var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
	Calendar.addClass(mon, "active");
	cal.activeMonth = mon;
	var s = mc.style;
	s.display = "block";
	if (cd.navtype < 0)
		s.left = cd.offsetLeft + "px";
	else {
		var mcw = mc.offsetWidth;
		if (typeof mcw == "undefined")
			// Konqueror brain-dead techniques
			mcw = 50;
		s.left = (cd.offsetLeft + cd.offsetWidth - mcw) + "px";
	}
	s.top = (cd.offsetTop + cd.offsetHeight) + "px";
};

Calendar.showYearsCombo = function (fwd) {
	var cal = Calendar._C;
	if (!cal) {
		return false;
	}
	var cal = cal;
	var cd = cal.activeDiv;
	var yc = cal.yearsCombo;
	if (cal.hilitedYear) {
		Calendar.removeClass(cal.hilitedYear, "hilite");
	}
	if (cal.activeYear) {
		Calendar.removeClass(cal.activeYear, "active");
	}
	cal.activeYear = null;
	var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
	var yr = yc.firstChild;
	var show = false;
	for (var i = 12; i > 0; --i) {
		if (Y >= cal.minYear && Y <= cal.maxYear) {
			yr.innerHTML = Y;
			yr.year = Y;
			yr.style.display = "block";
			show = true;
		} else {
			yr.style.display = "none";
		}
		yr = yr.nextSibling;
		Y += fwd ? cal.yearStep : -cal.yearStep;
	}
	if (show) {
		var s = yc.style;
		s.display = "block";
		if (cd.navtype < 0)
			s.left = cd.offsetLeft + "px";
		else {
			var ycw = yc.offsetWidth;
			if (typeof ycw == "undefined")
				// Konqueror brain-dead techniques
				ycw = 50;
			s.left = (cd.offsetLeft + cd.offsetWidth - ycw) + "px";
		}
		s.top = (cd.offsetTop + cd.offsetHeight) + "px";
	}
};

// event handlers

Calendar.tableMouseUp = function(ev) {
	var cal = Calendar._C;
	if (!cal) {
		return false;
	}
	if (cal.timeout) {
		clearTimeout(cal.timeout);
	}
	var el = cal.activeDiv;
	if (!el) {
		return false;
	}
	var target = Calendar.getTargetElement(ev);
	ev || (ev = window.event);
	Calendar.removeClass(el, "active");
	if (target == el || target.parentNode == el) {
		Calendar.cellClick(el, ev);
	}
	var mon = Calendar.findMonth(target);
	var date = null;
	if (mon) {
		date = new Date(cal.date);
		if (mon.month != date.getMonth()) {
			date.setMonth(mon.month);
			cal.setDate(date);
			cal.dateClicked = false;
			cal.callHandler();
		}
	} else {
		var year = Calendar.findYear(target);
		if (year) {
			date = new Date(cal.date);
			if (year.year != date.getFullYear()) {
				date.setFullYear(year.year);
				cal.setDate(date);
				cal.dateClicked = false;
				cal.callHandler();
			}
		}
	}
	with (Calendar) {
		removeEvent(document, "mouseup", tableMouseUp);
		removeEvent(document, "mouseover", tableMouseOver);
		removeEvent(document, "mousemove", tableMouseOver);
		cal._hideCombos();
		_C = null;
		return stopEvent(ev);
	}
};

Calendar.tableMouseOver = function (ev) {
	var cal = Calendar._C;
	if (!cal) {
		return;
	}
	var el = cal.activeDiv;
	var target = Calendar.getTargetElement(ev);
	if (target == el || target.parentNode == el) {
		Calendar.addClass(el, "hilite active");
		Calendar.addClass(el.parentNode, "rowhilite");
	} else {
		if (typeof el.navtype == "undefined" || (el.navtype != 50 && (el.navtype == 0 || Math.abs(el.navtype) > 2)))
			Calendar.removeClass(el, "active");
		Calendar.removeClass(el, "hilite");
		Calendar.removeClass(el.parentNode, "rowhilite");
	}
	ev || (ev = window.event);
	if (el.navtype == 50 && target != el) {
		var pos = Calendar.getAbsolutePos(el);
		var w = el.offsetWidth;
		var x = ev.clientX;
		var dx;
		var decrease = true;
		if (x > pos.x + w) {
			dx = x - pos.x - w;
			decrease = false;
		} else
			dx = pos.x - x;

		if (dx < 0) dx = 0;
		var range = el._range;
		var current = el._current;
		var count = Math.floor(dx / 10) % range.length;
		for (var i = range.length; --i >= 0;)
			if (range[i] == current)
				break;
		while (count-- > 0)
			if (decrease) {
				if (--i < 0)
					i = range.length - 1;
			} else if ( ++i >= range.length )
				i = 0;
		var newval = range[i];
		el.innerHTML = newval;

		cal.onUpdateTime();
	}
	var mon = Calendar.findMonth(target);
	if (mon) {
		if (mon.month != cal.date.getMonth()) {
			if (cal.hilitedMonth) {
				Calendar.removeClass(cal.hilitedMonth, "hilite");
			}
			Calendar.addClass(mon, "hilite");
			cal.hilitedMonth = mon;
		} else if (cal.hilitedMonth) {
			Calendar.removeClass(cal.hilitedMonth, "hilite");
		}
	} else {
		if (cal.hilitedMonth) {
			Calendar.removeClass(cal.hilitedMonth, "hilite");
		}
		var year = Calendar.findYear(target);
		if (year) {
			if (year.year != cal.date.getFullYear()) {
				if (cal.hilitedYear) {
					Calendar.removeClass(cal.hilitedYear, "hilite");
				}
				Calendar.addClass(year, "hilite");
				cal.hilitedYear = year;
			} else if (cal.hilitedYear) {
				Calendar.removeClass(cal.hilitedYear, "hilite");
			}
		} else if (cal.hilitedYear) {
			Calendar.removeClass(cal.hilitedYear, "hilite");
		}
	}
	return Calendar.stopEvent(ev);
};

Calendar.tableMouseDown = function (ev) {
	if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
		return Calendar.stopEvent(ev);
	}
};

Calendar.calDragIt = function (ev) {
	var cal = Calendar._C;
	if (!(cal && cal.dragging)) {
		return false;
	}
	var posX;
	var posY;
	if (Calendar.is_ie) {
		posY = window.event.clientY + document.body.scrollTop;
		posX = window.event.clientX + document.body.scrollLeft;
	} else {
		posX = ev.pageX;
		posY = ev.pageY;
	}
	cal.hideShowCovered();
	var st = cal.element.style;
	st.left = (posX - cal.xOffs) + "px";
	st.top = (posY - cal.yOffs) + "px";
	return Calendar.stopEvent(ev);
};

Calendar.calDragEnd = function (ev) {
	var cal = Calendar._C;
	if (!cal) {
		return false;
	}
	cal.dragging = false;
	with (Calendar) {
		removeEvent(document, "mousemove", calDragIt);
		removeEvent(document, "mouseup", calDragEnd);
		tableMouseUp(ev);
	}
	cal.hideShowCovered();
};

Calendar.dayMouseDown = function(ev) {
	var el = Calendar.getElement(ev);
	if (el.disabled) {
		return false;
	}
	var cal = el.calendar;
	cal.activeDiv = el;
	Calendar._C = cal;
	if (el.navtype != 300) with (Calendar) {
		if (el.navtype == 50) {
			el._current = el.innerHTML;
			addEvent(document, "mousemove", tableMouseOver);
		} else
			addEvent(document, Calendar.is_ie5 ? "mousemove" : "mouseover", tableMouseOver);
		addClass(el, "hilite active");
		addEvent(document, "mouseup", tableMouseUp);
	} else if (cal.isPopup) {
		cal._dragStart(ev);
	}
	if (el.navtype == -1 || el.navtype == 1) {
		if (cal.timeout) clearTimeout(cal.timeout);
		cal.timeout = setTimeout("Calendar.showMonthsCombo()", 250);
	} else if (el.navtype == -2 || el.navtype == 2) {
		if (cal.timeout) clearTimeout(cal.timeout);
		cal.timeout = setTimeout((el.navtype > 0) ? "Calendar.showYearsCombo(true)" : "Calendar.showYearsCombo(false)", 250);
	} else {
		cal.timeout = null;
	}
	return Calendar.stopEvent(ev);
};

Calendar.dayMouseDblClick = function(ev) {
	Calendar.cellClick(Calendar.getElement(ev), ev || window.event);
	if (Calendar.is_ie) {
		document.selection.empty();
	}
};

Calendar.dayMouseOver = function(ev) {
	var el = Calendar.getElement(ev);
	if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
		return false;
	}
	if (el.ttip) {
		if (el.ttip.substr(0, 1) == "_") {
			el.ttip = el.caldate.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
		}
		el.calendar.tooltips.innerHTML = el.ttip;
	}
	if (el.navtype != 300) {
		Calendar.addClass(el, "hilite");
		if (el.caldate) {
			Calendar.addClass(el.parentNode, "rowhilite");
		}
	}
	return Calendar.stopEvent(ev);
};

Calendar.dayMouseOut = function(ev) {
	with (Calendar) {
		var el = getElement(ev);
		if (isRelated(el, ev) || _C || el.disabled)
			return false;
		removeClass(el, "hilite");
		if (el.caldate)
			removeClass(el.parentNode, "rowhilite");
		if (el.calendar)
			el.calendar.tooltips.innerHTML = _TT["SEL_DATE"];
		return stopEvent(ev);
	}
};

