var Prototype = {Version: '1.5.0',BrowserFeatures: {XPath: !!document.evaluate},ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',emptyFunction: function() {},K: function(x) { return x; }}
var Class = {create: function() {return function() {this.initialize.apply(this, arguments);}}}
var Abstract = new Object();Object.extend = function(destination, source) {for (var property in source) {destination[property] = source[property];}return destination;}
Object.extend(Object, {inspect: function(object) {try {if (object === undefined) return 'undefined';if (object === null) return 'null';return object.inspect ? object.inspect() : object.toString();} catch (e) {if (e instanceof RangeError) return '...';throw e;}},keys: function(object) {var keys = [];for (var property in object)
keys.push(property);return keys;},values: function(object) {var values = [];for (var property in object)
values.push(object[property]);return values;},clone: function(object) {return Object.extend({}, object);}});Function.prototype.bind = function() {var __method = this, args = $A(arguments), object = args.shift();return function() {return __method.apply(object, args.concat($A(arguments)));}}
Function.prototype.bindAsEventListener = function(object) {var __method = this, args = $A(arguments), object = args.shift();return function(event) {return __method.apply(object, [( event || window.event)].concat(args).concat($A(arguments)));}}
Object.extend(Number.prototype, {toColorPart: function() {var digits = this.toString(16);if (this < 16) return '0' + digits;return digits;},succ: function() {return this + 1;},times: function(iterator) {$R(0, this, true).each(iterator);return this;}});var Try = {these: function() {var returnValue;for (var i = 0, length = arguments.length; i < length; i++) {var lambda = arguments[i];try {returnValue = lambda();break;} catch (e) {}}
return returnValue;}}
var PeriodicalExecuter = Class.create();PeriodicalExecuter.prototype = {initialize: function(callback, frequency) {this.callback = callback;this.frequency = frequency;this.currentlyExecuting = false;this.registerCallback();},registerCallback: function() {this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);},stop: function() {if (!this.timer) return;clearInterval(this.timer);this.timer = null;},onTimerEvent: function() {if (!this.currentlyExecuting) {try {this.currentlyExecuting = true;this.callback(this);} finally {this.currentlyExecuting = false;}}}}
String.interpret = function(value){return value == null ? '' : String(value);}
Object.extend(String.prototype, {gsub: function(pattern, replacement) {var result = '', source = this, match;replacement = arguments.callee.prepareReplacement(replacement);while (source.length > 0) {if (match = source.match(pattern)) {result += source.slice(0, match.index);result += String.interpret(replacement(match));source  = source.slice(match.index + match[0].length);} else {result += source, source = '';}}
return result;},sub: function(pattern, replacement, count) {replacement = this.gsub.prepareReplacement(replacement);count = count === undefined ? 1 : count;return this.gsub(pattern, function(match) {if (--count < 0) return match[0];return replacement(match);});},scan: function(pattern, iterator) {this.gsub(pattern, iterator);return this;},truncate: function(length, truncation) {length = length || 30;truncation = truncation === undefined ? '...' : truncation;return this.length > length ?
this.slice(0, length - truncation.length) + truncation : this;},strip: function() {return this.replace(/^\s+/, '').replace(/\s+$/, '');},stripTags: function() {return this.replace(/<\/?[^>]+>/gi, '');},stripScripts: function() {return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');},extractScripts: function() {var matchAll = new RegExp(Prototype.ScriptFragment, 'img');var matchOne = new RegExp(Prototype.ScriptFragment, 'im');return (this.match(matchAll) || []).map(function(scriptTag) {return (scriptTag.match(matchOne) || ['', ''])[1];});},evalScripts: function() {return this.extractScripts().map(function(script) { return eval(script) });},escapeHTML: function() {var div = document.createElement('div');var text = document.createTextNode(this);div.appendChild(text);return div.innerHTML;},unescapeHTML: function() {var div = document.createElement('div');div.innerHTML = this.stripTags();return div.childNodes[0] ? (div.childNodes.length > 1 ?
$A(div.childNodes).inject('',function(memo,node){ return memo+node.nodeValue }) :
div.childNodes[0].nodeValue) : '';},toQueryParams: function(separator) {var match = this.strip().match(/([^?#]*)(#.*)?$/);if (!match) return {};return match[1].split(separator || '&').inject({}, function(hash, pair) {if ((pair = pair.split('='))[0]) {var name = decodeURIComponent(pair[0]);var value = pair[1] ? decodeURIComponent(pair[1]) : undefined;if (hash[name] !== undefined) {if (hash[name].constructor != Array)
hash[name] = [hash[name]];if (value) hash[name].push(value);}
else hash[name] = 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);},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.replace(/\\/g, '\\\\');if (useDoubleQuotes)
return '"' + escapedString.replace(/"/g, '\\"') + '"';else
return "'" + escapedString.replace(/'/g, '\\\'') + "'";}});String.prototype.gsub.prepareReplacement = function(replacement) {if (typeof replacement == 'function') return replacement;var template = new Template(replacement);return function(match) { return template.evaluate(match) };}
String.prototype.parseQuery = String.prototype.toQueryParams;var Template = Class.create();Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;Template.prototype = {initialize: function(template, pattern) {this.template = template.toString();this.pattern  = pattern || Template.Pattern;},evaluate: function(object) {return this.template.gsub(this.pattern, function(match) {var before = match[1];if (before == '\\') return match[2];return before + String.interpret(object[match[3]]);});}}
var $break    = new Object();var $continue = new Object();var Enumerable = {each: function(iterator) {var index = 0;try {this._each(function(value) {try {iterator(value, index++);} catch (e) {if (e != $continue) throw e;}});} catch (e) {if (e != $break) throw e;}
return this;},eachSlice: function(number, iterator) {var index = -number, slices = [], array = this.toArray();while ((index += number) < array.length)
slices.push(array.slice(index, index+number));return slices.map(iterator);},all: function(iterator) {var result = true;this.each(function(value, index) {result = result && !!(iterator || Prototype.K)(value, index);if (!result) throw $break;});return result;},any: function(iterator) {var result = false;this.each(function(value, index) {if (result = !!(iterator || Prototype.K)(value, index))
throw $break;});return result;},collect: function(iterator) {var results = [];this.each(function(value, index) {results.push((iterator || Prototype.K)(value, index));});return results;},detect: function(iterator) {var result;this.each(function(value, index) {if (iterator(value, index)) {result = value;throw $break;}});return result;},findAll: function(iterator) {var results = [];this.each(function(value, index) {if (iterator(value, index))
results.push(value);});return results;},grep: function(pattern, iterator) {var results = [];this.each(function(value, index) {var stringValue = value.toString();if (stringValue.match(pattern))
results.push((iterator || Prototype.K)(value, index));})
return results;},include: function(object) {var found = false;this.each(function(value) {if (value == object) {found = true;throw $break;}});return found;},inGroupsOf: function(number, fillWith) {fillWith = fillWith === undefined ? null : fillWith;return this.eachSlice(number, function(slice) {while(slice.length < number) slice.push(fillWith);return slice;});},inject: function(memo, iterator) {this.each(function(value, index) {memo = iterator(memo, value, index);});return memo;},invoke: function(method) {var args = $A(arguments).slice(1);return this.map(function(value) {return value[method].apply(value, args);});},max: function(iterator) {var result;this.each(function(value, index) {value = (iterator || Prototype.K)(value, index);if (result == undefined || value >= result)
result = value;});return result;},min: function(iterator) {var result;this.each(function(value, index) {value = (iterator || Prototype.K)(value, index);if (result == undefined || value < result)
result = value;});return result;},partition: function(iterator) {var trues = [], falses = [];this.each(function(value, index) {((iterator || Prototype.K)(value, index) ?
