var Prototype = {Version: '1.4.0',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 (property in source) {destination[property] = source[property];}return destination;};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;}};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;return function(event) {return __method.call(object, event || window.event);}};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; i < arguments.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() {setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);},onTimerEvent: function() {if (!this.currentlyExecuting) {try {this.currentlyExecuting = true;this.callback();} finally {this.currentlyExecuting = false;}}}};function $() {var elements = new Array();for (var i = 0; i < arguments.length; i++) {var element = arguments[i];if (typeof element == 'string')element = document.getElementById(element);if (arguments.length == 1)return element;elements.push(element);}return elements;}Object.extend(String.prototype, {stripTags: function() {return this.replace(/<\/?[^>]+>/gi, '');},stripScripts: function() {return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');},extractScripts: function() {var matchAll = new RegExp(Prototype.ScriptFragment, 'img');var matchOne = new RegExp(Prototype.ScriptFragment, 'im');return (this.match(matchAll) || []).map(function(scriptTag) {return (scriptTag.match(matchOne) || ['', ''])[1];});},evalScripts: function() {return this.extractScripts().map(eval);},escapeHTML: function() {var div = document.createElement('div');var text = document.createTextNode(this);div.appendChild(text);return div.innerHTML;},unescapeHTML: function() {var div = document.createElement('div');div.innerHTML = this.stripTags();return div.childNodes[0] ? div.childNodes[0].nodeValue : '';},toQueryParams: function() {var pairs = this.match(/^\??(.*)$/)[1].split('&');return pairs.inject({}, function(params, pairString) {var pair = pairString.split('=');params[pair[0]] = pair[1];return params;});},toArray: function() {return this.split('');},camelize: function() {var oStringList = this.split('-');if (oStringList.length == 1) return oStringList[0];var camelizedString = this.indexOf('-') == 0? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1): oStringList[0];for (var i = 1, len = oStringList.length; i < len; i++) {var s = oStringList[i];camelizedString += s.charAt(0).toUpperCase() + s.substring(1);}return camelizedString;},inspect: function() {return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";}});String.prototype.parseQuery = String.prototype.toQueryParams;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;}},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 = true;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(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;},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.collect(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 (value>= (result || value))result = value;});return result;},min: function(iterator) {var result;this.each(function(value, index) {value = (iterator || Prototype.K)(value, index);if (value <= (result || value))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.collect(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.collect(Prototype.K);},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) {iterator(value = collections.pluck(index));return value;});},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; i < iterable.length; i++)results.push(iterable[i]);return results;}};Object.extend(Array.prototype, Enumerable);Array.prototype._reverse = Array.prototype.reverse;Object.extend(Array.prototype, {_each: function(iterator) {for (var i = 0; i < this.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 != undefined || value != null;});},flatten: function() {return this.inject([], function(array, value) {return array.concat(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; i < this.length; i++)if (this[i] == object) return i;return -1;},reverse: function(inline) {return (inline !== false ? this : this.toArray())._reverse();},shift: function() {var result = this[0];for (var i = 0; i < this.length - 1; i++)this[i] = this[i + 1];this.length--;return result;},inspect: function() {return '[' + this.map(Object.inspect).join(', ') + ']';}});var Hash = {_each: function(iterator) {for (key in this) {var value = this[key];if (typeof value == 'function') 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 $H(hash).inject($H(this), function(mergedHash, pair) {mergedHash[pair.key] = pair.value;return mergedHash;});},toQueryString: function() {return this.map(function(pair) {return pair.map(encodeURIComponent).join('=');}).join('&');},inspect: function() {return '#<Hash:{' + this.map(function(pair) {return pair.map(Object.inspect).join(': ');}).join(', ') + '}>';}};function $H(object) {var hash = Object.extend({}, object || {});Object.extend(hash, Enumerable);Object.extend(hash, Hash);return hash;};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;do {iterator(value);value = value.succ();} while (this.include(value));},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 ActiveXObject('Msxml2.XMLHTTP')},function() {return new ActiveXObject('Microsoft.XMLHTTP')},function() {return