/**
 *  A generic "click" handler :) handles all types of buttons defined in this
 *  calendar.
 */
Calendar.cellClick = function(el, ev) {
	var cal = el.calendar;
	var closing = false;
	var newdate = false;
	var date = null;
	if (typeof el.navtype == "undefined") {
		if (cal.currentDateEl) {
			Calendar.removeClass(cal.currentDateEl, "selected");
			Calendar.addClass(el, "selected");
			closing = (cal.currentDateEl == el);
			if (!closing) {
				cal.currentDateEl = el;
			}
		}
		cal.date.setDateOnly(el.caldate);
		date = cal.date;
		var other_month = !(cal.dateClicked = !el.otherMonth);
		if (!other_month && !cal.currentDateEl)
			cal._toggleMultipleDate(new Date(date));
		else
			newdate = !el.disabled;
		// a date was clicked
		if (other_month)
			cal._init(cal.firstDayOfWeek, date);
	} else {
		if (el.navtype == 200) {
			Calendar.removeClass(el, "hilite");
			cal.callCloseHandler();
			return;
		}
		date = new Date(cal.date);
		if (el.navtype == 0)
			date.setDateOnly(new Date()); // TODAY
		// unless "today" was clicked, we assume no date was clicked so
		// the selected handler will know not to close the calenar when
		// in single-click mode.
		// cal.dateClicked = (el.navtype == 0);
		cal.dateClicked = false;
		var year = date.getFullYear();
		var mon = date.getMonth();
		function setMonth(m) {
			var day = date.getDate();
			var max = date.getMonthDays(m);
			if (day > max) {
				date.setDate(max);
			}
			date.setMonth(m);
		};
		switch (el.navtype) {
		    case 400:
			Calendar.removeClass(el, "hilite");
			var text = Calendar._TT["ABOUT"];
			if (typeof text != "undefined") {
				text += cal.showsTime ? Calendar._TT["ABOUT_TIME"] : "";
			} else {
				// FIXME: this should be removed as soon as lang files get updated!
				text = "Help and about box text is not translated into this language.\n" +
					"If you know this language and you feel generous please update\n" +
					"the corresponding file in \"lang\" subdir to match calendar-en.js\n" +
					"and send it back to <mihai_bazon@yahoo.com> to get it into the distribution  ;-)\n\n" +
					"Thank you!\n" +
					"http://dynarch.com/mishoo/calendar.epl\n";
			}
			alert(text);
			return;
		    case -2:
			if (year > cal.minYear) {
				date.setFullYear(year - 1);
			}
			break;
		    case -1:
			if (mon > 0) {
				setMonth(mon - 1);
			} else if (year-- > cal.minYear) {
				date.setFullYear(year);
				setMonth(11);
			}
			break;
		    case 1:
			if (mon < 11) {
				setMonth(mon + 1);
			} else if (year < cal.maxYear) {
				date.setFullYear(year + 1);
				setMonth(0);
			}
			break;
		    case 2:
			if (year < cal.maxYear) {
				date.setFullYear(year + 1);
			}
			break;
		    case 100:
			cal.setFirstDayOfWeek(el.fdow);
			return;
		    case 50:
			var range = el._range;
			var current = el.innerHTML;
			for (var i = range.length; --i >= 0;)
				if (range[i] == current)
					break;
			if (ev && ev.shiftKey) {
				if (--i < 0)
					i = range.length - 1;
			} else if ( ++i >= range.length )
				i = 0;
			var newval = range[i];
			el.innerHTML = newval;
			cal.onUpdateTime();
			return;
		    case 0:
			// TODAY will bring us here
			if ((typeof cal.getDateStatus == "function") &&
			    cal.getDateStatus(date, date.getFullYear(), date.getMonth(), date.getDate())) {
				return false;
			}
			break;
		}
		if (!date.equalsTo(cal.date)) {
			cal.setDate(date);
			newdate = true;
		} else if (el.navtype == 0)
			newdate = closing = true;
	}
	if (newdate) {
		ev && cal.callHandler();
	}
	if (closing) {
		Calendar.removeClass(el, "hilite");
		ev && cal.callCloseHandler();
	}
};

// END: CALENDAR STATIC FUNCTIONS

// BEGIN: CALENDAR OBJECT FUNCTIONS

/**
 *  This function creates the calendar inside the given parent.  If _par is
 *  null than it creates a popup calendar inside the BODY element.  If _par is
 *  an element, be it BODY, then it creates a non-popup calendar (still
 *  hidden).  Some properties need to be set before calling this function.
 */
Calendar.prototype.create = function (_par) {
	var parent = null;
	if (! _par) {
		// default parent is the document body, in which case we create
		// a popup calendar.
		parent = document.getElementsByTagName("body")[0];
		this.isPopup = true;
	} else {
		parent = _par;
		this.isPopup = false;
	}
	this.date = this.dateStr ? new Date(this.dateStr) : new Date();

	var table = Calendar.createElement("table");
	this.table = table;
	table.cellSpacing = 0;
	table.cellPadding = 0;
	table.calendar = this;
	Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);

	var div = Calendar.createElement("div");
	this.element = div;
	div.className = "calendar";
	if (this.isPopup) {
		div.style.position = "absolute";
		div.style.display = "none";
	}
	div.appendChild(table);

	var thead = Calendar.createElement("thead", table);
	var cell = null;
	var row = null;

	var cal = this;
	var hh = function (text, cs, navtype) {
		cell = Calendar.createElement("td", row);
		cell.colSpan = cs;
		cell.className = "button";
		if (navtype != 0 && Math.abs(navtype) <= 2)
			cell.className += " nav";
		Calendar._add_evs(cell);
		cell.calendar = cal;
		cell.navtype = navtype;
		cell.innerHTML = "<div unselectable='on'>" + text + "</div>";
		return cell;
	};

	row = Calendar.createElement("tr", thead);
	var title_length = 6;
	(this.isPopup) && --title_length;
	(this.weekNumbers) && ++title_length;

	hh("?", 1, 400).ttip = Calendar._TT["INFO"];
	this.title = hh("", title_length, 300);
	this.title.className = "title";
	if (this.isPopup) {
		this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
		this.title.style.cursor = "move";
		hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
	}

	row = Calendar.createElement("tr", thead);
	row.className = "headrow";

	this._nav_py = hh("&#x00ab;", 1, -2);
	this._nav_py.ttip = Calendar._TT["PREV_YEAR"];

	this._nav_pm = hh("&#x2039;", 1, -1);
	this._nav_pm.ttip = Calendar._TT["PREV_MONTH"];

	this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0);
	this._nav_now.ttip = Calendar._TT["GO_TODAY"];

	this._nav_nm = hh("&#x203a;", 1, 1);
	this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"];

	this._nav_ny = hh("&#x00bb;", 1, 2);
	this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"];

	// day names
	row = Calendar.createElement("tr", thead);
	row.className = "daynames";
	if (this.weekNumbers) {
		cell = Calendar.createElement("td", row);
		cell.className = "name wn";
		cell.innerHTML = Calendar._TT["WK"];
	}
	for (var i = 7; i > 0; --i) {
		cell = Calendar.createElement("td", row);
		if (!i) {
			cell.navtype = 100;
			cell.calendar = this;
			Calendar._add_evs(cell);
		}
	}
	this.firstdayname = (this.weekNumbers) ? row.firstChild.nextSibling : row.firstChild;
	this._displayWeekdays();

	var tbody = Calendar.createElement("tbody", table);
	this.tbody = tbody;

	for (i = 6; i > 0; --i) {
		row = Calendar.createElement("tr", tbody);
		if (this.weekNumbers) {
			cell = Calendar.createElement("td", row);
		}
		for (var j = 7; j > 0; --j) {
			cell = Calendar.createElement("td", row);
			cell.calendar = this;
			Calendar._add_evs(cell);
		}
	}

	if (this.showsTime) {
		row = Calendar.createElement("tr", tbody);
		row.className = "time";

		cell = Calendar.createElement("td", row);
		cell.className = "time";
		cell.colSpan = 2;
		cell.innerHTML = Calendar._TT["TIME"] || "&nbsp;";

		cell = Calendar.createElement("td", row);
		cell.className = "time";
		cell.colSpan = this.weekNumbers ? 4 : 3;

		(function(){
			function makeTimePart(className, init, range_start, range_end) {
				var part = Calendar.createElement("span", cell);
				part.className = className;
				part.innerHTML = init;
				part.calendar = cal;
				part.ttip = Calendar._TT["TIME_PART"];
				part.navtype = 50;
				part._range = [];
				if (typeof range_start != "number")
					part._range = range_start;
				else {
					for (var i = range_start; i <= range_end; ++i) {
						var txt;
						if (i < 10 && range_end >= 10) txt = '0' + i;
						else txt = '' + i;
						part._range[part._range.length] = txt;
					}
				}
				Calendar._add_evs(part);
				return part;
			};
			var hrs = cal.date.getHours();
			var mins = cal.date.getMinutes();
			var t12 = !cal.time24;
			var pm = (hrs > 12);
			if (t12 && pm) hrs -= 12;
			var H = makeTimePart("hour", hrs, t12 ? 1 : 0, t12 ? 12 : 23);
			var span = Calendar.createElement("span", cell);
			span.innerHTML = ":";
			span.className = "colon";
			var M = makeTimePart("minute", mins, 0, 59);
			var AP = null;
			cell = Calendar.createElement("td", row);
			cell.className = "time";
			cell.colSpan = 2;
			if (t12)
				AP = makeTimePart("ampm", pm ? "pm" : "am", ["am", "pm"]);
			else
				cell.innerHTML = "&nbsp;";

			cal.onSetTime = function() {
				var pm, hrs = this.date.getHours(),
					mins = this.date.getMinutes();
				if (t12) {
					pm = (hrs >= 12);
					if (pm) hrs -= 12;
					if (hrs == 0) hrs = 12;
					AP.innerHTML = pm ? "pm" : "am";
				}
				H.innerHTML = (hrs < 10) ? ("0" + hrs) : hrs;
				M.innerHTML = (mins < 10) ? ("0" + mins) : mins;
			};

			cal.onUpdateTime = function() {
				var date = this.date;
				var h = parseInt(H.innerHTML, 10);
				if (t12) {
					if (/pm/i.test(AP.innerHTML) && h < 12)
						h += 12;
					else if (/am/i.test(AP.innerHTML) && h == 12)
						h = 0;
				}
				var d = date.getDate();
				var m = date.getMonth();
				var y = date.getFullYear();
				date.setHours(h);
				date.setMinutes(parseInt(M.innerHTML, 10));
				date.setFullYear(y);
				date.setMonth(m);
				date.setDate(d);
				this.dateClicked = false;
				this.callHandler();
			};
		})();
	} else {
		this.onSetTime = this.onUpdateTime = function() {};
	}

	var tfoot = Calendar.createElement("tfoot", table);

	row = Calendar.createElement("tr", tfoot);
	row.className = "footrow";

	cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300);
	cell.className = "ttip";
	if (this.isPopup) {
		cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
		cell.style.cursor = "move";
	}
	this.tooltips = cell;

	div = Calendar.createElement("div", this.element);
	this.monthsCombo = div;
	div.className = "combo";
	for (i = 0; i < Calendar._MN.length; ++i) {
		var mn = Calendar.createElement("div");
		mn.className = Calendar.is_ie ? "label-IEfix" : "label";
		mn.month = i;
		mn.innerHTML = Calendar._SMN[i];
		div.appendChild(mn);
	}

	div = Calendar.createElement("div", this.element);
	this.yearsCombo = div;
	div.className = "combo";
	for (i = 12; i > 0; --i) {
		var yr = Calendar.createElement("div");
		yr.className = Calendar.is_ie ? "label-IEfix" : "label";
		div.appendChild(yr);
	}

	this._init(this.firstDayOfWeek, this.date);
	parent.appendChild(this.element);
};

/** keyboard navigation, only for popup calendars */
Calendar._keyEvent = function(ev) {
	var cal = window._dynarch_popupCalendar;
	if (!cal || cal.multiple)
		return false;
	(Calendar.is_ie) && (ev = window.event);
	var act = (Calendar.is_ie || ev.type == "keypress"),
		K = ev.keyCode;
	if (ev.ctrlKey) {
		switch (K) {
		    case 37: // KEY left
			act && Calendar.cellClick(cal._nav_pm);
			break;
		    case 38: // KEY up
			act && Calendar.cellClick(cal._nav_py);
			break;
		    case 39: // KEY right
			act && Calendar.cellClick(cal._nav_nm);
			break;
		    case 40: // KEY down
			act && Calendar.cellClick(cal._nav_ny);
			break;
		    default:
			return false;
		}
	} else switch (K) {
	    case 32: // KEY space (now)
		Calendar.cellClick(cal._nav_now);
		break;
	    case 27: // KEY esc
		act && cal.callCloseHandler();
		break;
	    case 37: // KEY left
	    case 38: // KEY up
	    case 39: // KEY right
	    case 40: // KEY down
		if (act) {
			var prev, x, y, ne, el, step;
			prev = K == 37 || K == 38;
			step = (K == 37 || K == 39) ? 1 : 7;
			function setVars() {
				el = cal.currentDateEl;
				var p = el.pos;
				x = p & 15;
				y = p >> 4;
				ne = cal.ar_days[y][x];
			};setVars();
			function prevMonth() {
				var date = new Date(cal.date);
				date.setDate(date.getDate() - step);
				cal.setDate(date);
			};
			function nextMonth() {
				var date = new Date(cal.date);
				date.setDate(date.getDate() + step);
				cal.setDate(date);
			};
			while (1) {
				switch (K) {
				    case 37: // KEY left
					if (--x >= 0)
						ne = cal.ar_days[y][x];
					else {
						x = 6;
						K = 38;
						continue;
					}
					break;
				    case 38: // KEY up
					if (--y >= 0)
						ne = cal.ar_days[y][x];
					else {
						prevMonth();
						setVars();
					}
					break;
				    case 39: // KEY right
					if (++x < 7)
						ne = cal.ar_days[y][x];
					else {
						x = 0;
						K = 40;
						continue;
					}
					break;
				    case 40: // KEY down
					if (++y < cal.ar_days.length)
						ne = cal.ar_days[y][x];
					else {
						nextMonth();
						setVars();
					}
					break;
				}
				break;
			}
			if (ne) {
				if (!ne.disabled)
					Calendar.cellClick(ne);
				else if (prev)
					prevMonth();
				else
					nextMonth();
			}
		}
		break;
	    case 13: // KEY enter
		if (act)
			Calendar.cellClick(cal.currentDateEl, ev);
		break;
	    default:
		return false;
	}
	return Calendar.stopEvent(ev);
};