trues : falses).push(value);});return [trues, falses];},pluck: function(property) {var results = [];this.each(function(value, index) {results.push(value[property]);});return results;},reject: function(iterator) {var results = [];this.each(function(value, index) {if (!iterator(value, index))
results.push(value);});return results;},sortBy: function(iterator) {return this.map(function(value, index) {return {value: value, criteria: iterator(value, index)};}).sort(function(left, right) {var a = left.criteria, b = right.criteria;return a < b ? -1 : a > b ? 1 : 0;}).pluck('value');},toArray: function() {return this.map();},zip: function() {var iterator = Prototype.K, args = $A(arguments);if (typeof args.last() == 'function')
iterator = args.pop();var collections = [this].concat(args).map($A);return this.map(function(value, index) {return iterator(collections.pluck(index));});},size: function() {return this.toArray().length;},inspect: function() {return '#<Enumerable:' + this.toArray().inspect() + '>';}}
Object.extend(Enumerable, {map:     Enumerable.collect,find:    Enumerable.detect,select:  Enumerable.findAll,member:  Enumerable.include,entries: Enumerable.toArray});var $A = Array.from = function(iterable) {if (!iterable) return [];if (iterable.toArray) {return iterable.toArray();} else {var results = [];for (var i = 0, length = iterable.length; i < length; i++)
results.push(iterable[i]);return results;}}
Object.extend(Array.prototype, Enumerable);if (!Array.prototype._reverse)
Array.prototype._reverse = Array.prototype.reverse;Object.extend(Array.prototype, {_each: function(iterator) {for (var i = 0, length = this.length; i < length; i++)
iterator(this[i]);},clear: function() {this.length = 0;return this;},first: function() {return this[0];},last: function() {return this[this.length - 1];},compact: function() {return this.select(function(value) {return value != null;});},flatten: function() {return this.inject([], function(array, value) {return array.concat(value && value.constructor == Array ?
value.flatten() : [value]);});},without: function() {var values = $A(arguments);return this.select(function(value) {return !values.include(value);});},indexOf: function(object) {for (var i = 0, length = this.length; i < length; i++)
if (this[i] == object) return i;return -1;},reverse: function(inline) {return (inline !== false ? this : this.toArray())._reverse();},reduce: function() {return this.length > 1 ? this : this[0];},uniq: function() {return this.inject([], function(array, value) {return array.include(value) ? array : array.concat([value]);});},clone: function() {return [].concat(this);},size: function() {return this.length;},inspect: function() {return '[' + this.map(Object.inspect).join(', ') + ']';}});Array.prototype.toArray = Array.prototype.clone;function $w(string){string = string.strip();return string ? string.split(/\s+/) : [];}
if(window.opera){Array.prototype.concat = function(){var array = [];for(var i = 0, length = this.length; i < length; i++) array.push(this[i]);for(var i = 0, length = arguments.length; i < length; i++) {if(arguments[i].constructor == Array) {for(var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
array.push(arguments[i][j]);} else {array.push(arguments[i]);}}
return array;}}
var Hash = function(obj) {Object.extend(this, obj || {});};Object.extend(Hash, {toQueryString: function(obj) {var parts = [];	  this.prototype._each.call(obj, function(pair) {if (!pair.key) return;if (pair.value && pair.value.constructor == Array) {var values = pair.value.compact();if (values.length < 2) pair.value = values.reduce();else {	key = encodeURIComponent(pair.key);values.each(function(value) {value = value != undefined ? encodeURIComponent(value) : '';parts.push(key + '=' + encodeURIComponent(value));});return;}}
if (pair.value == undefined) pair[1] = '';parts.push(pair.map(encodeURIComponent).join('='));	  });return parts.join('&');}});Object.extend(Hash.prototype, Enumerable);Object.extend(Hash.prototype, {_each: function(iterator) {for (var key in this) {var value = this[key];if (value && value == Hash.prototype[key]) continue;var pair = [key, value];pair.key = key;pair.value = value;iterator(pair);}},keys: function() {return this.pluck('key');},values: function() {return this.pluck('value');},merge: function(hash) {return $H(hash).inject(this, function(mergedHash, pair) {mergedHash[pair.key] = pair.value;return mergedHash;});},remove: function() {var result;for(var i = 0, length = arguments.length; i < length; i++) {var value = this[arguments[i]];if (value !== undefined){if (result === undefined) result = value;else {if (result.constructor != Array) result = [result];result.push(value)}}
delete this[arguments[i]];}
return result;},toQueryString: function() {return Hash.toQueryString(this);},inspect: function() {return '#<Hash:{' + this.map(function(pair) {return pair.map(Object.inspect).join(': ');}).join(', ') + '}>';}});function $H(object) {if (object && object.constructor == Hash) return object;return new Hash(object);};ObjectRange = Class.create();Object.extend(ObjectRange.prototype, Enumerable);Object.extend(ObjectRange.prototype, {initialize: function(start, end, exclusive) {this.start = start;this.end = end;this.exclusive = exclusive;},_each: function(iterator) {var value = this.start;while (this.include(value)) {iterator(value);value = value.succ();}},include: function(value) {if (value < this.start)
return false;if (this.exclusive)
return value < this.end;return value <= this.end;}});var $R = function(start, end, exclusive) {return new ObjectRange(start, end, exclusive);}
var Ajax = {getTransport: function() {return Try.these(
function() {return new XMLHttpRequest()},function() {return new ActiveXObject('Msxml2.XMLHTTP')},function() {return new ActiveXObject('Microsoft.XMLHTTP')}
) || false;},activeRequestCount: 0}
