javascript comment /* Prototype JavaScript framework, version 1.4.0
javascript comment * (c) 2005 Sam Stephenson <sam@conio.net>
javascript comment *
javascript comment * Prototype is freely distributable under the terms of an MIT-style license.
javascript comment * For details, see the Prototype web site: http://prototype.conio.net/
javascript comment *
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code var Prototype = {
javascript code Version: '1.4.0',
javascript code ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
javascript blank
javascript code emptyFunction: function() {},
javascript code K: function(x) {return x}
javascript code }
javascript blank
javascript code var Class = {
javascript code create: function() {
javascript code return function() {
javascript code this.initialize.apply(this, arguments);
javascript code }
javascript code }
javascript code }
javascript blank
javascript code var Abstract = new Object();
javascript blank
javascript code Object.extend = function(destination, source) {
javascript code for (property in source) {
javascript code destination[property] = source[property];
javascript code }
javascript code return destination;
javascript code }
javascript blank
javascript code Object.inspect = function(object) {
javascript code try {
javascript code if (object == undefined) return 'undefined';
javascript code if (object == null) return 'null';
javascript code return object.inspect ? object.inspect() : object.toString();
javascript code } catch (e) {
javascript code if (e instanceof RangeError) return '...';
javascript code throw e;
javascript code }
javascript code }
javascript blank
javascript code Function.prototype.bind = function() {
javascript code var __method = this, args = $A(arguments), object = args.shift();
javascript code return function() {
javascript code return __method.apply(object, args.concat($A(arguments)));
javascript code }
javascript code }
javascript blank
javascript code Function.prototype.bindAsEventListener = function(object) {
javascript code var __method = this;
javascript code return function(event) {
javascript code return __method.call(object, event || window.event);
javascript code }
javascript code }
javascript blank
javascript code Object.extend(Number.prototype, {
javascript code toColorPart: function() {
javascript code var digits = this.toString(16);
javascript code if (this < 16) return '0' + digits;
javascript code return digits;
javascript code },
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javascript code succ: function() {
javascript code return this + 1;
javascript code },
javascript blank
javascript code times: function(iterator) {
javascript code $R(0, this, true).each(iterator);
javascript code return this;
javascript code }
javascript code });
javascript blank
javascript code var Try = {
javascript code these: function() {
javascript code var returnValue;
javascript blank
javascript code for (var i = 0; i < arguments.length; i++) {
javascript code var lambda = arguments[i];
javascript code try {
javascript code returnValue = lambda();
javascript code break;
javascript code } catch (e) {}
javascript code }
javascript blank
javascript code return returnValue;
javascript code }
javascript code }
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code var PeriodicalExecuter = Class.create();
javascript code PeriodicalExecuter.prototype = {
javascript code initialize: function(callback, frequency) {
javascript code this.callback = callback;
javascript code this.frequency = frequency;
javascript code this.currentlyExecuting = false;
javascript blank
javascript code this.registerCallback();
javascript code },
javascript blank
javascript code registerCallback: function() {
javascript code setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
javascript code },
javascript blank
javascript code onTimerEvent: function() {
javascript code if (!this.currentlyExecuting) {
javascript code try {
javascript code this.currentlyExecuting = true;
javascript code this.callback();
javascript code } finally {
javascript code this.currentlyExecuting = false;
javascript code }
javascript code }
javascript code }
javascript code }
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code function $() {
javascript code var elements = new Array();
javascript blank
javascript code for (var i = 0; i < arguments.length; i++) {
javascript code var element = arguments[i];
javascript code if (typeof element == 'string')
javascript code element = document.getElementById(element);
javascript blank
javascript code if (arguments.length == 1)
javascript code return element;
javascript blank
javascript code elements.push(element);
javascript code }
javascript blank
javascript code return elements;
javascript code }
javascript code Object.extend(String.prototype, {
javascript code stripTags: function() {
javascript code return this.replace(/<\/?[^>]+>/gi, '');
javascript code },
javascript blank
javascript code stripScripts: function() {
javascript code return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
javascript code },
javascript blank
javascript code extractScripts: function() {
javascript code var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
javascript code var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
javascript code return (this.match(matchAll) || []).map(function(scriptTag) {
javascript code return (scriptTag.match(matchOne) || ['', ''])[1];
javascript code });
javascript code },
javascript blank
javascript code evalScripts: function() {
javascript code return this.extractScripts().map(eval);
javascript code },
javascript blank
javascript code escapeHTML: function() {
javascript code var div = document.createElement('div');
javascript code var text = document.createTextNode(this);
javascript code div.appendChild(text);
javascript code return div.innerHTML;
javascript code },
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javascript code unescapeHTML: function() {
javascript code var div = document.createElement('div');
javascript code div.innerHTML = this.stripTags();
javascript code return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
javascript code },
javascript blank
javascript code toQueryParams: function() {
javascript code var pairs = this.match(/^\??(.*)$/)[1].split('&');
javascript code return pairs.inject({}, function(params, pairString) {
javascript code var pair = pairString.split('=');
javascript code params[pair[0]] = pair[1];
javascript code return params;
javascript code });
javascript code },
javascript blank
javascript code toArray: function() {
javascript code return this.split('');
javascript code },
javascript blank
javascript code camelize: function() {
javascript code var oStringList = this.split('-');
javascript code if (oStringList.length == 1) return oStringList[0];
javascript blank
javascript code var camelizedString = this.indexOf('-') == 0
javascript code ? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
javascript code : oStringList[0];
javascript blank
javascript code for (var i = 1, len = oStringList.length; i < len; i++) {
javascript code var s = oStringList[i];
javascript code camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
javascript code }
javascript blank
javascript code return camelizedString;
javascript code },
javascript blank
javascript code inspect: function() {
javascript code return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";
javascript code }
javascript code });
javascript blank
javascript code String.prototype.parseQuery = String.prototype.toQueryParams;
javascript blank
javascript code var $break = new Object();
javascript code var $continue = new Object();
javascript blank
javascript code var Enumerable = {
javascript code each: function(iterator) {
javascript code var index = 0;
javascript code try {
javascript code this._each(function(value) {
javascript code try {