/**
 *  (RE)Initializes the calendar to the given date and firstDayOfWeek
 */
Calendar.prototype._init = function (firstDayOfWeek, date) {
	var today = new Date(),
		TY = today.getFullYear(),
		TM = today.getMonth(),
		TD = today.getDate();
	this.table.style.visibility = "hidden";
	var year = date.getFullYear();
	if (year < this.minYear) {
		year = this.minYear;
		date.setFullYear(year);
	} else if (year > this.maxYear) {
		year = this.maxYear;
		date.setFullYear(year);
	}
	this.firstDayOfWeek = firstDayOfWeek;
	this.date = new Date(date);
	var month = date.getMonth();
	var mday = date.getDate();
	var no_days = date.getMonthDays();

	// calendar voodoo for computing the first day that would actually be
	// displayed in the calendar, even if it's from the previous month.
	// WARNING: this is magic. ;-)
	date.setDate(1);
	var day1 = (date.getDay() - this.firstDayOfWeek) % 7;
	if (day1 < 0)
		day1 += 7;
	date.setDate(-day1);
	date.setDate(date.getDate() + 1);

	var row = this.tbody.firstChild;
	var MN = Calendar._SMN[month];
	var ar_days = this.ar_days = new Array();
	var weekend = Calendar._TT["WEEKEND"];
	var dates = this.multiple ? (this.datesCells = {}) : null;
	for (var i = 0; i < 6; ++i, row = row.nextSibling) {
		var cell = row.firstChild;
		if (this.weekNumbers) {
			cell.className = "day wn";
			cell.innerHTML = date.getWeekNumber();
			cell = cell.nextSibling;
		}
		row.className = "daysrow";
		var hasdays = false, iday, dpos = ar_days[i] = [];
		for (var j = 0; j < 7; ++j, cell = cell.nextSibling, date.setDate(iday + 1)) {
			iday = date.getDate();
			var wday = date.getDay();
			cell.className = "day";
			cell.pos = i << 4 | j;
			dpos[j] = cell;
			var current_month = (date.getMonth() == month);
			if (!current_month) {
				if (this.showsOtherMonths) {
					cell.className += " othermonth";
					cell.otherMonth = true;
				} else {
					cell.className = "emptycell";
					cell.innerHTML = "&nbsp;";
					cell.disabled = true;
					continue;
				}
			} else {
				cell.otherMonth = false;
				hasdays = true;
			}
			cell.disabled = false;
			cell.innerHTML = this.getDateText ? this.getDateText(date, iday) : iday;
			if (dates)
				dates[date.print("%Y%m%d")] = cell;
			if (this.getDateStatus) {
				var status = this.getDateStatus(date, year, month, iday);
				if (this.getDateToolTip) {
					var toolTip = this.getDateToolTip(date, year, month, iday);
					if (toolTip)
						cell.title = toolTip;
				}
				if (status === true) {
					cell.className += " disabled";
					cell.disabled = true;
				} else {
					if (/disabled/i.test(status))
						cell.disabled = true;
					cell.className += " " + status;
				}
			}
			if (!cell.disabled) {
				cell.caldate = new Date(date);
				cell.ttip = "_";
				if (!this.multiple && current_month
				    && iday == mday && this.hiliteToday) {
					cell.className += " selected";
					this.currentDateEl = cell;
				}
				if (date.getFullYear() == TY &&
				    date.getMonth() == TM &&
				    iday == TD) {
					cell.className += " today";
					cell.ttip += Calendar._TT["PART_TODAY"];
				}
				if (weekend.indexOf(wday.toString()) != -1)
					cell.className += cell.otherMonth ? " oweekend" : " weekend";
			}
		}
		if (!(hasdays || this.showsOtherMonths))
			row.className = "emptyrow";
	}
	this.title.innerHTML = Calendar._MN[month] + ", " + year;
	this.onSetTime();
	this.table.style.visibility = "visible";
	this._initMultipleDates();
	// PROFILE
	// this.tooltips.innerHTML = "Generated in " + ((new Date()) - today) + " ms";
};

Calendar.prototype._initMultipleDates = function() {
	if (this.multiple) {
		for (var i in this.multiple) {
			var cell = this.datesCells[i];
			var d = this.multiple[i];
			if (!d)
				continue;
			if (cell)
				cell.className += " selected";
		}
	}
};

Calendar.prototype._toggleMultipleDate = function(date) {
	if (this.multiple) {
		var ds = date.print("%Y%m%d");
		var cell = this.datesCells[ds];
		if (cell) {
			var d = this.multiple[ds];
			if (!d) {
				Calendar.addClass(cell, "selected");
				this.multiple[ds] = date;
			} else {
				Calendar.removeClass(cell, "selected");
				delete this.multiple[ds];
			}
		}
	}
};

Calendar.prototype.setDateToolTipHandler = function (unaryFunction) {
	this.getDateToolTip = unaryFunction;
};

/**
 *  Calls _init function above for going to a certain date (but only if the
 *  date is different than the currently selected one).
 */
Calendar.prototype.setDate = function (date) {
	if (!date.equalsTo(this.date)) {
		this._init(this.firstDayOfWeek, date);
	}
};

/**
 *  Refreshes the calendar.  Useful if the "disabledHandler" function is
 *  dynamic, meaning that the list of disabled date can change at runtime.
 *  Just * call this function if you think that the list of disabled dates
 *  should * change.
 */
Calendar.prototype.refresh = function () {
	this._init(this.firstDayOfWeek, this.date);
};

/** Modifies the "firstDayOfWeek" parameter (pass 0 for Synday, 1 for Monday, etc.). */
Calendar.prototype.setFirstDayOfWeek = function (firstDayOfWeek) {
	this._init(firstDayOfWeek, this.date);
	this._displayWeekdays();
};

/**
 *  Allows customization of what dates are enabled.  The "unaryFunction"
 *  parameter must be a function object that receives the date (as a JS Date
 *  object) and returns a boolean value.  If the returned value is true then
 *  the passed date will be marked as disabled.
 */
Calendar.prototype.setDateStatusHandler = Calendar.prototype.setDisabledHandler = function (unaryFunction) {
	this.getDateStatus = unaryFunction;
};

/** Customization of allowed year range for the calendar. */
Calendar.prototype.setRange = function (a, z) {
	this.minYear = a;
	this.maxYear = z;
};

/** Calls the first user handler (selectedHandler). */
Calendar.prototype.callHandler = function () {
	if (this.onSelected) {
		this.onSelected(this, this.date.print(this.dateFormat));
	}
};

/** Calls the second user handler (closeHandler). */
Calendar.prototype.callCloseHandler = function () {
	if (this.onClose) {
		this.onClose(this);
	}
	this.hideShowCovered();
};

/** Removes the calendar object from the DOM tree and destroys it. */
Calendar.prototype.destroy = function () {
	var el = this.element.parentNode;
	el.removeChild(this.element);
	Calendar._C = null;
	window._dynarch_popupCalendar = null;
};

/**
 *  Moves the calendar element to a different section in the DOM tree (changes
 *  its parent).
 */
Calendar.prototype.reparent = function (new_parent) {
	var el = this.element;
	el.parentNode.removeChild(el);
	new_parent.appendChild(el);
};

// This gets called when the user presses a mouse button anywhere in the
// document, if the calendar is shown.  If the click was outside the open
// calendar this function closes it.
Calendar._checkCalendar = function(ev) {
	var calendar = window._dynarch_popupCalendar;
	if (!calendar) {
		return false;
	}
	var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev);
	for (; el != null && el != calendar.element; el = el.parentNode);
	if (el == null) {
		// calls closeHandler which should hide the calendar.
		window._dynarch_popupCalendar.callCloseHandler();
		return Calendar.stopEvent(ev);
	}
};

/** Shows the calendar. */
Calendar.prototype.show = function () {
	var rows = this.table.getElementsByTagName("tr");
	for (var i = rows.length; i > 0;) {
		var row = rows[--i];
		Calendar.removeClass(row, "rowhilite");
		var cells = row.getElementsByTagName("td");
		for (var j = cells.length; j > 0;) {
			var cell = cells[--j];
			Calendar.removeClass(cell, "hilite");
			Calendar.removeClass(cell, "active");
		}
	}
	this.element.style.display = "block";
	this.hidden = false;
	if (this.isPopup) {
		window._dynarch_popupCalendar = this;
		Calendar.addEvent(document, "keydown", Calendar._keyEvent);
		Calendar.addEvent(document, "keypress", Calendar._keyEvent);
		Calendar.addEvent(document, "mousedown", Calendar._checkCalendar);
	}
	this.hideShowCovered();
};

/**
 *  Hides the calendar.  Also removes any "hilite" from the class of any TD
 *  element.
 */
Calendar.prototype.hide = function () {
	if (this.isPopup) {
		Calendar.removeEvent(document, "keydown", Calendar._keyEvent);
		Calendar.removeEvent(document, "keypress", Calendar._keyEvent);
		Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar);
	}
	this.element.style.display = "none";
	this.hidden = true;
	this.hideShowCovered();
};

/**
 *  Shows the calendar at a given absolute position (beware that, depending on
 *  the calendar element style -- position property -- this might be relative
 *  to the parent's containing rectangle).
 */
Calendar.prototype.showAt = function (x, y) {
	var s = this.element.style;
	s.left = x + "px";
	s.top = y + "px";
	this.show();
};