Ajax.Responders = {responders: [],_each: function(iterator) {this.responders._each(iterator);},register: function(responder) {if (!this.include(responder))
this.responders.push(responder);},unregister: function(responder) {this.responders = this.responders.without(responder);},dispatch: function(callback, request, transport, json) {this.each(function(responder) {if (typeof responder[callback] == 'function') {try {responder[callback].apply(responder, [request, transport, json]);} catch (e) {}}});}};Object.extend(Ajax.Responders, Enumerable);Ajax.Responders.register({onCreate: function() {Ajax.activeRequestCount++;},onComplete: function() {Ajax.activeRequestCount--;}});Ajax.Base = function() {};Ajax.Base.prototype = {setOptions: function(options) {this.options = {method:       'post',asynchronous: true,contentType:  'application/x-www-form-urlencoded',encoding:     'UTF-8',parameters:   ''}
Object.extend(this.options, options || {});this.options.method = this.options.method.toLowerCase();if (typeof this.options.parameters == 'string')
this.options.parameters = this.options.parameters.toQueryParams();}}
Ajax.Request = Class.create();Ajax.Request.Events =
['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];Ajax.Request.prototype = Object.extend(new Ajax.Base(), {_complete: false,initialize: function(url, options) {this.transport = Ajax.getTransport();this.setOptions(options);this.request(url);},request: function(url) {this.url = url;this.method = this.options.method;var params = this.options.parameters;if (!['get', 'post'].include(this.method)) {params['_method'] = this.method;this.method = 'post';}
params = Hash.toQueryString(params);if (params && /Konqueror|Safari|KHTML/.test(navigator.userAgent)) params += '&_='
if (this.method == 'get' && params)
this.url += (this.url.indexOf('?') > -1 ? '&' : '?') + params;try {Ajax.Responders.dispatch('onCreate', this, this.transport);this.transport.open(this.method.toUpperCase(), this.url,this.options.asynchronous);if (this.options.asynchronous)
setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);this.transport.onreadystatechange = this.onStateChange.bind(this);this.setRequestHeaders();var body = this.method == 'post' ? (this.options.postBody || params) : null;this.transport.send(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 : '');if (this.transport.overrideMimeType &&
(navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
headers['Connection'] = 'close';}
if (typeof this.options.requestHeaders == 'object') {var extras = this.options.requestHeaders;if (typeof extras.push == 'function')
for (var i = 0, length = extras.length; i < length; i += 2)
headers[extras[i]] = extras[i+1];else
$H(extras).each(function(pair) { headers[pair.key] = pair.value });}
for (var name in headers)
this.transport.setRequestHeader(name, headers[name]);},success: function() {return !this.transport.status
|| (this.transport.status >= 200 && this.transport.status < 300);},respondToReadyState: function(readyState) {var state = Ajax.Request.Events[readyState];var transport = this.transport, json = this.evalJSON();if (state == 'Complete') {try {this._complete = true;(this.options['on' + this.transport.status]
|| this.options['on' + (this.success() ? 'Success' : 'Failure')]
|| Prototype.emptyFunction)(transport, json);} catch (e) {this.dispatchException(e);}
if ((this.getHeader('Content-type') || 'text/javascript').strip().
match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))
this.evalResponse();}
try {(this.options['on' + state] || Prototype.emptyFunction)(transport, json);Ajax.Responders.dispatch('on' + state, this, transport, json);} catch (e) {this.dispatchException(e);}
if (state == 'Complete') {this.transport.onreadystatechange = Prototype.emptyFunction;}},getHeader: function(name) {try {return this.transport.getResponseHeader(name);} catch (e) { return null }},evalJSON: function() {try {var json = this.getHeader('X-JSON');return json ? eval('(' + json + ')') : null;} catch (e) { return null }},evalResponse: function() {try {return eval(this.transport.responseText);} catch (e) {this.dispatchException(e);}},dispatchException: function(exception) {(this.options.onException || Prototype.emptyFunction)(this, exception);Ajax.Responders.dispatch('onException', this, exception);}});Ajax.Updater = Class.create();Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {initialize: function(container, url, options) {this.container = {success: (container.success || container),failure: (container.failure || (container.success ? null : container))}
this.transport = Ajax.getTransport();this.setOptions(options);var onComplete = this.options.onComplete || Prototype.emptyFunction;this.options.onComplete = (function(transport, param) {this.updateContent();onComplete(transport, param);}).bind(this);this.request(url);},updateContent: function() {var receiver = this.container[this.success() ? 'success' : 'failure'];var response = this.transport.responseText;if (!this.options.evalScripts) response = response.stripScripts();if (receiver = $(receiver)) {if (this.options.insertion)
new this.options.insertion(receiver, response);else
receiver.update(response);}
if (this.success()) {if (this.onComplete)
setTimeout(this.onComplete.bind(this), 10);}}});Ajax.PeriodicalUpdater = Class.create();Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {initialize: function(container, url, options) {this.setOptions(options);this.onComplete = this.options.onComplete;this.frequency = (this.options.frequency || 2);this.decay = (this.options.decay || 1);this.updater = {};this.container = container;this.url = url;this.start();},start: function() {this.options.onComplete = this.updateComplete.bind(this);this.onTimerEvent();},stop: function() {this.updater.options.onComplete = undefined;clearTimeout(this.timer);(this.onComplete || Prototype.emptyFunction).apply(this, arguments);},updateComplete: function(request) {if (this.options.decay) {this.decay = (request.responseText == this.lastText ?
