/*  Prototype JavaScript framework, version 1.5.0
 *  (c) 2005-2007 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

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); 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; } 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; 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 (/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();