/** Shows the calendar near a given element. */
Calendar.prototype.showAtElement = function (el, opts) {
	var self = this;
	var p = Calendar.getAbsolutePos(el);
	if (!opts || typeof opts != "string") {
		this.showAt(p.x, p.y + el.offsetHeight);
		return true;
	}
	function fixPosition(box) {
		if (box.x < 0)
			box.x = 0;
		if (box.y < 0)
			box.y = 0;
		var cp = document.createElement("div");
		var s = cp.style;
		s.position = "absolute";
		s.right = s.bottom = s.width = s.height = "0px";
		document.body.appendChild(cp);
		var br = Calendar.getAbsolutePos(cp);
		document.body.removeChild(cp);
		if (Calendar.is_ie) {
			br.y += document.body.scrollTop;
			br.x += document.body.scrollLeft;
		} else {
			br.y += window.scrollY;
			br.x += window.scrollX;
		}
		var tmp = box.x + box.width - br.x;
		if (tmp > 0) box.x -= tmp;
		tmp = box.y + box.height - br.y;
		if (tmp > 0) box.y -= tmp;
	};
	this.element.style.display = "block";
	Calendar.continuation_for_the_fucking_khtml_browser = function() {
		var w = self.element.offsetWidth;
		var h = self.element.offsetHeight;
		self.element.style.display = "none";
		var valign = opts.substr(0, 1);
		var halign = "l";
		if (opts.length > 1) {
			halign = opts.substr(1, 1);
		}
		// vertical alignment
		switch (valign) {
		    case "T": p.y -= h; break;
		    case "B": p.y += el.offsetHeight; break;
		    case "C": p.y += (el.offsetHeight - h) / 2; break;
		    case "t": p.y += el.offsetHeight - h; break;
		    case "b": break; // already there
		}
		// horizontal alignment
		switch (halign) {
		    case "L": p.x -= w; break;
		    case "R": p.x += el.offsetWidth; break;
		    case "C": p.x += (el.offsetWidth - w) / 2; break;
		    case "l": p.x += el.offsetWidth - w; break;
		    case "r": break; // already there
		}
		p.width = w;
		p.height = h + 40;
		self.monthsCombo.style.display = "none";
		fixPosition(p);
		self.showAt(p.x, p.y);
	};
	if (Calendar.is_khtml)
		setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10);
	else
		Calendar.continuation_for_the_fucking_khtml_browser();
};

/** Customizes the date format. */
Calendar.prototype.setDateFormat = function (str) {
	this.dateFormat = str;
};

/** Customizes the tooltip date format. */
Calendar.prototype.setTtDateFormat = function (str) {
	this.ttDateFormat = str;
};

/**
 *  Tries to identify the date represented in a string.  If successful it also
 *  calls this.setDate which moves the calendar to the given date.
 */
Calendar.prototype.parseDate = function(str, fmt) {
	if (!fmt)
		fmt = this.dateFormat;
	this.setDate(Date.parseDate(str, fmt));
};

Calendar.prototype.hideShowCovered = function () {
	if (!Calendar.is_ie && !Calendar.is_opera)
		return;
	function getVisib(obj){
		var value = obj.style.visibility;
		if (!value) {
			if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C
				if (!Calendar.is_khtml)
					value = document.defaultView.
						getComputedStyle(obj, "").getPropertyValue("visibility");
				else
					value = '';
			} else if (obj.currentStyle) { // IE
				value = obj.currentStyle.visibility;
			} else
				value = '';
		}
		return value;
	};

	var tags = new Array("applet", "iframe", "select");
	var el = this.element;

	var p = Calendar.getAbsolutePos(el);
	var EX1 = p.x;
	var EX2 = el.offsetWidth + EX1;
	var EY1 = p.y;
	var EY2 = el.offsetHeight + EY1;

	for (var k = tags.length; k > 0; ) {
		var ar = document.getElementsByTagName(tags[--k]);
		var cc = null;

		for (var i = ar.length; i > 0;) {
			cc = ar[--i];

			p = Calendar.getAbsolutePos(cc);
			var CX1 = p.x;
			var CX2 = cc.offsetWidth + CX1;
			var CY1 = p.y;
			var CY2 = cc.offsetHeight + CY1;

			if (this.hidden || (CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) {
				if (!cc.__msh_save_visibility) {
					cc.__msh_save_visibility = getVisib(cc);
				}
				cc.style.visibility = cc.__msh_save_visibility;
			} else {
				if (!cc.__msh_save_visibility) {
					cc.__msh_save_visibility = getVisib(cc);
				}
				cc.style.visibility = "hidden";
			}
		}
	}
};

/** Internal function; it displays the bar with the names of the weekday. */
Calendar.prototype._displayWeekdays = function () {
	var fdow = this.firstDayOfWeek;
	var cell = this.firstdayname;
	var weekend = Calendar._TT["WEEKEND"];
	for (var i = 0; i < 7; ++i) {
		cell.className = "day name";
		var realday = (i + fdow) % 7;
		if (i) {
			cell.ttip = Calendar._TT["DAY_FIRST"].replace("%s", Calendar._DN[realday]);
			cell.navtype = 100;
			cell.calendar = this;
			cell.fdow = realday;
			Calendar._add_evs(cell);
		}
		if (weekend.indexOf(realday.toString()) != -1) {
			Calendar.addClass(cell, "weekend");
		}
		cell.innerHTML = Calendar._SDN[(i + fdow) % 7];
		cell = cell.nextSibling;
	}
};

/** Internal function.  Hides all combo boxes that might be displayed. */
Calendar.prototype._hideCombos = function () {
	this.monthsCombo.style.display = "none";
	this.yearsCombo.style.display = "none";
};

/** Internal function.  Starts dragging the element. */
Calendar.prototype._dragStart = function (ev) {
	if (this.dragging) {
		return;
	}
	this.dragging = true;
	var posX;
	var posY;
	if (Calendar.is_ie) {
		posY = window.event.clientY + document.body.scrollTop;
		posX = window.event.clientX + document.body.scrollLeft;
	} else {
		posY = ev.clientY + window.scrollY;
		posX = ev.clientX + window.scrollX;
	}
	var st = this.element.style;
	this.xOffs = posX - parseInt(st.left);
	this.yOffs = posY - parseInt(st.top);
	with (Calendar) {
		addEvent(document, "mousemove", calDragIt);
		addEvent(document, "mouseup", calDragEnd);
	}
};

// BEGIN: DATE OBJECT PATCHES

/** Adds the number of days array to the Date object. */
Date._MD = new Array(31,28,31,30,31,30,31,31,30,31,30,31);

/** Constants used for time computations */
Date.SECOND = 1000 /* milliseconds */;
Date.MINUTE = 60 * Date.SECOND;
Date.HOUR   = 60 * Date.MINUTE;
Date.DAY    = 24 * Date.HOUR;
Date.WEEK   =  7 * Date.DAY;

Date.parseDate = function(str, fmt) {
	var today = new Date();
	var y = 0;
	var m = -1;
	var d = 0;
	var a = str.split(/\W+/);
	var b = fmt.match(/%./g);
	var i = 0, j = 0;
	var hr = 0;
	var min = 0;
	for (i = 0; i < a.length; ++i) {
		if (!a[i])
			continue;
		switch (b[i]) {
		    case "%d":
		    case "%e":
			d = parseInt(a[i], 10);
			break;

		    case "%m":
			m = parseInt(a[i], 10) - 1;
			break;

		    case "%Y":
		    case "%y":
			y = parseInt(a[i], 10);
			(y < 100) && (y += (y > 29) ? 1900 : 2000);
			break;

		    case "%b":
		    case "%B":
			for (j = 0; j < 12; ++j) {
				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
			}
			break;

		    case "%H":
		    case "%I":
		    case "%k":
		    case "%l":
			hr = parseInt(a[i], 10);
			break;

		    case "%P":
		    case "%p":
			if (/pm/i.test(a[i]) && hr < 12)
				hr += 12;
			else if (/am/i.test(a[i]) && hr >= 12)
				hr -= 12;
			break;

		    case "%M":
			min = parseInt(a[i], 10);
			break;
		}
	}
	if (isNaN(y)) y = today.getFullYear();
	if (isNaN(m)) m = today.getMonth();
	if (isNaN(d)) d = today.getDate();
	if (isNaN(hr)) hr = today.getHours();
	if (isNaN(min)) min = today.getMinutes();
	if (y != 0 && m != -1 && d != 0)
		return new Date(y, m, d, hr, min, 0);
	y = 0; m = -1; d = 0;
	for (i = 0; i < a.length; ++i) {
		if (a[i].search(/[a-zA-Z]+/) != -1) {
			var t = -1;
			for (j = 0; j < 12; ++j) {
				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
			}
			if (t != -1) {
				if (m != -1) {
					d = m+1;
				}
				m = t;
			}
		} else if (parseInt(a[i], 10) <= 12 && m == -1) {
			m = a[i]-1;
		} else if (parseInt(a[i], 10) > 31 && y == 0) {
			y = parseInt(a[i], 10);
			(y < 100) && (y += (y > 29) ? 1900 : 2000);
		} else if (d == 0) {
			d = a[i];
		}
	}
	if (y == 0)
		y = today.getFullYear();
	if (m != -1 && d != 0)
		return new Date(y, m, d, hr, min, 0);
	return today;
};

/** Returns the number of days in the current month */
Date.prototype.getMonthDays = function(month) {
	var year = this.getFullYear();
	if (typeof month == "undefined") {
		month = this.getMonth();
	}
	if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) {
		return 29;
	} else {
		return Date._MD[month];
	}
};

/** Returns the number of day in the year. */
Date.prototype.getDayOfYear = function() {
	var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
	var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0);
	var time = now - then;
	return Math.floor(time / Date.DAY);
};

/** Returns the number of the week in year, as defined in ISO 8601. */
Date.prototype.getWeekNumber = function() {
	var d = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
	var DoW = d.getDay();
	d.setDate(d.getDate() - (DoW + 6) % 7 + 3); // Nearest Thu
	var ms = d.valueOf(); // GMT
	d.setMonth(0);
	d.setDate(4); // Thu in Week 1
	return Math.round((ms - d.valueOf()) / (7 * 864e5)) + 1;
};

/** Checks date and time equality */
Date.prototype.equalsTo = function(date) {
	return ((this.getFullYear() == date.getFullYear()) &&
		(this.getMonth() == date.getMonth()) &&
		(this.getDate() == date.getDate()) &&
		(this.getHours() == date.getHours()) &&
		(this.getMinutes() == date.getMinutes()));
};

/** Set only the year, month, date parts (keep existing time) */
Date.prototype.setDateOnly = function(date) {
	var tmp = new Date(date);
	this.setDate(1);
	this.setFullYear(tmp.getFullYear());
	this.setMonth(tmp.getMonth());
	this.setDate(tmp.getDate());
};