this.decay * this.options.decay : 1);this.lastText = request.responseText;}
this.timer = setTimeout(this.onTimerEvent.bind(this),this.decay * this.frequency * 1000);},onTimerEvent: function() {this.updater = new Ajax.Updater(this.container, this.url, this.options);}});function $(element) {if (arguments.length > 1) {for (var i = 0, elements = [], length = arguments.length; i < length; i++)
elements.push($(arguments[i]));return elements;}
if (typeof element == 'string')
element = document.getElementById(element);return Element.extend(element);}
if (Prototype.BrowserFeatures.XPath) {document._getElementsByXPath = function(expression, parentElement) {var results = [];var query = document.evaluate(expression, $(parentElement) || document,null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);for (var i = 0, length = query.snapshotLength; i < length; i++)
results.push(query.snapshotItem(i));return results;};}
document.getElementsByClassName = function(className, parentElement) {if (Prototype.BrowserFeatures.XPath) {var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";return document._getElementsByXPath(q, parentElement);} else {var children = ($(parentElement) || document.body).getElementsByTagName('*');var elements = [], child;for (var i = 0, length = children.length; i < length; i++) {child = children[i];if (Element.hasClassName(child, className))
elements.push(Element.extend(child));}
return elements;}};if (!window.Element)
var Element = new Object();Element.extend = function(element) {if (!element || _nativeExtensions || element.nodeType == 3) return element;if (!element._extended && element.tagName && element != window) {var methods = Object.clone(Element.Methods), cache = Element.extend.cache;if (element.tagName == 'FORM')
Object.extend(methods, Form.Methods);if (['INPUT', 'TEXTAREA', 'SELECT'].include(element.tagName))
Object.extend(methods, Form.Element.Methods);Object.extend(methods, Element.Methods.Simulated);for (var property in methods) {var value = methods[property];if (typeof value == 'function' && !(property in element))
element[property] = cache.findOrStore(value);}}
element._extended = true;return element;};Element.extend.cache = {findOrStore: function(value) {return this[value] = this[value] || function() {return value.apply(null, [this].concat($A(arguments)));}}};Element.Methods = {visible: function(element) {return $(element).style.display != 'none';},toggle: function(element) {element = $(element);Element[Element.visible(element) ? 'hide' : 'show'](element);return element;},hide: function(element) {$(element).style.display = 'none';return element;},show: function(element) {$(element).style.display = '';return element;},remove: function(element) {element = $(element);element.parentNode.removeChild(element);return element;},update: function(element, html) {html = typeof html == 'undefined' ? '' : html.toString();$(element).innerHTML = html.stripScripts();setTimeout(function() {html.evalScripts()}, 10);return element;},replace: function(element, html) {element = $(element);html = typeof html == 'undefined' ? '' : html.toString();if (element.outerHTML) {element.outerHTML = html.stripScripts();} else {var range = element.ownerDocument.createRange();range.selectNodeContents(element);element.parentNode.replaceChild(
range.createContextualFragment(html.stripScripts()), element);}
setTimeout(function() {html.evalScripts()}, 10);return element;},inspect: function(element) {element = $(element);var result = '<' + element.tagName.toLowerCase();$H({'id': 'id', 'className': 'class'}).each(function(pair) {var property = pair.first(), attribute = pair.last();var value = (element[property] || '').toString();if (value) result += ' ' + attribute + '=' + value.inspect(true);});return result + '>';},recursivelyCollect: function(element, property) {element = $(element);var elements = [];while (element = element[property])
if (element.nodeType == 1)
elements.push(Element.extend(element));return elements;},ancestors: function(element) {return $(element).recursivelyCollect('parentNode');},descendants: function(element) {return $A($(element).getElementsByTagName('*'));},immediateDescendants: function(element) {if (!(element = $(element).firstChild)) return [];while (element && element.nodeType != 1) element = element.nextSibling;if (element) return [element].concat($(element).nextSiblings());return [];},previousSiblings: function(element) {return $(element).recursivelyCollect('previousSibling');},nextSiblings: function(element) {return $(element).recursivelyCollect('nextSibling');},siblings: function(element) {element = $(element);return element.previousSiblings().reverse().concat(element.nextSiblings());},match: function(element, selector) {if (typeof selector == 'string')
selector = new Selector(selector);return selector.match($(element));},up: function(element, expression, index) {return Selector.findElement($(element).ancestors(), expression, index);},down: function(element, expression, index) {return Selector.findElement($(element).descendants(), expression, index);},previous: function(element, expression, index) {return Selector.findElement($(element).previousSiblings(), expression, index);},next: function(element, expression, index) {return Selector.findElement($(element).nextSiblings(), expression, index);},getElementsBySelector: function() {var args = $A(arguments), element = $(args.shift());return Selector.findChildElements(element, args);},getElementsByClassName: function(element, className) {return document.getElementsByClassName(className, element);},readAttribute: function(element, name) {element = $(element);if (document.all && !window.opera) {var t = Element._attributeTranslations;if (t.values[name]) return t.values[name](element, name);if (t.names[name])  name = t.names[name];var attribute = element.attributes[name];if(attribute) return attribute.nodeValue;}
return element.getAttribute(name);},getHeight: function(element) {return $(element).getDimensions().height;},getWidth: function(element) {return $(element).getDimensions().width;},classNames: function(element) {return new Element.ClassNames(element);},hasClassName: function(element, className) {if (!(element = $(element))) return;var elementClassName = element.className;if (elementClassName.length == 0) return false;if (elementClassName == className ||
elementClassName.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
return true;return false;},addClassName: function(element, className) {if (!(element = $(element))) return;Element.classNames(element).add(className);return element;},removeClassName: function(element, className) {if (!(element = $(element))) return;Element.classNames(element).remove(className);return element;},toggleClassName: function(element, className) {if (!(element = $(element))) return;Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className);return element;},observe: function() {Event.observe.apply(Event, arguments);return $A(arguments).first();},stopObserving: function() {Event.stopObserving.apply(Event, arguments);return $A(arguments).first();},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 $(element).innerHTML.match(/^\s*$/);},descendantOf: function(element, ancestor) {element = $(element), ancestor = $(ancestor);while (element = element.parentNode)