javascript code iterator(value, index++);
javascript code } catch (e) {
javascript code if (e != $continue) throw e;
javascript code }
javascript code });
javascript code } catch (e) {
javascript code if (e != $break) throw e;
javascript code }
javascript code },
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javascript code all: function(iterator) {
javascript code var result = true;
javascript code this.each(function(value, index) {
javascript code result = result && !!(iterator || Prototype.K)(value, index);
javascript code if (!result) throw $break;
javascript code });
javascript code return result;
javascript code },
javascript blank
javascript code any: function(iterator) {
javascript code var result = true;
javascript code this.each(function(value, index) {
javascript code if (result = !!(iterator || Prototype.K)(value, index))
javascript code throw $break;
javascript code });
javascript code return result;
javascript code },
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javascript code collect: function(iterator) {
javascript code var results = [];
javascript code this.each(function(value, index) {
javascript code results.push(iterator(value, index));
javascript code });
javascript code return results;
javascript code },
javascript blank
javascript code detect: function (iterator) {
javascript code var result;
javascript code this.each(function(value, index) {
javascript code if (iterator(value, index)) {
javascript code result = value;
javascript code throw $break;
javascript code }
javascript code });
javascript code return result;
javascript code },
javascript blank
javascript code findAll: function(iterator) {
javascript code var results = [];
javascript code this.each(function(value, index) {
javascript code if (iterator(value, index))
javascript code results.push(value);
javascript code });
javascript code return results;
javascript code },
javascript blank
javascript code grep: function(pattern, iterator) {
javascript code var results = [];
javascript code this.each(function(value, index) {
javascript code var stringValue = value.toString();
javascript code if (stringValue.match(pattern))
javascript code results.push((iterator || Prototype.K)(value, index));
javascript code })
javascript code return results;
javascript code },
javascript blank
javascript code include: function(object) {
javascript code var found = false;
javascript code this.each(function(value) {
javascript code if (value == object) {
javascript code found = true;
javascript code throw $break;
javascript code }
javascript code });
javascript code return found;
javascript code },
javascript blank
javascript code inject: function(memo, iterator) {
javascript code this.each(function(value, index) {
javascript code memo = iterator(memo, value, index);
javascript code });
javascript code return memo;
javascript code },
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javascript code invoke: function(method) {
javascript code var args = $A(arguments).slice(1);
javascript code return this.collect(function(value) {
javascript code return value[method].apply(value, args);
javascript code });
javascript code },
javascript blank
javascript code max: function(iterator) {
javascript code var result;
javascript code this.each(function(value, index) {
javascript code value = (iterator || Prototype.K)(value, index);
javascript code if (value >= (result || value))
javascript code result = value;
javascript code });
javascript code return result;
javascript code },
javascript blank
javascript code min: function(iterator) {
javascript code var result;
javascript code this.each(function(value, index) {
javascript code value = (iterator || Prototype.K)(value, index);
javascript code if (value <= (result || value))
javascript code result = value;
javascript code });
javascript code return result;
javascript code },
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javascript code partition: function(iterator) {
javascript code var trues = [], falses = [];
javascript code this.each(function(value, index) {
javascript code ((iterator || Prototype.K)(value, index) ?
javascript code trues : falses).push(value);
javascript code });
javascript code return [trues, falses];
javascript code },
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javascript code pluck: function(property) {
javascript code var results = [];
javascript code this.each(function(value, index) {
javascript code results.push(value[property]);
javascript code });
javascript code return results;
javascript code },
javascript blank
javascript code reject: function(iterator) {
javascript code var results = [];
javascript code this.each(function(value, index) {
javascript code if (!iterator(value, index))
javascript code results.push(value);
javascript code });
javascript code return results;
javascript code },
javascript blank
javascript code sortBy: function(iterator) {
javascript code return this.collect(function(value, index) {
javascript code return {value: value, criteria: iterator(value, index)};
javascript code }).sort(function(left, right) {
javascript code var a = left.criteria, b = right.criteria;
javascript code return a < b ? -1 : a > b ? 1 : 0;
javascript code }).pluck('value');
javascript code },
javascript blank
javascript code toArray: function() {
javascript code return this.collect(Prototype.K);
javascript code },
javascript blank
javascript code zip: function() {
javascript code var iterator = Prototype.K, args = $A(arguments);
javascript code if (typeof args.last() == 'function')
javascript code iterator = args.pop();
javascript blank
javascript code var collections = [this].concat(args).map($A);
javascript code return this.map(function(value, index) {
javascript code iterator(value = collections.pluck(index));
javascript code return value;
javascript code });
javascript code },
javascript blank
javascript code inspect: function() {
javascript code return '#<Enumerable:' + this.toArray().inspect() + '>';
javascript code }
javascript code }
javascript blank
javascript code Object.extend(Enumerable, {
javascript code map: Enumerable.collect,
javascript code find: Enumerable.detect,
javascript code select: Enumerable.findAll,
javascript code member: Enumerable.include,
javascript code entries: Enumerable.toArray
javascript code });
javascript code var $A = Array.from = function(iterable) {
javascript code if (!iterable) return [];
javascript code if (iterable.toArray) {
javascript code return iterable.toArray();
javascript code } else {
javascript code var results = [];
javascript code for (var i = 0; i < iterable.length; i++)
javascript code results.push(iterable[i]);
javascript code return results;
javascript code }
javascript code }
javascript blank
javascript code Object.extend(Array.prototype, Enumerable);
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javascript code Array.prototype._reverse = Array.prototype.reverse;
javascript blank
javascript code Object.extend(Array.prototype, {
javascript code _each: function(iterator) {
javascript code for (var i = 0; i < this.length; i++)
javascript code iterator(this[i]);
javascript code },
javascript blank
javascript code clear: function() {
javascript code this.length = 0;
javascript code return this;
javascript code },
javascript blank
javascript code first: function() {
javascript code return this[0];
javascript code },
javascript blank
javascript code last: function() {
javascript code return this[this.length - 1];
javascript code },
javascript blank
javascript code compact: function() {
javascript code return this.select(function(value) {
javascript code return value != undefined || value != null;
javascript code });
javascript code },
javascript blank
javascript code flatten: function() {
javascript code return this.inject([], function(array, value) {
javascript code return array.concat(value.constructor == Array ?