/** Prints the date in a string according to the given format. */
Date.prototype.print = function (str) {
	var m = this.getMonth();
	var d = this.getDate();
	var y = this.getFullYear();
	var wn = this.getWeekNumber();
	var w = this.getDay();
	var s = {};
	var hr = this.getHours();
	var pm = (hr >= 12);
	var ir = (pm) ? (hr - 12) : hr;
	var dy = this.getDayOfYear();
	if (ir == 0)
		ir = 12;
	var min = this.getMinutes();
	var sec = this.getSeconds();
	s["%a"] = Calendar._SDN[w]; // abbreviated weekday name [FIXME: I18N]
	s["%A"] = Calendar._DN[w]; // full weekday name
	s["%b"] = Calendar._SMN[m]; // abbreviated month name [FIXME: I18N]
	s["%B"] = Calendar._MN[m]; // full month name
	// FIXME: %c : preferred date and time representation for the current locale
	s["%C"] = 1 + Math.floor(y / 100); // the century number
	s["%d"] = (d < 10) ? ("0" + d) : d; // the day of the month (range 01 to 31)
	s["%e"] = d; // the day of the month (range 1 to 31)
	// FIXME: %D : american date style: %m/%d/%y
	// FIXME: %E, %F, %G, %g, %h (man strftime)
	s["%H"] = (hr < 10) ? ("0" + hr) : hr; // hour, range 00 to 23 (24h format)
	s["%I"] = (ir < 10) ? ("0" + ir) : ir; // hour, range 01 to 12 (12h format)
	s["%j"] = (dy < 100) ? ((dy < 10) ? ("00" + dy) : ("0" + dy)) : dy; // day of the year (range 001 to 366)
	s["%k"] = hr;		// hour, range 0 to 23 (24h format)
	s["%l"] = ir;		// hour, range 1 to 12 (12h format)
	s["%m"] = (m < 9) ? ("0" + (1+m)) : (1+m); // month, range 01 to 12
	s["%M"] = (min < 10) ? ("0" + min) : min; // minute, range 00 to 59
	s["%n"] = "\n";		// a newline character
	s["%p"] = pm ? "PM" : "AM";
	s["%P"] = pm ? "pm" : "am";
	// FIXME: %r : the time in am/pm notation %I:%M:%S %p
	// FIXME: %R : the time in 24-hour notation %H:%M
	s["%s"] = Math.floor(this.getTime() / 1000);
	s["%S"] = (sec < 10) ? ("0" + sec) : sec; // seconds, range 00 to 59
	s["%t"] = "\t";		// a tab character
	// FIXME: %T : the time in 24-hour notation (%H:%M:%S)
	s["%U"] = s["%W"] = s["%V"] = (wn < 10) ? ("0" + wn) : wn;
	s["%u"] = w + 1;	// the day of the week (range 1 to 7, 1 = MON)
	s["%w"] = w;		// the day of the week (range 0 to 6, 0 = SUN)
	// FIXME: %x : preferred date representation for the current locale without the time
	// FIXME: %X : preferred time representation for the current locale without the date
	s["%y"] = ('' + y).substr(2, 2); // year without the century (range 00 to 99)
	s["%Y"] = y;		// year with the century
	s["%%"] = "%";		// a literal '%' character

	var re = /%./g;
	if (!Calendar.is_ie5 && !Calendar.is_khtml)
		return str.replace(re, function (par) { return s[par] || par; });

	var a = str.match(re);
	for (var i = 0; i < a.length; i++) {
		var tmp = s[a[i]];
		if (tmp) {
			re = new RegExp(a[i], 'g');
			str = str.replace(re, tmp);
		}
	}

	return str;
};

Date.prototype.__msh_oldSetFullYear = Date.prototype.setFullYear;
Date.prototype.setFullYear = function(y) {
	var d = new Date(this);
	d.__msh_oldSetFullYear(y);
	if (d.getMonth() != this.getMonth())
		this.setDate(28);
	this.__msh_oldSetFullYear(y);
};

// END: DATE OBJECT PATCHES


// global object that remembers the calendar
window._dynarch_popupCalendar = null;


// ** I18N

// Calendar EN language
// Author: Mihai Bazon, <mihai_bazon@yahoo.com>
// Encoding: any
// Distributed under the same terms as the calendar itself.

// For translators: please use UTF-8 if possible.  We strongly believe that
// Unicode is the answer to a real internationalized world.  Also please
// include your contact information in the header, as can be seen above.

// full day names
Calendar._DN = new Array
("Sunday",
 "Monday",
 "Tuesday",
 "Wednesday",
 "Thursday",
 "Friday",
 "Saturday",
 "Sunday");

// Please note that the following array of short day names (and the same goes
// for short month names, _SMN) isn't absolutely necessary.  We give it here
// for exemplification on how one can customize the short day names, but if
// they are simply the first N letters of the full name you can simply say:
//
//   Calendar._SDN_len = N; // short day name length
//   Calendar._SMN_len = N; // short month name length
//
// If N = 3 then this is not needed either since we assume a value of 3 if not
// present, to be compatible with translation files that were written before
// this feature.

// short day names
Calendar._SDN = new Array
("Sun",
 "Mon",
 "Tue",
 "Wed",
 "Thu",
 "Fri",
 "Sat",
 "Sun");

// First day of the week. "0" means display Sunday first, "1" means display
// Monday first, etc.
Calendar._FD = 0;

// full month names
Calendar._MN = new Array
("January",
 "February",
 "March",
 "April",
 "May",
 "June",
 "July",
 "August",
 "September",
 "October",
 "November",
 "December");

// short month names
Calendar._SMN = new Array
("Jan",
 "Feb",
 "Mar",
 "Apr",
 "May",
 "Jun",
 "Jul",
 "Aug",
 "Sep",
 "Oct",
 "Nov",
 "Dec");

// tooltips
Calendar._TT = {};
Calendar._TT["INFO"] = "About the calendar";

Calendar._TT["ABOUT"] =
"DHTML Date/Time Selector\n" +
"(c) dynarch.com 2002-2005 / Author: Mihai Bazon\n" + // don't translate this this ;-)
"For latest version visit: http://www.dynarch.com/projects/calendar/\n" +
"Distributed under GNU LGPL.  See http://gnu.org/licenses/lgpl.html for details." +
"\n\n" +
"Date selection:\n" +
"- Use the \xab, \xbb buttons to select year\n" +
"- Use the " + String.fromCharCode(0x2039) + ", " + String.fromCharCode(0x203a) + " buttons to select month\n" +
"- Hold mouse button on any of the above buttons for faster selection.";
Calendar._TT["ABOUT_TIME"] = "\n\n" +
"Time selection:\n" +
"- Click on any of the time parts to increase it\n" +
"- or Shift-click to decrease it\n" +
"- or click and drag for faster selection.";

Calendar._TT["PREV_YEAR"] = "Prev. year (hold for menu)";
Calendar._TT["PREV_MONTH"] = "Prev. month (hold for menu)";
Calendar._TT["GO_TODAY"] = "Go Today";
Calendar._TT["NEXT_MONTH"] = "Next month (hold for menu)";
Calendar._TT["NEXT_YEAR"] = "Next year (hold for menu)";
Calendar._TT["SEL_DATE"] = "Select date";
Calendar._TT["DRAG_TO_MOVE"] = "Drag to move";
Calendar._TT["PART_TODAY"] = " (today)";

// the following is to inform that "%s" is to be the first day of week
// %s will be replaced with the day name.
Calendar._TT["DAY_FIRST"] = "Display %s first";

// This may be locale-dependent.  It specifies the week-end days, as an array
// of comma-separated numbers.  The numbers are from 0 to 6: 0 means Sunday, 1
// means Monday, etc.
Calendar._TT["WEEKEND"] = "0,6";

Calendar._TT["CLOSE"] = "Close";
Calendar._TT["TODAY"] = "Today";
Calendar._TT["TIME_PART"] = "(Shift-)Click or drag to change value";

// date formats
Calendar._TT["DEF_DATE_FORMAT"] = "%Y-%m-%d";
Calendar._TT["TT_DATE_FORMAT"] = "%a, %b %e";

Calendar._TT["WK"] = "wk";
Calendar._TT["TIME"] = "Time:";


/*  Copyright Mihai Bazon, 2002, 2003  |  http://dynarch.com/mishoo/
 * ---------------------------------------------------------------------------
 *
 * The DHTML Calendar
 *
 * Details and latest version at:
 * http://dynarch.com/mishoo/calendar.epl
 *
 * This script is distributed under the GNU Lesser General Public License.
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
 *
 * This file defines helper functions for setting up the calendar.  They are
 * intended to help non-programmers get a working calendar on their site
 * quickly.  This script should not be seen as part of the calendar.  It just
 * shows you what one can do with the calendar, while in the same time
 * providing a quick and simple method for setting it up.  If you need
 * exhaustive customization of the calendar creation process feel free to
 * modify this code to suit your needs (this is recommended and much better
 * than modifying calendar.js itself).
 */

// $Id: calendar-setup.js,v 1.25 2005/03/07 09:51:33 mishoo Exp $

/**
 *  This function "patches" an input field (or other element) to use a calendar
 *  widget for date selection.
 *
 *  The "params" is a single object that can have the following properties:
 *
 *    prop. name   | description
 *  -------------------------------------------------------------------------------------------------
 *   inputField    | the ID of an input field to store the date
 *   displayArea   | the ID of a DIV or other element to show the date
 *   button        | ID of a button or other element that will trigger the calendar
 *   eventName     | event that will trigger the calendar, without the "on" prefix (default: "click")
 *   ifFormat      | date format that will be stored in the input field
 *   daFormat      | the date format that will be used to display the date in displayArea
 *   singleClick   | (true/false) wether the calendar is in single click mode or not (default: true)
 *   firstDay      | numeric: 0 to 6.  "0" means display Sunday first, "1" means display Monday first, etc.
 *   align         | alignment (default: "Br"); if you don't know what's this see the calendar documentation
 *   range         | array with 2 elements.  Default: [1900, 2999] -- the range of years available
 *   weekNumbers   | (true/false) if it's true (default) the calendar will display week numbers
 *   flat          | null or element ID; if not null the calendar will be a flat calendar having the parent with the given ID
 *   flatCallback  | function that receives a JS Date object and returns an URL to point the browser to (for flat calendar)
 *   disableFunc   | function that receives a JS Date object and should return true if that date has to be disabled in the calendar
 *   onSelect      | function that gets called when a date is selected.  You don't _have_ to supply this (the default is generally okay)
 *   onClose       | function that gets called when the calendar is closed.  [default]
 *   onUpdate      | function that gets called after the date is updated in the input field.  Receives a reference to the calendar.
 *   date          | the date that the calendar will be initially displayed to
 *   showsTime     | default: false; if true the calendar will include a time selector
 *   timeFormat    | the time format; can be "12" or "24", default is "12"
 *   electric      | if true (default) then given fields/date areas are updated for each move; otherwise they're updated only on close
 *   step          | configures the step of the years in drop-down boxes; default: 2
 *   position      | configures the calendar absolute position; default: null
 *   cache         | if "true" (but default: "false") it will reuse the same calendar object, where possible
 *   showOthers    | if "true" (but default: "false") it will show days from other months too
 *
 *  None of them is required, they all have default values.  However, if you
 *  pass none of "inputField", "displayArea" or "button" you'll get a warning
 *  saying "nothing to setup".
 */
Calendar.setup = function (params) {
	function param_default(pname, def) { if (typeof params[pname] == "undefined") { params[pname] = def; } };

	param_default("inputField",     null);
	param_default("displayArea",    null);
	param_default("button",         null);
	param_default("eventName",      "click");
	param_default("ifFormat",       "%Y/%m/%d");
	param_default("daFormat",       "%Y/%m/%d");
	param_default("singleClick",    true);
	param_default("disableFunc",    null);
	param_default("dateStatusFunc", params["disableFunc"]);	// takes precedence if both are defined
	param_default("dateText",       null);
	param_default("firstDay",       null);
	param_default("align",          "Br");
	param_default("range",          [1900, 2999]);
	param_default("weekNumbers",    true);
	param_default("flat",           null);
	param_default("flatCallback",   null);
	param_default("onSelect",       null);
	param_default("onClose",        null);
	param_default("onUpdate",       null);
	param_default("date",           null);
	param_default("showsTime",      false);
	param_default("timeFormat",     "24");
	param_default("electric",       true);
	param_default("step",           2);
	param_default("position",       null);
	param_default("cache",          false);
	param_default("showOthers",     false);
	param_default("multiple",       null);