if (element == ancestor) return true;return false;},scrollTo: function(element) {element = $(element);var pos = Position.cumulativeOffset(element);window.scrollTo(pos[0], pos[1]);return element;},getStyle: function(element, style) {element = $(element);if (['float','cssFloat'].include(style))
style = (typeof element.style.styleFloat != 'undefined' ? 'styleFloat' : 'cssFloat');style = style.camelize();var value = element.style[style];if (!value) {if (document.defaultView && document.defaultView.getComputedStyle) {var css = document.defaultView.getComputedStyle(element, null);value = css ? css[style] : null;} else if (element.currentStyle) {value = element.currentStyle[style];}}
if((value == 'auto') && ['width','height'].include(style) && (element.getStyle('display') != 'none'))
value = element['offset'+style.capitalize()] + 'px';if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
if (Element.getStyle(element, 'position') == 'static') value = 'auto';if(style == 'opacity') {if(value) return parseFloat(value);if(value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
if(value[1]) return parseFloat(value[1]) / 100;return 1.0;}
return value == 'auto' ? null : value;},setStyle: function(element, style) {element = $(element);for (var name in style) {var value = style[name];if(name == 'opacity') {if (value == 1) {value = (/Gecko/.test(navigator.userAgent) &&
!/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 0.999999 : 1.0;if(/MSIE/.test(navigator.userAgent) && !window.opera)
element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'');} else if(value === '') {if(/MSIE/.test(navigator.userAgent) && !window.opera)
element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'');} else {if(value < 0.00001) value = 0;if(/MSIE/.test(navigator.userAgent) && !window.opera)
element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'') +
'alpha(opacity='+value*100+')';}} else if(['float','cssFloat'].include(name)) name = (typeof element.style.styleFloat != 'undefined') ? 'styleFloat' : 'cssFloat';element.style[name.camelize()] = value;}
return element;},getDimensions: function(element) {element = $(element);var display = $(element).getStyle('display');if (display != 'none' && display != null)
return {width: element.offsetWidth, height: element.offsetHeight};var els = element.style;var originalVisibility = els.visibility;var originalPosition = els.position;var originalDisplay = els.display;els.visibility = 'hidden';els.position = 'absolute';els.display = 'block';var originalWidth = element.clientWidth;var originalHeight = element.clientHeight;els.display = originalDisplay;els.position = originalPosition;els.visibility = originalVisibility;return {width: originalWidth, height: originalHeight};},makePositioned: function(element) {element = $(element);var pos = Element.getStyle(element, 'position');if (pos == 'static' || !pos) {element._madePositioned = true;element.style.position = 'relative';if (window.opera) {element.style.top = 0;element.style.left = 0;}}
return element;},undoPositioned: function(element) {element = $(element);if (element._madePositioned) {element._madePositioned = undefined;element.style.position =
element.style.top =
element.style.left =
element.style.bottom =
element.style.right = '';}
return element;},makeClipping: function(element) {element = $(element);if (element._overflow) return element;element._overflow = element.style.overflow || 'auto';if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')
element.style.overflow = 'hidden';return element;},undoClipping: function(element) {element = $(element);if (!element._overflow) return element;element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;element._overflow = null;return element;}};Object.extend(Element.Methods, {childOf: Element.Methods.descendantOf});Element._attributeTranslations = {};Element._attributeTranslations.names = {colspan:   "colSpan",rowspan:   "rowSpan",valign:    "vAlign",datetime:  "dateTime",accesskey: "accessKey",tabindex:  "tabIndex",enctype:   "encType",maxlength: "maxLength",readonly:  "readOnly",longdesc:  "longDesc"};Element._attributeTranslations.values = {_getAttr: function(element, attribute) {return element.getAttribute(attribute, 2);},_flag: function(element, attribute) {return $(element).hasAttribute(attribute) ? attribute : null;},style: function(element) {return element.style.cssText.toLowerCase();},title: function(element) {var node = element.getAttributeNode('title');return node.specified ? node.nodeValue : null;}};Object.extend(Element._attributeTranslations.values, {href: Element._attributeTranslations.values._getAttr,src:  Element._attributeTranslations.values._getAttr,disabled: Element._attributeTranslations.values._flag,checked:  Element._attributeTranslations.values._flag,readonly: Element._attributeTranslations.values._flag,multiple: Element._attributeTranslations.values._flag});Element.Methods.Simulated = {hasAttribute: function(element, attribute) {var t = Element._attributeTranslations;attribute = t.names[attribute] || attribute;return $(element).getAttributeNode(attribute).specified;}};if (document.all && !window.opera){Element.Methods.update = function(element, html) {element = $(element);html = typeof html == 'undefined' ? '' : html.toString();var tagName = element.tagName.toUpperCase();if (['THEAD','TBODY','TR','TD'].include(tagName)) {var div = document.createElement('div');switch (tagName) {case 'THEAD':
case 'TBODY':
div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';depth = 2;break;case 'TR':
div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';depth = 3;break;case 'TD':
div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';depth = 4;}
$A(element.childNodes).each(function(node){element.removeChild(node)});depth.times(function(){ div = div.firstChild });$A(div.childNodes).each(
function(node){ element.appendChild(node) });} else {element.innerHTML = html.stripScripts();}
setTimeout(function() {html.evalScripts()}, 10);return element;}};Object.extend(Element, Element.Methods);var _nativeExtensions = false;if(/Konqueror|Safari|KHTML/.test(navigator.userAgent))
['', 'Form', 'Input', 'TextArea', 'Select'].each(function(tag) {var className = 'HTML' + tag + 'Element';if(window[className]) return;var klass = window[className] = {};klass.prototype = document.createElement(tag ? tag.toLowerCase() : 'div').__proto__;});Element.addMethods = function(methods) {Object.extend(Element.Methods, methods || {});function copy(methods, destination, onlyIfAbsent) {onlyIfAbsent = onlyIfAbsent || false;var cache = Element.extend.cache;for (var property in methods) {var value = methods[property];if (!onlyIfAbsent || !(property in destination))
destination[property] = cache.findOrStore(value);}}