javascript code value.flatten() : [value]);
javascript code });
javascript code },
javascript blank
javascript code without: function() {
javascript code var values = $A(arguments);
javascript code return this.select(function(value) {
javascript code return !values.include(value);
javascript code });
javascript code },
javascript blank
javascript code indexOf: function(object) {
javascript code for (var i = 0; i < this.length; i++)
javascript code if (this[i] == object) return i;
javascript code return -1;
javascript code },
javascript blank
javascript code reverse: function(inline) {
javascript code return (inline !== false ? this : this.toArray())._reverse();
javascript code },
javascript blank
javascript code shift: function() {
javascript code var result = this[0];
javascript code for (var i = 0; i < this.length - 1; i++)
javascript code this[i] = this[i + 1];
javascript code this.length--;
javascript code return result;
javascript code },
javascript blank
javascript code inspect: function() {
javascript code return '[' + this.map(Object.inspect).join(', ') + ']';
javascript code }
javascript code });
javascript code var Hash = {
javascript code _each: function(iterator) {
javascript code for (key in this) {
javascript code var value = this[key];
javascript code if (typeof value == 'function') continue;
javascript blank
javascript code var pair = [key, value];
javascript code pair.key = key;
javascript code pair.value = value;
javascript code iterator(pair);
javascript code }
javascript code },
javascript blank
javascript code keys: function() {
javascript code return this.pluck('key');
javascript code },
javascript blank
javascript code values: function() {
javascript code return this.pluck('value');
javascript code },
javascript blank
javascript code merge: function(hash) {
javascript code return $H(hash).inject($H(this), function(mergedHash, pair) {
javascript code mergedHash[pair.key] = pair.value;
javascript code return mergedHash;
javascript code });
javascript code },
javascript blank
javascript code toQueryString: function() {
javascript code return this.map(function(pair) {
javascript code return pair.map(encodeURIComponent).join('=');
javascript code }).join('&');
javascript code },
javascript blank
javascript code inspect: function() {
javascript code return '#<Hash:{' + this.map(function(pair) {
javascript code return pair.map(Object.inspect).join(': ');
javascript code }).join(', ') + '}>';
javascript code }
javascript code }
javascript blank
javascript code function $H(object) {
javascript code var hash = Object.extend({}, object || {});
javascript code Object.extend(hash, Enumerable);
javascript code Object.extend(hash, Hash);
javascript code return hash;
javascript code }
javascript code ObjectRange = Class.create();
javascript code Object.extend(ObjectRange.prototype, Enumerable);
javascript code Object.extend(ObjectRange.prototype, {
javascript code initialize: function(start, end, exclusive) {
javascript code this.start = start;
javascript code this.end = end;
javascript code this.exclusive = exclusive;
javascript code },
javascript blank
javascript code _each: function(iterator) {
javascript code var value = this.start;
javascript code do {
javascript code iterator(value);
javascript code value = value.succ();
javascript code } while (this.include(value));
javascript code },
javascript blank
javascript code include: function(value) {
javascript code if (value < this.start)
javascript code return false;
javascript code if (this.exclusive)
javascript code return value < this.end;
javascript code return value <= this.end;
javascript code }
javascript code });
javascript blank
javascript code var $R = function(start, end, exclusive) {
javascript code return new ObjectRange(start, end, exclusive);
javascript code }
javascript blank
javascript code var Ajax = {
javascript code getTransport: function() {
javascript code return Try.these(
javascript code function() {return new ActiveXObject('Msxml2.XMLHTTP')},
javascript code function() {return new ActiveXObject('Microsoft.XMLHTTP')},
javascript code function() {return new XMLHttpRequest()}
javascript code ) || false;
javascript code },
javascript blank
javascript code activeRequestCount: 0
javascript code }
javascript blank
javascript code Ajax.Responders = {
javascript code responders: [],
javascript blank
javascript code _each: function(iterator) {
javascript code this.responders._each(iterator);
javascript code },
javascript blank
javascript code register: function(responderToAdd) {
javascript code if (!this.include(responderToAdd))
javascript code this.responders.push(responderToAdd);
javascript code },
javascript blank
javascript code unregister: function(responderToRemove) {
javascript code this.responders = this.responders.without(responderToRemove);
javascript code },
javascript blank
javascript code dispatch: function(callback, request, transport, json) {
javascript code this.each(function(responder) {
javascript code if (responder[callback] && typeof responder[callback] == 'function') {
javascript code try {
javascript code responder[callback].apply(responder, [request, transport, json]);
javascript code } catch (e) {}
javascript code }
javascript code });
javascript code }
javascript code };
javascript blank
javascript code Object.extend(Ajax.Responders, Enumerable);
javascript blank
javascript code Ajax.Responders.register({
javascript code onCreate: function() {
javascript code Ajax.activeRequestCount++;
javascript code },
javascript blank
javascript code onComplete: function() {
javascript code Ajax.activeRequestCount--;
javascript code }
javascript code });
javascript blank
javascript code Ajax.Base = function() {};
javascript code Ajax.Base.prototype = {
javascript code setOptions: function(options) {
javascript code this.options = {
javascript code method: 'post',
javascript code asynchronous: true,
javascript code parameters: ''
javascript code }
javascript code Object.extend(this.options, options || {});
javascript code },
javascript blank
javascript code responseIsSuccess: function() {
javascript code return this.transport.status == undefined
javascript code || this.transport.status == 0
javascript code || (this.transport.status >= 200 && this.transport.status < 300);
javascript code },
javascript blank
javascript code responseIsFailure: function() {
javascript code return !this.responseIsSuccess();
javascript code }
javascript code }
javascript blank
javascript code Ajax.Request = Class.create();
javascript code Ajax.Request.Events =
javascript code ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
javascript blank
javascript code Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
javascript code initialize: function(url, options) {
javascript code this.transport = Ajax.getTransport();
javascript code this.setOptions(options);
javascript code this.request(url);
javascript code },
javascript blank
javascript code request: function(url) {
javascript code var parameters = this.options.parameters || '';
javascript code if (parameters.length > 0) parameters += '&_=';
javascript blank
javascript code try {
javascript code this.url = url;
javascript code if (this.options.method == 'get' && parameters.length > 0)
javascript code this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;
javascript blank
javascript code Ajax.Responders.dispatch('onCreate', this, this.transport);
javascript blank
javascript code this.transport.open(this.options.method, this.url,
javascript code this.options.asynchronous);
javascript blank
javascript code if (this.options.asynchronous) {
javascript code this.transport.onreadystatechange = this.onStateChange.bind(this);
javascript code setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
javascript code }
javascript blank
javascript code this.setRequestHeaders();
javascript blank
javascript code var body = this.options.postBody ? this.options.postBody : parameters;
javascript code this.transport.send(this.options.method == 'post' ? body : null);
javascript blank
javascript code } catch (e) {
javascript code this.dispatchException(e);
javascript code }
javascript code },
javascript blank
javascript code setRequestHeaders: function() {
javascript code var requestHeaders =
javascript code ['X-Requested-With', 'XMLHttpRequest',
javascript code 'X-Prototype-Version', Prototype.Version];
javascript blank
javascript code if (this.options.method == 'post') {
javascript code requestHeaders.push('Content-type',
javascript code 'application/x-www-form-urlencoded');
javascript blank
javascript comment /* Force "Connection: close" for Mozilla browsers to work around
javascript comment * a bug where XMLHttpReqeuest sends an incorrect Content-length
javascript comment * header. See Mozilla Bugzilla #246651.