	var tmp = ["inputField", "displayArea", "button"];
	for (var i in tmp) {
		if (typeof params[tmp[i]] == "string") {
			params[tmp[i]] = document.getElementById(params[tmp[i]]);
		}
	}
	if (!(params.flat || params.multiple || params.inputField || params.displayArea || params.button)) {
		alert("Calendar.setup:\n  Nothing to setup (no fields found).  Please check your code");
		return false;
	}

	function onSelect(cal) {
		var p = cal.params;
		var update = (cal.dateClicked || p.electric);
		if (update && p.inputField) {
			p.inputField.value = cal.date.print(p.ifFormat);
			if (typeof p.inputField.onchange == "function")
				p.inputField.onchange();
		}
		if (update && p.displayArea)
			p.displayArea.innerHTML = cal.date.print(p.daFormat);
		if (update && typeof p.onUpdate == "function")
			p.onUpdate(cal);
		if (update && p.flat) {
			if (typeof p.flatCallback == "function")
				p.flatCallback(cal);
		}
		if (update && p.singleClick && cal.dateClicked)
			cal.callCloseHandler();
	};

	if (params.flat != null) {
		if (typeof params.flat == "string")
			params.flat = document.getElementById(params.flat);
		if (!params.flat) {
			alert("Calendar.setup:\n  Flat specified but can't find parent.");
			return false;
		}
		var cal = new Calendar(params.firstDay, params.date, params.onSelect || onSelect);
		cal.showsOtherMonths = params.showOthers;
		cal.showsTime = params.showsTime;
		cal.time24 = (params.timeFormat == "24");
		cal.params = params;
		cal.weekNumbers = params.weekNumbers;
		cal.setRange(params.range[0], params.range[1]);
		cal.setDateStatusHandler(params.dateStatusFunc);
		cal.getDateText = params.dateText;
		if (params.ifFormat) {
			cal.setDateFormat(params.ifFormat);
		}
		if (params.inputField && typeof params.inputField.value == "string") {
			cal.parseDate(params.inputField.value);
		}
		cal.create(params.flat);
		cal.show();
		return false;
	}

	var triggerEl = params.button || params.displayArea || params.inputField;
	triggerEl["on" + params.eventName] = function() {
		var dateEl = params.inputField || params.displayArea;
		var dateFmt = params.inputField ? params.ifFormat : params.daFormat;
		var mustCreate = false;
		var cal = window.calendar;
		if (dateEl)
			params.date = Date.parseDate(dateEl.value || dateEl.innerHTML, dateFmt);
		if (!(cal && params.cache)) {
			window.calendar = cal = new Calendar(params.firstDay,
							     params.date,
							     params.onSelect || onSelect,
							     params.onClose || function(cal) { cal.hide(); });
			cal.showsTime = params.showsTime;
			cal.time24 = (params.timeFormat == "24");
			cal.weekNumbers = params.weekNumbers;
			mustCreate = true;
		} else {
			if (params.date)
				cal.setDate(params.date);
			cal.hide();
		}
		if (params.multiple) {
			cal.multiple = {};
			for (var i = params.multiple.length; --i >= 0;) {
				var d = params.multiple[i];
				var ds = d.print("%Y%m%d");
				cal.multiple[ds] = d;
			}
		}
		cal.showsOtherMonths = params.showOthers;
		cal.yearStep = params.step;
		cal.setRange(params.range[0], params.range[1]);
		cal.params = params;
		cal.setDateStatusHandler(params.dateStatusFunc);
		cal.getDateText = params.dateText;
		cal.setDateFormat(dateFmt);
		if (mustCreate)
			cal.create();
		cal.refresh();
		if (!params.position)
			cal.showAtElement(params.button || params.displayArea || params.inputField, params.align);
		else
			cal.showAt(params.position[0], params.position[1]);
		return false;
	};

	return cal;
};


/**
 * SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
 *
 * SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 */
if(typeof deconcept=="undefined"){var deconcept=new Object();}if(typeof deconcept.util=="undefined"){deconcept.util=new Object();}if(typeof deconcept.SWFObjectUtil=="undefined"){deconcept.SWFObjectUtil=new Object();}deconcept.SWFObject=function(_1,id,w,h,_5,c,_7,_8,_9,_a){if(!document.getElementById){return;}this.DETECT_KEY=_a?_a:"detectflash";this.skipDetect=deconcept.util.getRequestParameter(this.DETECT_KEY);this.params=new Object();this.variables=new Object();this.attributes=new Array();if(_1){this.setAttribute("swf",_1);}if(id){this.setAttribute("id",id);}if(w){this.setAttribute("width",w);}if(h){this.setAttribute("height",h);}if(_5){this.setAttribute("version",new deconcept.PlayerVersion(_5.toString().split(".")));}this.installedVer=deconcept.SWFObjectUtil.getPlayerVersion();if(!window.opera&&document.all&&this.installedVer.major>7){deconcept.SWFObject.doPrepUnload=true;}if(c){this.addParam("bgcolor",c);}var q=_7?_7:"high";this.addParam("quality",q);this.setAttribute("useExpressInstall",false);this.setAttribute("doExpressInstall",false);var _c=(_8)?_8:window.location;this.setAttribute("xiRedirectUrl",_c);this.setAttribute("redirectUrl","");if(_9){this.setAttribute("redirectUrl",_9);}};deconcept.SWFObject.prototype={useExpressInstall:function(_d){this.xiSWFPath=!_d?"expressinstall.swf":_d;this.setAttribute("useExpressInstall",true);},setAttribute:function(_e,_f){this.attributes[_e]=_f;},getAttribute:function(_10){return this.attributes[_10];},addParam:function(_11,_12){this.params[_11]=_12;},getParams:function(){return this.params;},addVariable:function(_13,_14){this.variables[_13]=_14;},getVariable:function(_15){return this.variables[_15];},getVariables:function(){return this.variables;},getVariablePairs:function(){var _16=new Array();var key;var _18=this.getVariables();for(key in _18){_16[_16.length]=key+"="+_18[key];}return _16;},getSWFHTML:function(){var _19="";if(navigator.plugins&&navigator.mimeTypes&&navigator.mimeTypes.length){if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","PlugIn");this.setAttribute("swf",this.xiSWFPath);}_19="<embed type=\"application/x-shockwave-flash\" src=\""+this.getAttribute("swf")+"\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\" style=\""+this.getAttribute("style")+"\"";_19+=" id=\""+this.getAttribute("id")+"\" name=\""+this.getAttribute("id")+"\" ";var _1a=this.getParams();for(var key in _1a){_19+=[key]+"=\""+_1a[key]+"\" ";}var _1c=this.getVariablePairs().join("&");if(_1c.length>0){_19+="flashvars=\""+_1c+"\"";}_19+="/>";}else{if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","ActiveX");this.setAttribute("swf",this.xiSWFPath);}_19="<object id=\""+this.getAttribute("id")+"\" classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\" style=\""+this.getAttribute("style")+"\">";_19+="<param name=\"movie\" value=\""+this.getAttribute("swf")+"\" />";var _1d=this.getParams();for(var key in _1d){_19+="<param name=\""+key+"\" value=\""+_1d[key]+"\" />";}var _1f=this.getVariablePairs().join("&");if(_1f.length>0){_19+="<param name=\"flashvars\" value=\""+_1f+"\" />";}_19+="</object>";}return _19;},write:function(_20){if(this.getAttribute("useExpressInstall")){var _21=new deconcept.PlayerVersion([6,0,65]);if(this.installedVer.versionIsValid(_21)&&!this.installedVer.versionIsValid(this.getAttribute("version"))){this.setAttribute("doExpressInstall",true);this.addVariable("MMredirectURL",escape(this.getAttribute("xiRedirectUrl")));document.title=document.title.slice(0,47)+" - Flash Player Installation";this.addVariable("MMdoctitle",document.title);}}if(this.skipDetect||this.getAttribute("doExpressInstall")||this.installedVer.versionIsValid(this.getAttribute("version"))){var n=(typeof _20=="string")?document.getElementById(_20):_20;n.innerHTML=this.getSWFHTML();if(!(navigator.plugins && navigator.mimeTypes.length)) window[this.getAttribute('id')] = document.getElementById(this.getAttribute('id'));return true;}else{if(this.getAttribute("redirectUrl")!=""){document.location.replace(this.getAttribute("redirectUrl"));}}return false;}};deconcept.SWFObjectUtil.getPlayerVersion=function(){var _23=new deconcept.PlayerVersion([0,0,0]);if(navigator.plugins&&navigator.mimeTypes.length){var x=navigator.plugins["Shockwave Flash"];if(x&&x.description){_23=new deconcept.PlayerVersion(x.description.replace(/([a-zA-Z]|\s)+/,"").replace(/(\s+r|\s+b[0-9]+)/,".").split("."));}}else{if(navigator.userAgent&&navigator.userAgent.indexOf("Windows CE")>=0){var axo=1;var _26=3;while(axo){try{_26++;axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+_26);_23=new deconcept.PlayerVersion([_26,0,0]);}catch(e){axo=null;}}}else{try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");}catch(e){try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");_23=new deconcept.PlayerVersion([6,0,21]);axo.AllowScriptAccess="always";}catch(e){if(_23.major==6){return _23;}}try{axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash");}catch(e){}}if(axo!=null){_23=new deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));}}}return _23;};deconcept.PlayerVersion=function(_29){this.major=_29[0]!=null?parseInt(_29[0]):0;this.minor=_29[1]!=null?parseInt(_29[1]):0;this.rev=_29[2]!=null?parseInt(_29[2]):0;};deconcept.PlayerVersion.prototype.versionIsValid=function(fv){if(this.major<fv.major){return false;}if(this.major>fv.major){return true;}if(this.minor<fv.minor){return false;}if(this.minor>fv.minor){return true;}if(this.rev<fv.rev){return false;}return true;};deconcept.util={getRequestParameter:function(_2b){var q=document.location.search||document.location.hash;if(_2b==null){return q;}if(q){var _2d=q.substring(1).split("&");for(var i=0;i<_2d.length;i++){if(_2d[i].substring(0,_2d[i].indexOf("="))==_2b){return _2d[i].substring((_2d[i].indexOf("=")+1));}}}return "";}};deconcept.SWFObjectUtil.cleanupSWFs=function(){var _2f=document.getElementsByTagName("OBJECT");for(var i=_2f.length-1;i>=0;i--){_2f[i].style.display="none";for(var x in _2f[i]){if(typeof _2f[i][x]=="function"){_2f[i][x]=function(){};}}}};if(deconcept.SWFObject.doPrepUnload){if(!deconcept.unloadSet){deconcept.SWFObjectUtil.prepUnload=function(){__flash_unloadHandler=function(){};__flash_savedUnloadHandler=function(){};window.attachEvent("onunload",deconcept.SWFObjectUtil.cleanupSWFs);};window.attachEvent("onbeforeunload",deconcept.SWFObjectUtil.prepUnload);deconcept.unloadSet=true;}}if(!document.getElementById&&document.all){document.getElementById=function(id){return document.all[id];};}var getQueryParamValue=deconcept.util.getRequestParameter;var FlashObject=deconcept.SWFObject;var SWFObject=deconcept.SWFObject;


/* -----------------------------------*/
/* --->>> onDOMReady Extension <<<----*/
/* -----------------------------------*/