if (typeof HTMLElement != 'undefined') {copy(Element.Methods, HTMLElement.prototype);copy(Element.Methods.Simulated, HTMLElement.prototype, true);copy(Form.Methods, HTMLFormElement.prototype);[HTMLInputElement, HTMLTextAreaElement, HTMLSelectElement].each(function(klass) {copy(Form.Element.Methods, klass.prototype);});_nativeExtensions = true;}}
var Toggle = new Object();Toggle.display = Element.toggle;Abstract.Insertion = function(adjacency) {this.adjacency = adjacency;}
Abstract.Insertion.prototype = {initialize: function(element, content) {this.element = $(element);this.content = content.stripScripts();if (this.adjacency && this.element.insertAdjacentHTML) {try {this.element.insertAdjacentHTML(this.adjacency, this.content);} catch (e) {var tagName = this.element.tagName.toUpperCase();if (['TBODY', 'TR'].include(tagName)) {this.insertContent(this.contentFromAnonymousTable());} else {throw e;}}} else {this.range = this.element.ownerDocument.createRange();if (this.initializeRange) this.initializeRange();this.insertContent([this.range.createContextualFragment(this.content)]);}
setTimeout(function() {content.evalScripts()}, 10);},contentFromAnonymousTable: function() {var div = document.createElement('div');div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';return $A(div.childNodes[0].childNodes[0].childNodes);}}
var Insertion = new Object();Insertion.Before = Class.create();Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {initializeRange: function() {this.range.setStartBefore(this.element);},insertContent: function(fragments) {fragments.each((function(fragment) {this.element.parentNode.insertBefore(fragment, this.element);}).bind(this));}});Insertion.Top = Class.create();Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {initializeRange: function() {this.range.selectNodeContents(this.element);this.range.collapse(true);},insertContent: function(fragments) {fragments.reverse(false).each((function(fragment) {this.element.insertBefore(fragment, this.element.firstChild);}).bind(this));}});Insertion.Bottom = Class.create();Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {initializeRange: function() {this.range.selectNodeContents(this.element);this.range.collapse(this.element);},insertContent: function(fragments) {fragments.each((function(fragment) {this.element.appendChild(fragment);}).bind(this));}});Insertion.After = Class.create();Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {initializeRange: function() {this.range.setStartAfter(this.element);},insertContent: function(fragments) {fragments.each((function(fragment) {this.element.parentNode.insertBefore(fragment,this.element.nextSibling);}).bind(this));}});Element.ClassNames = Class.create();Element.ClassNames.prototype = {initialize: function(element) {this.element = $(element);},_each: function(iterator) {this.element.className.split(/\s+/).select(function(name) {return name.length > 0;})._each(iterator);},set: function(className) {this.element.className = className;},add: function(classNameToAdd) {if (this.include(classNameToAdd)) return;this.set($A(this).concat(classNameToAdd).join(' '));},remove: function(classNameToRemove) {if (!this.include(classNameToRemove)) return;this.set($A(this).without(classNameToRemove).join(' '));},toString: function() {return $A(this).join(' ');}};Object.extend(Element.ClassNames.prototype, Enumerable);var Selector = Class.create();Selector.prototype = {initialize: function(expression) {this.params = {classNames: []};this.expression = expression.toString().strip();this.parseExpression();this.compileMatcher();},parseExpression: function() {function abort(message) { throw 'Parse error in selector: ' + message; }
if (this.expression == '')  abort('empty expression');var params = this.params, expr = this.expression, match, modifier, clause, rest;while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) {params.attributes = params.attributes || [];params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''});expr = match[1];}
if (expr == '*') return this.params.wildcard = true;while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)) {modifier = match[1], clause = match[2], rest = match[3];switch (modifier) {case '#':       params.id = clause; break;case '.':       params.classNames.push(clause); break;case '':
case undefined: params.tagName = clause.toUpperCase(); break;default:        abort(expr.inspect());}
expr = rest;}
if (expr.length > 0) abort(expr.inspect());},buildMatchExpression: function() {var params = this.params, conditions = [], clause;if (params.wildcard)
conditions.push('true');if (clause = params.id)
conditions.push('element.readAttribute("id") == ' + clause.inspect());if (clause = params.tagName)
conditions.push('element.tagName.toUpperCase() == ' + clause.inspect());if ((clause = params.classNames).length > 0)
for (var i = 0, length = clause.length; i < length; i++)
conditions.push('element.hasClassName(' + clause[i].inspect() + ')');if (clause = params.attributes) {clause.each(function(attribute) {var value = 'element.readAttribute(' + attribute.name.inspect() + ')';var splitValueBy = function(delimiter) {return value + ' && ' + value + '.split(' + delimiter.inspect() + ')';}
switch (attribute.operator) {case '=':       conditions.push(value + ' == ' + attribute.value.inspect()); break;case '~=':      conditions.push(splitValueBy(' ') + '.include(' + attribute.value.inspect() + ')'); break;case '|=':      conditions.push(
splitValueBy('-') + '.first().toUpperCase() == ' + attribute.value.toUpperCase().inspect()
); break;case '!=':      conditions.push(value + ' != ' + attribute.value.inspect()); break;case '':
case undefined: conditions.push('element.hasAttribute(' + attribute.name.inspect() + ')'); break;default:        throw 'Unknown operator ' + attribute.operator + ' in selector';}});}
return conditions.join(' && ');},compileMatcher: function() {this.match = new Function('element', 'if (!element.tagName) return false; \
element = $(element); \
return ' + this.buildMatchExpression());},findElements: function(scope) {var element;if (element = $(this.params.id))
if (this.match(element))
if (!scope || Element.childOf(element, scope))
return [element];scope = (scope || document).getElementsByTagName(this.params.tagName || '*');var results = [];for (var i = 0, length = scope.length; i < length; i++)
if (this.match(element = scope[i]))
results.push(Element.extend(element));return results;},toString: function() {return this.expression;}}
Object.extend(Selector, {matchElements: function(elements, expression) {var selector = new Selector(expression);return elements.select(selector.match.bind(selector)).map(Element.extend);},findElement: function(elements, expression, index) {if (typeof expression == 'number') index = expression, expression = false;return Selector.matchElements(elements, expression || '*')[index || 0];},findChildElements: function(element, expressions) {return expressions.map(function(expression) {return expression.match(/[^\s"]+(?:"[^"]*"[^\s"]+)*/g).inject([null], function(results, expr) {var selector = new Selector(expr);return results.inject([], function(elements, result) {return elements.concat(selector.findElements(result || element));});});}).flatten();}});function $$() {return Selector.findChildElements(document, $A(arguments));}