new XMLHttpRequest()}) || false;},activeRequestCount: 0};Ajax.Responders = {responders: [],_each: function(iterator) {this.responders._each(iterator);},register: function(responderToAdd) {if (!this.include(responderToAdd))this.responders.push(responderToAdd);},unregister: function(responderToRemove) {this.responders = this.responders.without(responderToRemove);},dispatch: function(callback, request, transport, json) {this.each(function(responder) {if (responder[callback] && 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,parameters: ''};Object.extend(this.options, options || {});},responseIsSuccess: function() {return this.transport.status == undefined|| this.transport.status == 0|| (this.transport.status>= 200 && this.transport.status < 300);},responseIsFailure: function() {return !this.responseIsSuccess();}};Ajax.Request = Class.create();Ajax.Request.Events =['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];Ajax.Request.prototype = Object.extend(new Ajax.Base(), {initialize: function(url, options) {this.transport = Ajax.getTransport();this.setOptions(options);this.request(url);},request: function(url) {var parameters = this.options.parameters || '';if (parameters.length> 0) parameters += '&_=';try {this.url = url;if (this.options.method == 'get' && parameters.length > 0)this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;Ajax.Responders.dispatch('onCreate', this, this.transport);this.transport.open(this.options.method, this.url,this.options.asynchronous);if (this.options.asynchronous) {this.transport.onreadystatechange = this.onStateChange.bind(this);setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);}this.setRequestHeaders();var body = this.options.postBody ? this.options.postBody : parameters;this.transport.send(this.options.method == 'post' ? body : null);} catch (e) {this.dispatchException(e);}},setRequestHeaders: function() {var requestHeaders =['X-Requested-With', 'XMLHttpRequest', 'X-Prototype-Version', Prototype.Version];if (this.options.method == 'post') {requestHeaders.push('Content-type','application/x-www-form-urlencoded');if (this.transport.overrideMimeType)requestHeaders.push('Connection', 'close');}if (this.options.requestHeaders)requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);for (var i = 0; i < requestHeaders.length; i += 2)this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);},onStateChange: function() {var readyState = this.transport.readyState;if (readyState != 1)this.respondToReadyState(this.transport.readyState);},header: function(name) {try {return this.transport.getResponseHeader(name);} catch (e) {}},evalJSON: function() {try {return eval(this.header('X-JSON'));} catch (e) {}},evalResponse: function() {try {return eval(this.transport.responseText);} catch (e) {this.dispatchException(e);}},respondToReadyState: function(readyState) {var event = Ajax.Request.Events[readyState];var transport = this.transport, json = this.evalJSON();if (event == 'Complete') {try {(this.options['on' + this.transport.status] || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')] || Prototype.emptyFunction)(transport, json);} catch (e) {this.dispatchException(e);}if ((this.header('Content-type') || '').match(/^text\/javascript/i))this.evalResponse();}try {(this.options['on' + event] || Prototype.emptyFunction)(transport, json);Ajax.Responders.dispatch('on' + event, this, transport, json);} catch (e) {this.dispatchException(e);}if (event == 'Complete')this.transport.onreadystatechange = Prototype.emptyFunction;},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.containers = {success: container.success ? $(container.success) : $(container),failure: container.failure ? $(container.failure) :(container.success ? null : $(container))};this.transport = Ajax.getTransport();this.setOptions(options);var onComplete = this.options.onComplete || Prototype.emptyFunction;this.options.onComplete = (function(transport, object) {this.updateContent();onComplete(transport, object);}).bind(this);this.request(url);},updateContent: function() {var receiver = this.responseIsSuccess() ?this.containers.success : this.containers.failure;var response = this.transport.responseText;if (!this.options.evalScripts)response = response.stripScripts();if (receiver) {if (this.options.insertion) {new this.options.insertion(receiver, response);} else {Element.update(receiver, response);}}if (this.responseIsSuccess()) {if (this.onComplete)setTimeout(this.onComplete.bind(this), 10);}}});Ajax.PeriodicalUpdater = Class.create();Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {initialize: function(container, url, options) {this.setOptions(options);this.onComplete = this.options.onComplete;this.frequency = (this.options.frequency || 2);this.decay = (this.options.decay || 1);this.updater = {};this.container = container;this.url = url;this.start();},start: function() {this.options.onComplete = this.updateComplete.bind(this);this.onTimerEvent();},stop: function() {this.updater.onComplete = undefined;clearTimeout(this.timer);(this.onComplete || Prototype.emptyFunction).apply(this, arguments);},updateComplete: function(request) {if (this.options.decay) {this.decay = (request.responseText == this.lastText ?this.decay * this.options.decay : 1);this.lastText = request.responseText;}this.timer = setTimeout(this.onTimerEvent.bind(this),this.decay * this.frequency * 1000);},onTimerEvent: function() {this.updater = new Ajax.Updater(this.container, this.url, this.options);}});document.getElementsByClassName = function(className, parentElement) {var children = ($(parentElement) || document.body).getElementsByTagName('*');return $A(children).inject([], function(elements, child) {if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))elements.push(child);return elements;});};if (!window.Element) {var Element = new Object();}Object.extend(Element, {visible: function(element) {return $(element).style.display != 'none';},toggle: function() {for (var i = 0; i < arguments.length; i++) {var element = $(arguments[i]);Element[Element.visible(element) ? 'hide' : 'show'](element);}},hide: function() {for (var i = 0; i < arguments.length; i++) {var element = $(arguments[i]);element.style.display = 'none';}},show: function() {for (var i = 0; i < arguments.length; i++) {var element = $(arguments[i]);element.style.display = '';}},remove: function(element) {element = $(element);element.parentNode.removeChild(element);},update: function(element, html) {$(element).innerHTML = html.stripScripts();setTimeout(function() {html.evalScripts()}, 10);},getHeight: function(element) {element = $(element);return element.offsetHeight;},classNames: function(element) {return new Element.ClassNames(element);},hasClassName: function(element, className) {if (!(element = $(element))) return;return Element.classNames(element).include(className);},addClassName: function(element, className) {if (!(element = $(element))) return;return Element.classNames(element).add(className);},removeClassName: function(element, className) {if (!(element = $(element))) return;return Element.classNames(element).remove(className);},cleanWhitespace: function(element) {element = $(element);for (var i = 0; i < element.childNodes.length; i++) {var node = element.childNodes[i];if (node.nodeType == 3 && !/\S/.test(node.nodeValue))Element.remove(node);}},empty: function(element) {return $(element).innerHTML.match(/^\s*$/);},scrollTo: function(element) {element = $(element);var x = element.x ? element.x : element.offsetLeft,y = element.y ? element.y : element.offsetTop;window.scrollTo(x, y);},getStyle: function(element, style) {element = $(element);var value = element.style[style.camelize()];if (!value) {if (document.defaultView && document.defaultView.getComputedStyle) {var css = document.defaultView.getComputedStyle(element, null);value = css ? css.getPropertyValue(style) : null;} else if (element.currentStyle) {value = element.currentStyle[style.camelize()];}}if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))if (Element.getStyle(element, 'position') == 'static') value = 'auto';return value == 'auto' ? null : value;},setStyle: function(element, style) {element = $(element);for (name in style)element.style[name.camelize()] = style[name];},getDimensions: function(element) {element = $(element);if (Element.getStyle(element, 'display') != 'none')return {width: element.offsetWidth, height: element.offsetHeight};var els = element.style;var originalVisibility = els.visibility;var originalPosition = els.position;els.visibility = 'hidden';els.position = 'absolute';els.display = '';var originalWidth = element.clientWidth;var originalHeight = element.clientHeight;els.display = 'none';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;}}},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 = '';}},makeClipping: function(element) {element = $(element);if (element._overflow) return;element._overflow = element.style.overflow;if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')element.style.overflow = 'hidden';},undoClipping: function(element) {element = $(element);if (element._overflow) return;element.style.overflow = element._overflow;element._overflow = undefined;}});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) {if (this.element.tagName.toLowerCase() == 'tbody') {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 = $(element);},_each: function(iterator) {this.element.className.split(/\s+/).select(function(name) {return name.length > 0;})._each(iterator);},set: function(className) {this.element.className = className;},add: function(classNameToAdd) {if (this.include(classNameToAdd)) return;this.set(this.toArray().concat(classNameToAdd).join(' '));},remove: function(classNameToRemove) {if (!this.include(classNameToRemove)) return;this.set(this.select(function(className) {return className != classNameToRemove;}).join(' '));},toString: function() {return this.toArray().join(' ');}};Object.extend(Element.ClassNames.prototype, Enumerable);var Field = {clear: function() {for (var i = 0; i < arguments.length; i++)$(arguments[i]).value = '';},focus: function(element) {$(element).focus();},present: function() {for (var i = 0; i < arguments.length; i++)if ($(arguments[i]).value == '') return false;return true;},select: function(element) {$(element).select();},activate: function(element) {element = $(element);element.focus();if (element.select)element.select();}};var Form = {serialize: function(form) {var elements = Form.getElements($(form));var queryComponents = new Array();for (var i = 0; i < elements.length; i++) {var queryComponent = Form.Element.serialize(elements[i]);if (queryComponent)queryComponents.push(queryComponent);}return queryComponents.join('&');},getElements: function(form) {form = $(form);var elements = new Array();for (tagName in Form.Element.Serializers) {var tagElements = form.getElementsByTagName(tagName);for (var j = 0; j < tagElements.length; j++)elements.push(tagElements[j]);}return elements;},getInputs: function(form, typeName, name) {form = $(form);var inputs = form.getElementsByTagName('input');if (!typeName && !name)return inputs;var matchingInputs = new Array();for (var i = 0; i < inputs.length; i++) {var input = inputs[i];if ((typeName && input.type != typeName) ||(name && input.name != name))continue;matchingInputs.push(input);}return matchingInputs;},disable: function(form) {var elements = Form.getElements(form);for (var i = 0; i < elements.length; i++) {var element = elements[i];element.blur();element.disabled = 'true';}},enable: function(form) {var elements = Form.getElements(form);for (var i = 0; i < elements.length; i++) {var element = elements[i];element.disabled = '';}},findFirstElement: function(form) {return Form.getElements(form).find(function(element) {return element.type != 'hidden' && !element.disabled &&['input', 'select', 'textarea'].include(element.tagName.toLowerCase());});},focusFirstElement: function(form) {Field.activate(Form.findFirstElement(form));},reset: function(form) {$(form).reset();}};Form.Element = {serialize: function(element) {element = $(element);var method = element.tagName.toLowerCase();var parameter = Form.Element.Serializers[method](element);if (parameter) {var key = encodeURIComponent(parameter[0]);if (key.length == 0) return;if (parameter[1].constructor != Array)parameter[1] = [parameter[1]];return parameter[1].map(function(value) {return key + '=' + encodeURIComponent(value);}).join('&');}},getValue: function(element) {element = $(element);var method = element.tagName.toLowerCase();var parameter = Form.Element.Serializers[method](element);if (parameter)return parameter[1];}};Form.Element.Serializers = {input: function(element) {switch (element.type.toLowerCase()) {case 'submit':case 'hidden':case 'password':case 'text':return Form.Element.Serializers.textarea(element);case 'checkbox':case 'radio':return Form.Element.Serializers.inputSelector(element);}return false;},inputSelector: function(element) {if (element.checked)return [element.name, element.value];},textarea: function(element) {return [element.name, element.value];},select: function(element) {return Form.Element.Serializers[element.type == 'select-one' ?'selectOne' : 'selectMany'](element);},selectOne: function(element) {var value = '', opt, index = element.selectedIndex;if (index>= 0) {opt = element.options[index];value = opt.value;if (!value && !('value' in opt))value = opt.text;}return [element.name, value];},selectMany: function(element) {var value = new Array();for (var i = 0; i < element.length; i++) {var opt = element.options[i];if (opt.selected) {var optValue = opt.value;if (!optValue && !('value' in opt))optValue = opt.text;value.push(optValue);}}return [element.name, value];}};var $F = Form.Element.getValue;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();if (this.lastValue != value) {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();elsethis.registerCallback(this.element);},onElementEvent: function() {var value = this.getValue();if (this.lastValue != value) {this.callback(this.element, value);this.lastValue = value;}},registerFormCallbacks: function() {var elements = Form.getElements(this.element);for (var i = 0; i < elements.length; i++)this.registerCallback(elements[i]);},registerCallback: function(element) {if (element.type) {switch (element.type.toLowerCase()) {case 'checkbox':case 'radio':Event.observe(element, 'click', this.onElementEvent.bind(this));break;case 'password':case 'text':case 'textarea':case 'select-one':case 'select-multiple':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,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; i < Event.observers.length; i++) {Event.stopObserving.apply(this, Event.observers[i]);Event.observers[i][0] = null;}Event.observers = false;},observe: function(element, name, observer, useCapture) {var element = $(element);useCapture = useCapture || false;if (name == 'keypress' &&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)|| element.attachEvent))name = 'keydown';this._observeAndCache(element, name, observer, useCapture);},stopObserving: function(element, name, observer, useCapture) {var 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) {element.detachEvent('on' + name, observer);}}});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) {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;},clone: function(source, target) {source = $(source);target = $(target);target.style.position = 'absolute';var offsets = this.cumulativeOffset(source);target.style.top= offsets[1] + 'px';target.style.left = offsets[0] + 'px';target.style.width= source.offsetWidth + 'px';target.style.height = source.offsetHeight + 'px';},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 {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];}}