javascript comment */
javascript code if (this.transport.overrideMimeType)
javascript code requestHeaders.push('Connection', 'close');
javascript code }
javascript blank
javascript code if (this.options.requestHeaders)
javascript code requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);
javascript blank
javascript code for (var i = 0; i < requestHeaders.length; i += 2)
javascript code this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
javascript code },
javascript blank
javascript code onStateChange: function() {
javascript code var readyState = this.transport.readyState;
javascript code if (readyState != 1)
javascript code this.respondToReadyState(this.transport.readyState);
javascript code },
javascript blank
javascript code header: function(name) {
javascript code try {
javascript code return this.transport.getResponseHeader(name);
javascript code } catch (e) {}
javascript code },
javascript blank
javascript code evalJSON: function() {
javascript code try {
javascript code return eval(this.header('X-JSON'));
javascript code } catch (e) {}
javascript code },
javascript blank
javascript code evalResponse: function() {
javascript code try {
javascript code return eval(this.transport.responseText);
javascript code } catch (e) {
javascript code this.dispatchException(e);
javascript code }
javascript code },
javascript blank
javascript code respondToReadyState: function(readyState) {
javascript code var event = Ajax.Request.Events[readyState];
javascript code var transport = this.transport, json = this.evalJSON();
javascript blank
javascript code if (event == 'Complete') {
javascript code try {
javascript code (this.options['on' + this.transport.status]
javascript code || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
javascript code || Prototype.emptyFunction)(transport, json);
javascript code } catch (e) {
javascript code this.dispatchException(e);
javascript code }
javascript blank
javascript code if ((this.header('Content-type') || '').match(/^text\/javascript/i))
javascript code this.evalResponse();
javascript code }
javascript blank
javascript code try {
javascript code (this.options['on' + event] || Prototype.emptyFunction)(transport, json);
javascript code Ajax.Responders.dispatch('on' + event, this, transport, json);
javascript code } catch (e) {
javascript code this.dispatchException(e);
javascript code }
javascript blank
javascript comment /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
javascript code if (event == 'Complete')
javascript code this.transport.onreadystatechange = Prototype.emptyFunction;
javascript code },
javascript blank
javascript code dispatchException: function(exception) {
javascript code (this.options.onException || Prototype.emptyFunction)(this, exception);
javascript code Ajax.Responders.dispatch('onException', this, exception);
javascript code }
javascript code });
javascript blank
javascript code Ajax.Updater = Class.create();
javascript blank
javascript code Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
javascript code initialize: function(container, url, options) {
javascript code this.containers = {
javascript code success: container.success ? $(container.success) : $(container),
javascript code failure: container.failure ? $(container.failure) :
javascript code (container.success ? null : $(container))
javascript code }
javascript blank
javascript code this.transport = Ajax.getTransport();
javascript code this.setOptions(options);
javascript blank
javascript code var onComplete = this.options.onComplete || Prototype.emptyFunction;
javascript code this.options.onComplete = (function(transport, object) {
javascript code this.updateContent();
javascript code onComplete(transport, object);
javascript code }).bind(this);
javascript blank
javascript code this.request(url);
javascript code },
javascript blank
javascript code updateContent: function() {
javascript code var receiver = this.responseIsSuccess() ?
javascript code this.containers.success : this.containers.failure;
javascript code var response = this.transport.responseText;
javascript blank
javascript code if (!this.options.evalScripts)
javascript code response = response.stripScripts();
javascript blank
javascript code if (receiver) {
javascript code if (this.options.insertion) {
javascript code new this.options.insertion(receiver, response);
javascript code } else {
javascript code Element.update(receiver, response);
javascript code }
javascript code }
javascript blank
javascript code if (this.responseIsSuccess()) {
javascript code if (this.onComplete)
javascript code setTimeout(this.onComplete.bind(this), 10);
javascript code }
javascript code }
javascript code });
javascript blank
javascript code Ajax.PeriodicalUpdater = Class.create();
javascript code Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
javascript code initialize: function(container, url, options) {
javascript code this.setOptions(options);
javascript code this.onComplete = this.options.onComplete;
javascript blank
javascript code this.frequency = (this.options.frequency || 2);
javascript code this.decay = (this.options.decay || 1);
javascript blank
javascript code this.updater = {};
javascript code this.container = container;
javascript code this.url = url;
javascript blank
javascript code this.start();
javascript code },
javascript blank
javascript code start: function() {
javascript code this.options.onComplete = this.updateComplete.bind(this);
javascript code this.onTimerEvent();
javascript code },
javascript blank
javascript code stop: function() {
javascript code this.updater.onComplete = undefined;
javascript code clearTimeout(this.timer);
javascript code (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
javascript code },
javascript blank
javascript code updateComplete: function(request) {
javascript code if (this.options.decay) {
javascript code this.decay = (request.responseText == this.lastText ?