var Form = {reset: function(form) {$(form).reset();return form;},serializeElements: function(elements, getHash) {var data = elements.inject({}, function(result, element) {if (!element.disabled && element.name) {var key = element.name, value = $(element).getValue();if (value != undefined) {if (result[key]) {if (result[key].constructor != Array) result[key] = [result[key]];result[key].push(value);}
else result[key] = value;}}
return result;});return getHash ? data : Hash.toQueryString(data);}};Form.Methods = {serialize: function(form, getHash) {return Form.serializeElements(Form.getElements(form), getHash);},getElements: function(form) {return $A($(form).getElementsByTagName('*')).inject([],function(elements, child) {if (Form.Element.Serializers[child.tagName.toLowerCase()])
elements.push(Element.extend(child));return elements;}
);},getInputs: function(form, typeName, name) {form = $(form);var inputs = form.getElementsByTagName('input');if (!typeName && !name) return $A(inputs).map(Element.extend);for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {var input = inputs[i];if ((typeName && input.type != typeName) || (name && input.name != name))
continue;matchingInputs.push(Element.extend(input));}
return matchingInputs;},disable: function(form) {form = $(form);form.getElements().each(function(element) {element.blur();element.disabled = 'true';});return form;},enable: function(form) {form = $(form);form.getElements().each(function(element) {element.disabled = '';});return form;},findFirstElement: function(form) {return $(form).getElements().find(function(element) {return element.type != 'hidden' && !element.disabled &&
['input', 'select', 'textarea'].include(element.tagName.toLowerCase());});},focusFirstElement: function(form) {form = $(form);form.findFirstElement().activate();return form;}}
Object.extend(Form, Form.Methods);Form.Element = {focus: function(element) {$(element).focus();return element;},select: function(element) {$(element).select();return element;}}
Form.Element.Methods = {serialize: function(element) {element = $(element);if (!element.disabled && element.name) {var value = element.getValue();if (value != undefined) {var pair = {};pair[element.name] = value;return Hash.toQueryString(pair);}}
return '';},getValue: function(element) {element = $(element);var method = element.tagName.toLowerCase();return Form.Element.Serializers[method](element);},clear: function(element) {$(element).value = '';return element;},present: function(element) {return $(element).value != '';},activate: function(element) {element = $(element);element.focus();if (element.select && ( element.tagName.toLowerCase() != 'input' ||
!['button', 'reset', 'submit'].include(element.type) ) )
element.select();return element;},disable: function(element) {element = $(element);element.disabled = true;return element;},enable: function(element) {element = $(element);element.blur();element.disabled = false;return element;}}
Object.extend(Form.Element, Form.Element.Methods);var Field = Form.Element;var $F = Form.Element.getValue;Form.Element.Serializers = {input: function(element) {switch (element.type.toLowerCase()) {case 'checkbox':
case 'radio':
return Form.Element.Serializers.inputSelector(element);default:
return Form.Element.Serializers.textarea(element);}},inputSelector: function(element) {return element.checked ? element.value : null;},textarea: function(element) {return element.value;},select: function(element) {return this[element.type == 'select-one' ?
'selectOne' : 'selectMany'](element);},selectOne: function(element) {var index = element.selectedIndex;return index >= 0 ? this.optionValue(element.options[index]) : null;},selectMany: function(element) {var values, length = element.length;if (!length) return null;for (var i = 0, values = []; i < length; i++) {var opt = element.options[i];if (opt.selected) values.push(this.optionValue(opt));}
return values;},optionValue: function(opt) {return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;}}
Abstract.TimedObserver = function() {}
Abstract.TimedObserver.prototype = {initialize: function(element, frequency, callback) {this.frequency = frequency;this.element   = $(element);this.callback  = callback;this.lastValue = this.getValue();this.registerCallback();},registerCallback: function() {setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);},onTimerEvent: function() {var value = this.getValue();var changed = ('string' == typeof this.lastValue && 'string' == typeof value
? this.lastValue != value : String(this.lastValue) != String(value));if (changed) {this.callback(this.element, value);this.lastValue = value;}}}
Form.Element.Observer = Class.create();Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {getValue: function() {return Form.Element.getValue(this.element);}});Form.Observer = Class.create();Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {getValue: function() {return Form.serialize(this.element);}});Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {initialize: function(element, callback) {this.element  = $(element);this.callback = callback;this.lastValue = this.getValue();if (this.element.tagName.toLowerCase() == 'form')
this.registerFormCallbacks();else
this.registerCallback(this.element);},onElementEvent: function() {var value = this.getValue();if (this.lastValue != value) {this.callback(this.element, value);this.lastValue = value;}},registerFormCallbacks: function() {Form.getElements(this.element).each(this.registerCallback.bind(this));},registerCallback: function(element) {if (element.type) {switch (element.type.toLowerCase()) {case 'checkbox':
case 'radio':
Event.observe(element, 'click', this.onElementEvent.bind(this));break;default:
Event.observe(element, 'change', this.onElementEvent.bind(this));break;}}}}
Form.Element.EventObserver = Class.create();Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {getValue: function() {return Form.Element.getValue(this.element);}});Form.EventObserver = Class.create();Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {getValue: function() {return Form.serialize(this.element);}});if (!window.Event) {var Event = new Object();}
Object.extend(Event, {KEY_BACKSPACE: 8,KEY_TAB:       9,KEY_RETURN:   13,KEY_ESC:      27,KEY_LEFT:     37,KEY_UP:       38,KEY_RIGHT:    39,KEY_DOWN:     40,KEY_DELETE:   46,KEY_HOME:     36,KEY_END:      35,KEY_PAGEUP:   33,KEY_PAGEDOWN: 34,element: function(event) {return event.target || event.srcElement;},isLeftClick: function(event) {return (((event.which) && (event.which == 1)) ||
((event.button) && (event.button == 1)));},pointerX: function(event) {return event.pageX || (event.clientX +
(document.documentElement.scrollLeft || document.body.scrollLeft));},pointerY: function(event) {return event.pageY || (event.clientY +