Object.extend(Event, {
  _domReady : function() {
    if (arguments.callee.done) return;
    arguments.callee.done = true;

    if (this._timer)  clearInterval(this._timer);
    
    this._readyCallbacks.each(function(f) { f() });
    this._readyCallbacks = null;
},
  onDOMReady : function(f) {
    if (!this._readyCallbacks) {
      var domReady = this._domReady.bind(this);
      
      if (document.addEventListener)
        document.addEventListener("DOMContentLoaded", domReady, false);
        
        /*@cc_on @*/
        /*@if (@_win32)
            document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
            document.getElementById("__ie_onload").onreadystatechange = function() {
                if (this.readyState == "complete") domReady(); 
            };
        /*@end @*/
        
        if (/WebKit/i.test(navigator.userAgent)) { 
          this._timer = setInterval(function() {
            if (/loaded|complete/.test(document.readyState)) domReady(); 
          }, 10);
        }
        
        Event.observe(window, 'load', domReady);
        Event._readyCallbacks =  [];
    }
    Event._readyCallbacks.push(f);
  }
});


//TableKit.options.minWidth = "10px";
TableKit.Sortable.addSortType(
  new TableKit.Sortable.Type('loc_number', {
    pattern : /[\-\+]?\d+(\.?\d+)*(,\d+)?/,
    normal : function(v) {
      if (typeof(v) == "undefined") return -999999999999999999;
      result = v.match(/[\-\+]?(\d|\.)+(,\d+)?/)
      if (result == null || result.length == 0) return -999999999999999999
      v = parseFloat( result[0].replace(/\./g,'').replace(',','.') );
      return isNaN(v) ? -999999999999999999 : v;
    }
  })
);
TableKit.Sortable.addSortType(
  new TableKit.Sortable.Type('loc_date', {
    pattern : /(\d{1,2})\.(\d{1,2})\.(\d{2,4})/,
    normal : function(v) {
      if (typeof(v) == "undefined") return -999999999999999999;
      result = v.match(/(\d{1,2})\.(\d{1,2})\.(\d{2,4})/);
      if (result == null || result.length == 0) return -999999999999999999
      if (result[1].length == 1) result[1] = "0" + result[1]
      if (result[2].length == 1) result[2] = "0" + result[2]
      return parseInt( result[3]+result[2]+result[1] );
    }
  })
);
TableKit.Sortable.addSortType(
  new TableKit.Sortable.Type('loc_date_time', {
    pattern : /(\d{1,2})\.(\d{1,2})\.(\d{2,4})\s+(\d{2}):(\d{2})/,
    normal : function(v) {
      if (typeof(v) == "undefined") return -999999999999999999;
      result = v.match(/(\d{1,2})\.(\d{1,2})\.(\d{2,4})\s+(\d{2}):(\d{2})/);
      if (result == null || result.length == 0) return -999999999999999999
      if (result[1].length == 1) result[1] = "0" + result[1]
      if (result[2].length == 1) result[2] = "0" + result[2]
      return parseInt( result[3]+result[2]+result[1] + result[4]+result[5] );
    }
  })
);

var Investoo = {
  ajaxifyLinks: function( links, target ) {
    links.each( function( link ) {
      Event.observe( link, 'click', function( ev ) {
        Investoo.setupIndicator(link);
        var url = link.href;
        link.remove();
        new Ajax.Request( url, { method: 'get', parameters: "format=json", onComplete: function( xhr ) {
            if (xhr.responseJSON == null)
              $(target).replace( xhr.responseHTML );
            else if (xhr.responseJSON.url != null)
                window.location = xhr.responseJSON.url;
            else
              $(target).replace( xhr.responseJSON.html );
        } } )
        Event.stop(ev);
      } )
    } );      
  },
  
  ajaxifyLinksWithForm: function( link, form, target, useLinkAction ) {
      link.observe( 'click', function( ev ) {
        Investoo.setupIndicator(link);
        if (typeof(useLinkAction) != "undefined"  &&  useLinkAction)
            $(form).action = link.href;
        link.remove();
        var f = $(form);
        var params = f.serialize(true);
        params['format'] = 'json';
        new Ajax.Request( f.action, { method: f.method, parameters: params, onComplete: function( xhr ) {
            if (xhr.responseJSON == null)
              $(target).replace( xhr.responseHTML );
            else if (xhr.responseJSON.url != null)
                window.location = xhr.responseJSON.url;
            else
              $(target).replace( xhr.responseJSON.html );
        } } )
        Event.stop(ev);
      } );
  },
  
  setupIndicator: function( after, takeDims, takeClasses ) {
    if (typeof(takeDims) == "undefined") takeDims = true;
    if (typeof(takeClasses) == "undefined") takeClasses = true;
    after.insert( { after: '<span class="inline_indicator"/>' } );    
    if (takeDims) after.next().style.width = after.getDimensions().width + "px";
    if (takeClasses) $w(after.className).each( function(className) { after.next().addClassName(className); } );
  },
  
  postizeLinks: function() {
    $$('a.post').invoke( 'observe', 'click', function(ev) {
      Event.stop(ev);
      f = document.createElement('form');
      f.style.display = "none";
      f.action = ev.target.href;
      f.method = 'post';
      document.body.appendChild(f);
      f.submit();
    } );
  },
  
  initFormattingHelp: function() {
    $$('#formatting_help_btn').invoke('observe', 'click', function(ev) {
      Event.stop(ev);
      Effect.toggle('formatting_help', 'blind', { duration:0.3 });
    } );
  },
  
  togglize: function( trigger, content ) {
    trigger = $(trigger)
    if (trigger != null) trigger.observe( 'click', function(ev) {
      Event.stop(ev);
      Effect.toggle(content, 'blind', { duration:0.3 });
    } );
  },
  
  prefillFormFields: function( selector, defaults ) {
    $$(selector).each( function(input) {
      input.observe( 'focus', function( ev ) {
        if (defaults[input.id] != null  &&  defaults[input.id] == input.value) input.value = "";
      } );
      input.observe( 'blur', function( ev ) {
        if (defaults[input.id] != null  &&  (input.value == null  ||  input.value == ""))
            input.value = defaults[input.id];
      } );
      if (defaults[input.id] != null  &&  (input.value == null  ||  input.value == ""))
        input.value = defaults[input.id];
    } );
  },
  
  clearFormFields: function( selector, defaults ) {
    $$(selector).each( function(input) {
        if ( input.id && input.value == defaults[input.id] )
          input.value = "";
    } );
  }

}

var Stories = {
  init: function() {
    // ajax-enable stories tabs
    Investoo.ajaxifyLinksWithForm( $('new_story_btn'), 'new_story_form', 'stories');
    Investoo.ajaxifyLinks( $$('#stories .tab a').splice(0,8), 'stories');
    Investoo.ajaxifyLinks( $$('#stories .pagination a'), 'stories');
  },

  initForm: function( new_story ) {
    Investoo.initFormattingHelp();
    Investoo.ajaxifyLinksWithForm( $('article_story_btn'), 'story_form', 'story', true );
    Investoo.ajaxifyLinksWithForm( $('discussion_story_btn'), 'story_form', 'story', true );
    Investoo.ajaxifyLinksWithForm( $('save_story_btn'), 'story_form', 'story');
    if (new_story)
        Investoo.ajaxifyLinks( $$('#cancel_story_btn'), 'story');
    //Investoo.initFormattingHelp();
    if ($('story_url').parentNode.style.display == 'none')
      $('story_title').focus();
    else
      $('story_url').focus();
  },
  
  initOverview: function( permalink, vote_path ) {
    TickerTips.initLatestDataTips('#' +permalink+ ' .tags a.tck');
    //ajaxify votes link
    $$('#'+permalink+' .votes.button').each( function( voteElement ) {
      voteElement.observe( 'click', function( ev ) {
        voteElement.hide();
        voteElement.next().show();
        new Ajax.Request( vote_path, { method: 'post', onComplete: function( xhr ) {
          Element.replace( $(permalink), xhr.responseText );
        } } )
        Event.stop(ev);
      } )
    } );    
    $$('#'+permalink+' .bottomline.msg').each( function( el ) {
      Effect.Fade( el, { delay: 1.5, duration: 1, afterFinish: function() {
        el.previous().show();
      } } );
    } );
  }

//  initStory: function(permalink) {
    //ajaxify votes link
//    $$('#story .btn.vote').each( function( voteElement ) {
//      voteElement.observe( 'click', function( ev ) {
//        Event.stop(ev);
//        $('vote_'+permalink).submit();
//      } )
//    } );
//    $$('#story .vote.msg').each( function( el ) {
//      //Effect.Fade( el, { delay: 1.5, duration: 1 } );
//    } );
//  } 
}

var Watchlist = {
  initFocusPie: function( data_url, markets_count ) {
    var so = new SWFObject("/resources/amcharts/ampie.swf", "flash_chart", "210", 170+ Math.round(markets_count/2)*26, "8", "#FFFFFF");
    so.addVariable("path", "/resources/amcharts/");
    so.addVariable("chart_id", "chart1");
    so.addVariable("settings_file", "/resources/amcharts/settings/watchlist_focus_pie.xml");
    so.addVariable("data_file", escape(data_url) );
    so.addVariable("preloader_color", "#000000");
    so.addParam("wmode", "opaque");
    so.write('flash_content');   
  }  
}

var Portfolios = {
  init: function( selector, defaults ) {
    Investoo.prefillFormFields( selector, defaults );      
    $$('#portfolios .line .buttons input').invoke( 'observe', 'click', function( ev ) {
      Investoo.clearFormFields( selector, defaults );
    } );
  },

  initPieChart: function( data_url ) {    
    var so = new SWFObject("/resources/amcharts/ampie.swf", "flash_chart", "480", "360", "8", "#FFFFFF");
    so.addVariable("path", "/resources/amcharts/");
    so.addVariable("chart_id", "chart1");
    so.addVariable("settings_file", "/resources/amcharts/settings/portfolio_structure_pie.xml");
    so.addVariable("data_file", escape(data_url) );
    so.addVariable("preloader_color", "#000000");
    so.write('flash_content');   
    Portfolios.setupChartBtn( 'structure_by_stock', escape(data_url+'?mode=by_stock') ) ;
    Portfolios.setupChartBtn( 'structure_by_market', escape(data_url+'?mode=by_market') );
    Portfolios.setupChartBtn( 'structure_by_position', escape(data_url+'?mode=by_position') );
  },
  
  setupChartBtn: function( btn_id, reload_url ) {
    Event.observe( $(btn_id), 'click', function( ev ) {
      Element.removeClassName( $('structure_by_stock'), 'active' )
      Element.removeClassName( $('structure_by_market'), 'active' )
      Element.removeClassName( $('structure_by_position'), 'active' )
      Element.addClassName( $(btn_id), 'active' )
      chart = $('flash_chart');
      chart.reloadData( reload_url, true );
      Event.stop(ev);      
    } );
  }
}

var TickerCloud = {
  init: function( id, date, cached ) {
    //Event.onDOMReady( function() {
    $$('#'+id+' a.tck').each( function( element ) {
      if (cached) {
        if ( element.next().hasClassName('tip_holder') )
          new Tip( element, element.next().innerHTML, { delay: 0.3 } );
      } else {
          var info_url = element.href +'/info?date='+date
          var ajax_stuff = { url: info_url, options: { method : 'get' } }
          new Tip( element, { delay: 0.3, ajax: ajax_stuff } );          
      }
  } );
  //} );
  }
}