javascript code this.decay * this.options.decay : 1);
javascript blank
javascript code this.lastText = request.responseText;
javascript code }
javascript code this.timer = setTimeout(this.onTimerEvent.bind(this),
javascript code this.decay * this.frequency * 1000);
javascript code },
javascript blank
javascript code onTimerEvent: function() {
javascript code this.updater = new Ajax.Updater(this.container, this.url, this.options);
javascript code }
javascript code });
javascript code document.getElementsByClassName = function(className, parentElement) {
javascript code var children = ($(parentElement) || document.body).getElementsByTagName('*');
javascript code return $A(children).inject([], function(elements, child) {
javascript code if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
javascript code elements.push(child);
javascript code return elements;
javascript code });
javascript code }
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code if (!window.Element) {
javascript code var Element = new Object();
javascript code }
javascript blank
javascript code Object.extend(Element, {
javascript code visible: function(element) {
javascript code return $(element).style.display != 'none';
javascript code },
javascript blank
javascript code toggle: function() {
javascript code for (var i = 0; i < arguments.length; i++) {
javascript code var element = $(arguments[i]);
javascript code Element[Element.visible(element) ? 'hide' : 'show'](element);
javascript code }
javascript code },
javascript blank
javascript code hide: function() {
javascript code for (var i = 0; i < arguments.length; i++) {
javascript code var element = $(arguments[i]);
javascript code element.style.display = 'none';
javascript code }
javascript code },
javascript blank
javascript code show: function() {
javascript code for (var i = 0; i < arguments.length; i++) {
javascript code var element = $(arguments[i]);
javascript code element.style.display = '';
javascript code }
javascript code },
javascript blank
javascript code remove: function(element) {
javascript code element = $(element);
javascript code element.parentNode.removeChild(element);
javascript code },
javascript blank
javascript code update: function(element, html) {
javascript code $(element).innerHTML = html.stripScripts();
javascript code setTimeout(function() {html.evalScripts()}, 10);
javascript code },
javascript blank
javascript code getHeight: function(element) {
javascript code element = $(element);
javascript code return element.offsetHeight;
javascript code },
javascript blank
javascript code classNames: function(element) {
javascript code return new Element.ClassNames(element);
javascript code },
javascript blank
javascript code hasClassName: function(element, className) {
javascript code if (!(element = $(element))) return;
javascript code return Element.classNames(element).include(className);
javascript code },
javascript blank
javascript code addClassName: function(element, className) {
javascript code if (!(element = $(element))) return;
javascript code return Element.classNames(element).add(className);
javascript code },
javascript blank
javascript code removeClassName: function(element, className) {
javascript code if (!(element = $(element))) return;
javascript code return Element.classNames(element).remove(className);
javascript code },
javascript blank
javascript comment // removes whitespace-only text node children
javascript code cleanWhitespace: function(element) {
javascript code element = $(element);
javascript code for (var i = 0; i < element.childNodes.length; i++) {
javascript code var node = element.childNodes[i];
javascript code if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
javascript code Element.remove(node);
javascript code }
javascript code },
javascript blank
javascript code empty: function(element) {
javascript code return $(element).innerHTML.match(/^\s*$/);
javascript code },
javascript blank
javascript code scrollTo: function(element) {
javascript code element = $(element);
javascript code var x = element.x ? element.x : element.offsetLeft,
javascript code y = element.y ? element.y : element.offsetTop;
javascript code window.scrollTo(x, y);
javascript code },
javascript blank
javascript code getStyle: function(element, style) {
javascript code element = $(element);
javascript code var value = element.style[style.camelize()];
javascript code if (!value) {
javascript code if (document.defaultView && document.defaultView.getComputedStyle) {
javascript code var css = document.defaultView.getComputedStyle(element, null);
javascript code value = css ? css.getPropertyValue(style) : null;
javascript code } else if (element.currentStyle) {
javascript code value = element.currentStyle[style.camelize()];
javascript code }
javascript code }
javascript blank
javascript code if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
javascript code if (Element.getStyle(element, 'position') == 'static') value = 'auto';
javascript blank
javascript code return value == 'auto' ? null : value;
javascript code },
javascript blank
javascript code setStyle: function(element, style) {
javascript code element = $(element);
javascript code for (name in style)
javascript code element.style[name.camelize()] = style[name];
javascript code },
javascript blank
javascript code getDimensions: function(element) {
javascript code element = $(element);
javascript code if (Element.getStyle(element, 'display') != 'none')
javascript code return {width: element.offsetWidth, height: element.offsetHeight};
javascript blank
javascript comment // All *Width and *Height properties give 0 on elements with display none,
javascript comment // so enable the element temporarily
javascript code var els = element.style;
javascript code var originalVisibility = els.visibility;
javascript code var originalPosition = els.position;
javascript code els.visibility = 'hidden';
javascript code els.position = 'absolute';
javascript code els.display = '';
javascript code var originalWidth = element.clientWidth;
javascript code var originalHeight = element.clientHeight;
javascript code els.display = 'none';
javascript code els.position = originalPosition;
javascript code els.visibility = originalVisibility;
javascript code return {width: originalWidth, height: originalHeight};
javascript code },
javascript blank
javascript code makePositioned: function(element) {
javascript code element = $(element);
javascript code var pos = Element.getStyle(element, 'position');
javascript code if (pos == 'static' || !pos) {
javascript code element._madePositioned = true;
javascript code element.style.position = 'relative';
javascript comment // Opera returns the offset relative to the positioning context, when an
javascript comment // element is position relative but top and left have not been defined
javascript code if (window.opera) {
javascript code element.style.top = 0;
javascript code element.style.left = 0;
javascript code }
javascript code }
javascript code },
javascript blank
javascript code undoPositioned: function(element) {
javascript code element = $(element);
javascript code if (element._madePositioned) {
javascript code element._madePositioned = undefined;
javascript code element.style.position =
javascript code element.style.top =
javascript code element.style.left =
javascript code element.style.bottom =
javascript code element.style.right = '';
javascript code }
javascript code },
javascript blank
javascript code makeClipping: function(element) {
javascript code element = $(element);
javascript code if (element._overflow) return;
javascript code element._overflow = element.style.overflow;
javascript code if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')