(document.documentElement.scrollTop || document.body.scrollTop));},stop: function(event) {if (event.preventDefault) {event.preventDefault();event.stopPropagation();} else {event.returnValue = false;event.cancelBubble = true;}},findElement: function(event, tagName) {var element = Event.element(event);while (element.parentNode && (!element.tagName ||
(element.tagName.toUpperCase() != tagName.toUpperCase())))
element = element.parentNode;return element;},observers: false,_observeAndCache: function(element, name, observer, useCapture) {if (!this.observers) this.observers = [];if (element.addEventListener) {this.observers.push([element, name, observer, useCapture]);element.addEventListener(name, observer, useCapture);} else if (element.attachEvent) {this.observers.push([element, name, observer, useCapture]);element.attachEvent('on' + name, observer);}},unloadCache: function() {if (!Event.observers) return;for (var i = 0, length = Event.observers.length; i < length; i++) {Event.stopObserving.apply(this, Event.observers[i]);Event.observers[i][0] = null;}
Event.observers = false;},observe: function(element, name, observer, useCapture) {element = $(element);useCapture = useCapture || false;if (name == 'keypress' &&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/)
|| element.attachEvent))
name = 'keydown';Event._observeAndCache(element, name, observer, useCapture);},stopObserving: function(element, name, observer, useCapture) {element = $(element);useCapture = useCapture || false;if (name == 'keypress' &&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/)
|| element.detachEvent))
name = 'keydown';if (element.removeEventListener) {element.removeEventListener(name, observer, useCapture);} else if (element.detachEvent) {try {element.detachEvent('on' + name, observer);} catch (e) {}}}});if (navigator.appVersion.match(/\bMSIE\b/))
Event.observe(window, 'unload', Event.unloadCache, false);var Position = {includeScrollOffsets: false,prepare: function() {this.deltaX =  window.pageXOffset
|| document.documentElement.scrollLeft
|| document.body.scrollLeft
|| 0;this.deltaY =  window.pageYOffset
|| document.documentElement.scrollTop
|| document.body.scrollTop
|| 0;},realOffset: function(element) {var valueT = 0, valueL = 0;do {valueT += element.scrollTop  || 0;valueL += element.scrollLeft || 0;element = element.parentNode;} while (element);return [valueL, valueT];},cumulativeOffset: function(element) {var valueT = 0, valueL = 0;do {valueT += element.offsetTop  || 0;valueL += element.offsetLeft || 0;element = element.offsetParent;} while (element);return [valueL, valueT];},positionedOffset: function(element) {var valueT = 0, valueL = 0;do {valueT += element.offsetTop  || 0;valueL += element.offsetLeft || 0;element = element.offsetParent;if (element) {if(element.tagName=='BODY') break;var p = Element.getStyle(element, 'position');if (p == 'relative' || p == 'absolute') break;}} while (element);return [valueL, valueT];},offsetParent: function(element) {if (element.offsetParent) return element.offsetParent;if (element == document.body) return element;while ((element = element.parentNode) && element != document.body)
if (Element.getStyle(element, 'position') != 'static')
return element;return document.body;},within: function(element, x, y) {if (this.includeScrollOffsets)
return this.withinIncludingScrolloffsets(element, x, y);this.xcomp = x;this.ycomp = y;this.offset = this.cumulativeOffset(element);return (y >= this.offset[1] &&
y <  this.offset[1] + element.offsetHeight &&
x >= this.offset[0] &&
x <  this.offset[0] + element.offsetWidth);},withinIncludingScrolloffsets: function(element, x, y) {var offsetcache = this.realOffset(element);this.xcomp = x + offsetcache[0] - this.deltaX;this.ycomp = y + offsetcache[1] - this.deltaY;this.offset = this.cumulativeOffset(element);return (this.ycomp >= this.offset[1] &&
this.ycomp <  this.offset[1] + element.offsetHeight &&
this.xcomp >= this.offset[0] &&
this.xcomp <  this.offset[0] + element.offsetWidth);},overlap: function(mode, element) {if (!mode) return 0;if (mode == 'vertical')
return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
element.offsetHeight;if (mode == 'horizontal')
return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
element.offsetWidth;},page: function(forElement) {var valueT = 0, valueL = 0;var element = forElement;do {valueT += element.offsetTop  || 0;valueL += element.offsetLeft || 0;if (element.offsetParent==document.body)
if (Element.getStyle(element,'position')=='absolute') break;} while (element = element.offsetParent);element = forElement;do {if (!window.opera || element.tagName=='BODY') {valueT -= element.scrollTop  || 0;valueL -= element.scrollLeft || 0;}} while (element = element.parentNode);return [valueL, valueT];},clone: function(source, target) {var options = Object.extend({setLeft:    true,setTop:     true,setWidth:   true,setHeight:  true,offsetTop:  0,offsetLeft: 0}, arguments[2] || {})
source = $(source);var p = Position.page(source);target = $(target);var delta = [0, 0];var parent = null;if (Element.getStyle(target,'position') == 'absolute') {parent = Position.offsetParent(target);delta = Position.page(parent);}
if (parent == document.body) {delta[0] -= document.body.offsetLeft;delta[1] -= document.body.offsetTop;}
if(options.setLeft)   target.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';if(options.setTop)    target.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';if(options.setWidth)  target.style.width = source.offsetWidth + 'px';if(options.setHeight) target.style.height = source.offsetHeight + 'px';},absolutize: function(element) {element = $(element);if (element.style.position == 'absolute') return;Position.prepare();var offsets = Position.positionedOffset(element);var top     = offsets[1];var left    = offsets[0];var width   = element.clientWidth;var height  = element.clientHeight;element._originalLeft   = left - parseFloat(element.style.left  || 0);element._originalTop    = top  - parseFloat(element.style.top || 0);element._originalWidth  = element.style.width;element._originalHeight = element.style.height;element.style.position = 'absolute';element.style.top    = top + 'px';element.style.left   = left + 'px';element.style.width  = width + 'px';element.style.height = height + 'px';},relativize: function(element) {element = $(element);if (element.style.position == 'relative') return;Position.prepare();element.style.position = 'relative';var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);element.style.top    = top + 'px';element.style.left   = left + 'px';element.style.height = element._originalHeight;element.style.width  = element._originalWidth;}}
if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {Position.cumulativeOffset = function(element) {var valueT = 0, valueL = 0;do {valueT += element.offsetTop  || 0;valueL += element.offsetLeft || 0;if (element.offsetParent == document.body)
if (Element.getStyle(element, 'position') == 'absolute') break;element = element.offsetParent;} while (element);return [valueL, valueT];}}
Element.addMethods();