var TickerTips = {
  initLatestDataTips: function( els_pattern ) {
    $$(els_pattern).each( function( element ) {
      var info_url = element.href + '/info';
      var ajax_stuff = { url: info_url, options: { method : 'get' } };
      new Tip( element, { delay: 0.3, ajax: ajax_stuff } );
  } );
  }
}

var StockChart = {
  initNew: function( title, ticker, data_url, volume ) {
    var so = new SWFObject("/resources/amcharts/amstock.swf", "amstock", "720", (volume ? "320" : "240"), "8", "#FFFFFF");
    if (volume) so.addVariable("settings_file", "/resources/amcharts/settings/new_stock_chart.xml");
    else so.addVariable("settings_file", "/resources/amcharts/settings/new_value_chart.xml");
    so.addVariable("data_file", data_url);
    so.addVariable("preloader_color", "#000000");
    so.addParam("wmode", "opaque");
    
    var settings = "<settings><data_sets><data_set>";
    settings += "<title>" +title+ "</title>";
    settings += "<short>" +ticker+ "</short>";
    settings += "<file_name>" +data_url+ "</file_name>";
    settings += "<color>0066DD</color>";
    settings += "<csv>"
    settings += "<columns><column>date</column><column>close</column>";
    if (volume) settings += "<column>volume</column>";
    settings += "</columns><separator>;</separator>";
    settings += "<date_format>DD.MM.YYYY</date_format><decimal_separator>,</decimal_separator>";  
    settings += "</csv>";
    settings += "</data_set></data_sets></settings>";
    so.addVariable("additional_chart_settings", settings );
    so.write('flashchart');
  },
  
  initNewIndices: function( data_url, indices, volume ) {
    var so = new SWFObject("/resources/amcharts/amstock.swf", "amstock", "720", (volume ? "320" : "240"), "8", "#FFFFFF");
    //if (volume) so.addVariable("settings_file", "/resources/amcharts/settings/new_stock_chart.xml");
    so.addVariable("settings_file", "/resources/amcharts/settings/new_indices_chart.xml");
    so.addVariable("data_file", data_url);
    so.addVariable("preloader_color", "#000000");
    so.addParam("wmode", "opaque");
    
    var settings = "<settings>";
    settings += "<data_sets>";
    for (i=1; i<=indices; i++) {
      settings += "<data_set>";
      settings += "<title>IDX" +i+ "</title>";
      settings += "<short>IDX" +i+ "</short>";
      settings += "<file_name>" +data_url+ "</file_name>";
      settings += "<color>" +i+ "066D" +i+"D</color>";
      settings += "<csv>"
      settings += "<columns><column>date</column><column>i" +i+ "</column><column>i" +(i-1)+ "</column><column>i"+(i-2)+"</column><column>i"+(i-4)+"</column>"
      settings += "<column>i"+(i-5)+"</column><column>i"+(i-6)+"</column><column>i"+(i-7)+"</column></columns><separator>;</separator>";
      settings += "<date_format>DD.MM.YYYY</date_format><decimal_separator>,</decimal_separator>";  
      settings += "</csv>";
      settings += "</data_set>";
    }
    settings += "</data_sets>";
  
    settings += "<charts>";
      settings += "<chart>";
      settings += "<height>60</height><bg_color>ffffff,f5f5f5</bg_color><border_color>#CCCCCC</border_color><border_alpha>0</border_alpha>";
      settings += "<values><x><bg_color>FFFFFF</bg_color></x></values>"
      settings += "<grid><x><enabled>true</enabled><alpha>20</alpha><dashed>true</dashed></x>";
      settings += "<y_left><enabled>true</enabled><alpha>10</alpha><dashed>true</dashed><approx_count>5</approx_count></y_left></grid>";
      settings += "<legend><positive_color>008000</positive_color><negative_color>db4c3c</negative_color><show_date>true</show_date></legend>"
      settings += "<graphs>";
      settings += "<graph>";
      settings += "<type>line</type>";
      settings += "<fill_alpha>0</fill_alpha>";
      settings += "<data_sources><close>i1</close></data_sources><compare_source>i1</compare_source>";
      settings += "<legend>";
      settings += "<date><![CDATA[ <b>{close}<b/>]]></date>";
      settings += "<period><![CDATA[ <b>{close}<b/><b>{close.percents}<b/>]]></period>";
      settings += "<date_comparing><![CDATA[{close.percents}]]></date_comparing>";
      settings += "<period_comparing><![CDATA[{close.percents}]]></period_comparing>";
      settings += "</legend>";
      settings += "</graph></graphs></chart>";
    settings += "</charts>";
    settings += "</settings>";
    
    so.addVariable("additional_chart_settings", settings );
    so.write('flashchart');
  },
  
  initIndices: function( data_url, indices, volume ) {
    var so = new SWFObject("/resources/amcharts/amline.swf", "flash_chart", "758", "148", "8", "#FFFFFF");
    so.addVariable("path", "/resources/amcharts/");
    so.addVariable("chart_id", "chart1");
    so.addVariable("settings_file", "/resources/amcharts/settings/indices_chart.xml");
    so.addVariable("data_file", data_url +'?period=month');
    so.addVariable("preloader_color", "#000000");
    so.addParam("wmode", "opaque");
    var settings = "<settings>"
    if ( indices <6 )
      settings += "<legend><y>10</y><spacing>6</spacing></legend>";
    if ( volume )
      settings += "<width>660</width>";
    settings += "</settings>";
    so.addVariable("additional_chart_settings", settings );
    so.write('flashchart');
    this.setupChartBtn( 'chart_month_btn', data_url +'?period=month');
    this.setupChartBtn( 'chart_3_months_btn', data_url +'?period=months_3');
    this.setupChartBtn( 'chart_6_months_btn', data_url +'?period=months_6');
  },
    
  initTags: function( data_url, tags ) {
    var so = new SWFObject("/resources/amcharts/amline.swf", "flash_chart", "758", "148", "8", "#FFFFFF");
    so.addVariable("path", "/resources/amcharts/");
    so.addVariable("chart_id", "chart1");
    so.addVariable("settings_file", "/resources/amcharts/settings/indices_chart.xml");
    so.addVariable("data_file", data_url +'?period=month');
    so.addVariable("preloader_color", "#000000");
    so.addParam("wmode", "opaque");
    if ( tags <6 ) {
      var settings = "<settings>"
      settings += "<legend><y>10</y><spacing>6</spacing></legend>";
      settings += "</settings>";
      so.addVariable("additional_chart_settings", settings );
    }
    so.write('flash_content');
    this.setupChartBtn( 'chart_month_btn', data_url +'?period=month');
    this.setupChartBtn( 'chart_3_months_btn', data_url +'?period=months_3');
    this.setupChartBtn( 'chart_6_months_btn', data_url +'?period=months_6');
  },
  
  setupChartBtn: function( btn_id, reload_url ) {
    Event.observe( $(btn_id), 'click', function( ev ) {
      Element.removeClassName( $('chart_month_btn'), 'active' )
      Element.removeClassName( $('chart_3_months_btn'), 'active' )
      Element.removeClassName( $('chart_6_months_btn'), 'active' )
      Element.removeClassName( $('chart_year_btn'), 'active' )
      Element.removeClassName( $('chart_all_btn'), 'active' )
      Element.addClassName( $(btn_id), 'active' )
      chart = $('flash_chart');
      chart.reloadData( reload_url, true );
      Event.stop(ev);      
    } );
  }
}

var PreloadedTabs = {
  init: function( link_selector, div_selector ) {
    var links = $$( link_selector )
    var divs = $$( div_selector )
    for ( i=0; i<links.size(); i++ ) {
      this.setupTabLink( i, links, divs );
    }
  },
  
  setupTabLink: function( idx, links, divs ) {
    if (links.size() > idx  &&  divs.size() > idx)
      Event.observe( links[idx], 'click', function( ev ) {
        links.each( function(link) { Element.removeClassName( link.parentNode, 'active' ) } )
        Element.addClassName( links[idx].parentNode, 'active' )
        divs.each( function(div) { div.hide() } )
        divs[idx].show()
        Event.stop(ev);      
      } );
  }
}


var Menu = {    
//  status: null,
//  initialStatus: null,
  
  init: function() {
    var menu = $$('#menu ul.menu')[0];
    var root_li = menu.select('li');
    for (var i = 0; i < root_li.length; i++) {
      var li = root_li[i];
      li.onmouseover = function () {
        this.addClassName("active");
        var ul = this.getElementsByTagName("ul")[0];
        if (ul) ul.style.display = "block";
//          if (ul.className == 'mdomov') {
//            ul.parentNode.className = 'cez_domov';
//          } else if (ul.className == 'torrenti') {
//            ul.parentNode.className = 'cez_torrenti';
//          } else {
//            ul.parentNode.className = 'cez1';
//          }
        return true;
      }

      li.onmouseout = function () {
        this.removeClassName("active");
        var ul = this.getElementsByTagName("ul")[0];
        if (ul) ul.style.display = "none";          
        return true;
      }
    }
    return true;
  }
}

var Search = {
  init: function( formId, triggerId, stocksRadioId, stocksSearchUrl, storiesRadioId, storiesSearchUrl ) {
    $(triggerId).observe( 'click', function( ev ) { $(formId).submit(); } );    
    $(stocksRadioId).observe( 'click', function( ev ) { $(formId).action = stocksSearchUrl; } );    
    $(storiesRadioId).observe( 'click', function( ev ) { $(formId).action = storiesSearchUrl; } );    
  },
  goto: function( element, selected ) {
    window.location = selected.select( '.stock_url' )[0].href
  }
}

var TradingDate = {
  initWithButton: function( formId, fieldId, displayId, submitButtonId ) {
    Calendar.setup( {
      electric: false,
      inputField: fieldId,
      displayArea: displayId,
      daFormat: "%d.%m.%Y",
      ifFormat: "%d.%m.%Y",
      button: displayId,
      align: "Bl",
      weekNumbers: false,
      dateStatusFunc: TradingDate.dateStatusHandler
    } );
    $(submitButtonId).observe( 'click', function( ev ) { $(formId).submit(); } );
  },

  init: function( formId, fieldId, displayId ) {
    Calendar.setup( {
      electric: false,
      inputField: fieldId,
      //displayArea: displayId,
      //daFormat: "%e. %B %Y",
      ifFormat: "%e.%m.%Y",
      button: displayId,
      align: "Bl",
      weekNumbers: false,
      onUpdate: function() { window.location = $(formId).action + 'date=' + $(formId).date.value },
      dateStatusFunc: TradingDate.dateStatusHandler
    } );
    if ($('data_refresh_info_btn')) {
      var el =  $('data_refresh_info_btn');
      new Tip( el, el.next().innerHTML, { className:'info', delay: 0, hideAfter: 1 } );
    }
  },

  dateStatusHandler: function( date, y, m, d ) {
    nonWorkingDay = date.getDay() == 0  ||  date.getDay() == 6
    greaterThanToday = date > new Date();
    if ( nonWorkingDay || greaterThanToday )
      return true;
    else
      return false;
  }
}

var Registrations = {
  init: function( form, portlet ) {
    $$('#'+form+ ' .buttons input').invoke( 'observe', 'click', function(ev) {
      Event.stop(ev);
      new Ajax.Request( $(form).action, { method: 'post', parameters: $(form).serialize(true), onComplete: function( xhr ) {
           Element.replace( $(portlet), xhr.responseText );
     } } );
    } );
  }
}