javascript code element.style.overflow = 'hidden';
javascript code },
javascript blank
javascript code undoClipping: function(element) {
javascript code element = $(element);
javascript code if (element._overflow) return;
javascript code element.style.overflow = element._overflow;
javascript code element._overflow = undefined;
javascript code }
javascript code });
javascript blank
javascript code var Toggle = new Object();
javascript code Toggle.display = Element.toggle;
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code Abstract.Insertion = function(adjacency) {
javascript code this.adjacency = adjacency;
javascript code }
javascript blank
javascript code Abstract.Insertion.prototype = {
javascript code initialize: function(element, content) {
javascript code this.element = $(element);
javascript code this.content = content.stripScripts();
javascript blank
javascript code if (this.adjacency && this.element.insertAdjacentHTML) {
javascript code try {
javascript code this.element.insertAdjacentHTML(this.adjacency, this.content);
javascript code } catch (e) {
javascript code if (this.element.tagName.toLowerCase() == 'tbody') {
javascript code this.insertContent(this.contentFromAnonymousTable());
javascript code } else {
javascript code throw e;
javascript code }
javascript code }
javascript code } else {
javascript code this.range = this.element.ownerDocument.createRange();
javascript code if (this.initializeRange) this.initializeRange();
javascript code this.insertContent([this.range.createContextualFragment(this.content)]);
javascript code }
javascript blank
javascript code setTimeout(function() {content.evalScripts()}, 10);
javascript code },
javascript blank
javascript code contentFromAnonymousTable: function() {
javascript code var div = document.createElement('div');
javascript code div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
javascript code return $A(div.childNodes[0].childNodes[0].childNodes);
javascript code }
javascript code }
javascript blank
javascript code var Insertion = new Object();
javascript blank
javascript code Insertion.Before = Class.create();
javascript code Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
javascript code initializeRange: function() {
javascript code this.range.setStartBefore(this.element);
javascript code },
javascript blank
javascript code insertContent: function(fragments) {
javascript code fragments.each((function(fragment) {
javascript code this.element.parentNode.insertBefore(fragment, this.element);
javascript code }).bind(this));
javascript code }
javascript code });
javascript blank
javascript code Insertion.Top = Class.create();
javascript code Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
javascript code initializeRange: function() {
javascript code this.range.selectNodeContents(this.element);
javascript code this.range.collapse(true);
javascript code },
javascript blank
javascript code insertContent: function(fragments) {
javascript code fragments.reverse(false).each((function(fragment) {
javascript code this.element.insertBefore(fragment, this.element.firstChild);
javascript code }).bind(this));
javascript code }
javascript code });
javascript blank
javascript code Insertion.Bottom = Class.create();
javascript code Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
javascript code initializeRange: function() {
javascript code this.range.selectNodeContents(this.element);
javascript code this.range.collapse(this.element);
javascript code },
javascript blank
javascript code insertContent: function(fragments) {
javascript code fragments.each((function(fragment) {
javascript code this.element.appendChild(fragment);
javascript code }).bind(this));
javascript code }
javascript code });
javascript blank
javascript code Insertion.After = Class.create();
javascript code Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
javascript code initializeRange: function() {
javascript code this.range.setStartAfter(this.element);
javascript code },
javascript blank
javascript code insertContent: function(fragments) {
javascript code fragments.each((function(fragment) {
javascript code this.element.parentNode.insertBefore(fragment,
javascript code this.element.nextSibling);
javascript code }).bind(this));
javascript code }
javascript code });
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code Element.ClassNames = Class.create();
javascript code Element.ClassNames.prototype = {
javascript code initialize: function(element) {
javascript code this.element = $(element);
javascript code },
javascript blank
javascript code _each: function(iterator) {
javascript code this.element.className.split(/\s+/).select(function(name) {
javascript code return name.length > 0;
javascript code })._each(iterator);
javascript code },
javascript blank
javascript code set: function(className) {
javascript code this.element.className = className;
javascript code },
javascript blank
javascript code add: function(classNameToAdd) {
javascript code if (this.include(classNameToAdd)) return;
javascript code this.set(this.toArray().concat(classNameToAdd).join(' '));
javascript code },
javascript blank
javascript code remove: function(classNameToRemove) {
javascript code if (!this.include(classNameToRemove)) return;
javascript code this.set(this.select(function(className) {
javascript code return className != classNameToRemove;
javascript code }).join(' '));
javascript code },
javascript blank
javascript code toString: function() {
javascript code return this.toArray().join(' ');
javascript code }
javascript code }
javascript blank
javascript code Object.extend(Element.ClassNames.prototype, Enumerable);
javascript code var Field = {
javascript code clear: function() {
javascript code for (var i = 0; i < arguments.length; i++)
javascript code $(arguments[i]).value = '';
javascript code },
javascript blank
javascript code focus: function(element) {
javascript code $(element).focus();
javascript code },
javascript blank
javascript code present: function() {
javascript code for (var i = 0; i < arguments.length; i++)
javascript code if ($(arguments[i]).value == '') return false;
javascript code return true;
javascript code },
javascript blank
javascript code select: function(element) {
javascript code $(element).select();
javascript code },
javascript blank
javascript code activate: function(element) {
javascript code element = $(element);
javascript code element.focus();
javascript code if (element.select)
javascript code element.select();
javascript code }
javascript code }
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code var Form = {
javascript code serialize: function(form) {
javascript code var elements = Form.getElements($(form));
javascript code var queryComponents = new Array();
javascript blank
javascript code for (var i = 0; i < elements.length; i++) {
javascript code var queryComponent = Form.Element.serialize(elements[i]);
javascript code if (queryComponent)
javascript code queryComponents.push(queryComponent);
javascript code }
javascript blank
javascript code return queryComponents.join('&');
javascript code },
javascript blank
javascript code getElements: function(form) {
javascript code form = $(form);
javascript code var elements = new Array();
javascript blank
javascript code for (tagName in Form.Element.Serializers) {
javascript code var tagElements = form.getElementsByTagName(tagName);
javascript code for (var j = 0; j < tagElements.length; j++)
javascript code elements.push(tagElements[j]);
javascript code }
javascript code return elements;
javascript code },
javascript blank
javascript code getInputs: function(form, typeName, name) {
javascript code form = $(form);
javascript code var inputs = form.getElementsByTagName('input');
javascript blank
javascript code if (!typeName && !name)
javascript code return inputs;
javascript blank
javascript code var matchingInputs = new Array();
javascript code for (var i = 0; i < inputs.length; i++) {
javascript code var input = inputs[i];
javascript code if ((typeName && input.type != typeName) ||
javascript code (name && input.name != name))
javascript code continue;
javascript code matchingInputs.push(input);
javascript code }
javascript blank
javascript code return matchingInputs;
javascript code },
javascript blank
javascript code disable: function(form) {
javascript code var elements = Form.getElements(form);
javascript code for (var i = 0; i < elements.length; i++) {
javascript code var element = elements[i];
javascript code element.blur();
javascript code element.disabled = 'true';
javascript code }
javascript code },
javascript blank
javascript code enable: function(form) {
javascript code var elements = Form.getElements(form);
javascript code for (var i = 0; i < elements.length; i++) {
javascript code var element = elements[i];
javascript code element.disabled = '';
javascript code }
javascript code },
javascript blank
javascript code findFirstElement: function(form) {
javascript code return Form.getElements(form).find(function(element) {
javascript code return element.type != 'hidden' && !element.disabled &&
javascript code ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
javascript code });
javascript code },
javascript blank
javascript code focusFirstElement: function(form) {
javascript code Field.activate(Form.findFirstElement(form));
javascript code },
javascript blank
javascript code reset: function(form) {
javascript code $(form).reset();
javascript code }
javascript code }
javascript blank
javascript code Form.Element = {
javascript code serialize: function(element) {
javascript code element = $(element);
javascript code var method = element.tagName.toLowerCase();
javascript code var parameter = Form.Element.Serializers[method](element);
javascript blank
javascript code if (parameter) {
javascript code var key = encodeURIComponent(parameter[0]);
javascript code if (key.length == 0) return;
javascript blank
javascript code if (parameter[1].constructor != Array)
javascript code parameter[1] = [parameter[1]];
javascript blank
javascript code return parameter[1].map(function(value) {
javascript code return key + '=' + encodeURIComponent(value);
javascript code }).join('&');
javascript code }
javascript code },
javascript blank
javascript code getValue: function(element) {
javascript code element = $(element);
javascript code var method = element.tagName.toLowerCase();
javascript code var parameter = Form.Element.Serializers[method](element);
javascript blank
javascript code if (parameter)
javascript code return parameter[1];
javascript code }
javascript code }
javascript blank
javascript code Form.Element.Serializers = {
javascript code input: function(element) {
javascript code switch (element.type.toLowerCase()) {
javascript code case 'submit':
javascript code case 'hidden':
javascript code case 'password':
javascript code case 'text':
javascript code return Form.Element.Serializers.textarea(element);
javascript code case 'checkbox':
javascript code case 'radio':
javascript code return Form.Element.Serializers.inputSelector(element);
javascript code }
javascript code return false;
javascript code },
javascript blank
javascript code inputSelector: function(element) {
javascript code if (element.checked)
javascript code return [element.name, element.value];
javascript code },
javascript blank
javascript code textarea: function(element) {
javascript code return [element.name, element.value];
javascript code },
javascript blank
javascript code select: function(element) {
javascript code return Form.Element.Serializers[element.type == 'select-one' ?
javascript code 'selectOne' : 'selectMany'](element);
javascript code },
javascript blank
javascript code selectOne: function(element) {
javascript code var value = '', opt, index = element.selectedIndex;
javascript code if (index >= 0) {
javascript code opt = element.options[index];
javascript code value = opt.value;
javascript code if (!value && !('value' in opt))
javascript code value = opt.text;
javascript code }
javascript code return [element.name, value];
javascript code },
javascript blank
javascript code selectMany: function(element) {
javascript code var value = new Array();
javascript code for (var i = 0; i < element.length; i++) {
javascript code var opt = element.options[i];
javascript code if (opt.selected) {
javascript code var optValue = opt.value;
javascript code if (!optValue && !('value' in opt))
javascript code optValue = opt.text;
javascript code value.push(optValue);
javascript code }
javascript code }
javascript code return [element.name, value];
javascript code }
javascript code }
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code var $F = Form.Element.getValue;
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code Abstract.TimedObserver = function() {}
javascript code Abstract.TimedObserver.prototype = {
javascript code initialize: function(element, frequency, callback) {
javascript code this.frequency = frequency;
javascript code this.element = $(element);
javascript code this.callback = callback;
javascript blank
javascript code this.lastValue = this.getValue();
javascript code this.registerCallback();
javascript code },
javascript blank
javascript code registerCallback: function() {
javascript code setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
javascript code },
javascript blank
javascript code onTimerEvent: function() {
javascript code var value = this.getValue();
javascript code if (this.lastValue != value) {
javascript code this.callback(this.element, value);
javascript code this.lastValue = value;
javascript code }
javascript code }
javascript code }
javascript blank
javascript code Form.Element.Observer = Class.create();
javascript code Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
javascript code getValue: function() {
javascript code return Form.Element.getValue(this.element);
javascript code }
javascript code });
javascript blank
javascript code Form.Observer = Class.create();
javascript code Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
javascript code getValue: function() {
javascript code return Form.serialize(this.element);
javascript code }
javascript code });
javascript blank
javascript comment /*--------------------------------------------------------------------------*/
javascript blank
javascript code Abstract.EventObserver = function() {}
javascript code Abstract.EventObserver.prototype = {
javascript code initialize: function(element, callback) {
javascript code this.element = $(element);
javascript code this.callback = callback;
javascript blank
javascript code this.lastValue = this.getValue();
javascript code if (this.element.tagName.toLowerCase() == 'form')
javascript code this.registerFormCallbacks();
javascript code else
javascript code this.registerCallback(this.element);
javascript code },
javascript blank
javascript code onElementEvent: function() {
javascript code var value = this.getValue();
javascript code if (this.lastValue != value) {
javascript code this.callback(this.element, value);
javascript code this.lastValue = value;
javascript code }
javascript code },
javascript blank
javascript code registerFormCallbacks: function() {
javascript code var elements = Form.getElements(this.element);
javascript code for (var i = 0; i < elements.length; i++)
javascript code this.registerCallback(elements[i]);
javascript code },
javascript blank
javascript code registerCallback: function(element) {
javascript code if (element.type) {
javascript code switch (element.type.toLowerCase()) {
javascript code case 'checkbox':
javascript code case 'radio':
javascript code Event.observe(element, 'click', this.onElementEvent.bind(this));
javascript code break;
javascript code case 'password':
javascript code case 'text':
javascript code case 'textarea':
javascript code case 'select-one':
javascript code case 'select-multiple':
javascript code Event.observe(element, 'change', this.onElementEvent.bind(this));
javascript code break;
javascript code }
javascript code }
javascript code }
javascript code }
javascript blank
javascript code Form.Element.EventObserver = Class.create();
javascript code Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
javascript code getValue: function() {
javascript code return Form.Element.getValue(this.element);
javascript code }
javascript code });
javascript blank
javascript code Form.EventObserver = Class.create();
javascript code Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
javascript code getValue: function() {
javascript code return Form.serialize(this.element);
javascript code }
javascript code });
javascript code if (!window.Event) {
javascript code var Event = new Object();
javascript code }
javascript blank
javascript code Object.extend(Event, {
javascript code KEY_BACKSPACE: 8,
javascript code KEY_TAB: 9,
javascript code KEY_RETURN: 13,
javascript code KEY_ESC: 27,
javascript code KEY_LEFT: 37,
javascript code KEY_UP: 38,
javascript code KEY_RIGHT: 39,
javascript code KEY_DOWN: 40,
javascript code KEY_DELETE: 46,
javascript blank
javascript code element: function(event) {
javascript code return event.target || event.srcElement;
javascript code },
javascript blank
javascript code isLeftClick: function(event) {
javascript code return (((event.which) && (event.which == 1)) ||
javascript code ((event.button) && (event.button == 1)));
javascript code },
javascript blank
javascript code pointerX: function(event) {
javascript code return event.pageX || (event.clientX +
javascript code (document.documentElement.scrollLeft || document.body.scrollLeft));
javascript code },
javascript blank
javascript code pointerY: function(event) {
javascript code return event.pageY || (event.clientY +
javascript code (document.documentElement.scrollTop || document.body.scrollTop));
javascript code },
javascript blank
javascript code stop: function(event) {
javascript code if (event.preventDefault) {
javascript code event.preventDefault();
javascript code event.stopPropagation();
javascript code } else {
javascript code event.returnValue = false;
javascript code event.cancelBubble = true;
javascript code }
javascript code },
javascript blank
javascript comment // find the first node with the given tagName, starting from the
javascript comment // node the event was triggered on; traverses the DOM upwards
javascript code findElement: function(event, tagName) {
javascript code var element = Event.element(event);
javascript code while (element.parentNode && (!element.tagName ||
javascript code (element.tagName.toUpperCase() != tagName.toUpperCase())))
javascript code element = element.parentNode;
javascript code return element;
javascript code },
javascript blank
javascript code observers: false,
javascript blank
javascript code _observeAndCache: function(element, name, observer, useCapture) {
javascript code if (!this.observers) this.observers = [];
javascript code if (element.addEventListener) {
javascript code this.observers.push([element, name, observer, useCapture]);
javascript code element.addEventListener(name, observer, useCapture);
javascript code } else if (element.attachEvent) {
javascript code this.observers.push([element, name, observer, useCapture]);
javascript code element.attachEvent('on' + name, observer);
javascript code }
javascript code },
javascript blank
javascript code unloadCache: function() {
javascript code if (!Event.observers) return;
javascript code for (var i = 0; i < Event.observers.length; i++) {
javascript code Event.stopObserving.apply(this, Event.observers[i]);
javascript code Event.observers[i][0] = null;
javascript code }
javascript code Event.observers = false;
javascript code },
javascript blank
javascript code observe: function(element, name, observer, useCapture) {
javascript code var element = $(element);
javascript code useCapture = useCapture || false;
javascript blank
javascript code if (name == 'keypress' &&
javascript code (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
javascript code || element.attachEvent))
javascript code name = 'keydown';
javascript blank
javascript code this._observeAndCache(element, name, observer, useCapture);
javascript code },
javascript blank
javascript code stopObserving: function(element, name, observer, useCapture) {
javascript code var element = $(element);
javascript code useCapture = useCapture || false;
javascript blank
javascript code if (name == 'keypress' &&
javascript code (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
javascript code || element.detachEvent))
javascript code name = 'keydown';
javascript blank
javascript code if (element.removeEventListener) {
javascript code element.removeEventListener(name, observer, useCapture);
javascript code } else if (element.detachEvent) {
javascript code element.detachEvent('on' + name, observer);
javascript code }
javascript code }
javascript code });
javascript blank
javascript comment /* prevent memory leaks in IE */
javascript code Event.observe(window, 'unload', Event.unloadCache, false);
javascript code var Position = {
javascript comment // set to true if needed, warning: firefox performance problems
javascript comment // NOT neeeded for page scrolling, only if draggable contained in
javascript comment // scrollable elements
javascript code includeScrollOffsets: false,
javascript blank
javascript comment // must be called before calling withinIncludingScrolloffset, every time the
javascript comment // page is scrolled
javascript code prepare: function() {
javascript code this.deltaX = window.pageXOffset
javascript code || document.documentElement.scrollLeft
javascript code || document.body.scrollLeft
javascript code || 0;
javascript code this.deltaY = window.pageYOffset
javascript code || document.documentElement.scrollTop
javascript code || document.body.scrollTop
javascript code || 0;
javascript code },
javascript blank
javascript code realOffset: function(element) {
javascript code var valueT = 0, valueL = 0;
javascript code do {
javascript code valueT += element.scrollTop || 0;
javascript code valueL += element.scrollLeft || 0;
javascript code element = element.parentNode;
javascript code } while (element);
javascript code return [valueL, valueT];
javascript code },
javascript blank
javascript code cumulativeOffset: function(element) {
javascript code var valueT = 0, valueL = 0;
javascript code do {
javascript code valueT += element.offsetTop || 0;
javascript code valueL += element.offsetLeft || 0;
javascript code element = element.offsetParent;
javascript code } while (element);
javascript code return [valueL, valueT];
javascript code },
javascript blank
javascript code positionedOffset: function(element) {
javascript code var valueT = 0, valueL = 0;
javascript code do {
javascript code valueT += element.offsetTop || 0;
javascript code valueL += element.offsetLeft || 0;
javascript code element = element.offsetParent;
javascript code if (element) {
javascript code p = Element.getStyle(element, 'position');
javascript code if (p == 'relative' || p == 'absolute') break;
javascript code }
javascript code } while (element);
javascript code return [valueL, valueT];
javascript code },
javascript blank
javascript code offsetParent: function(element) {
javascript code if (element.offsetParent) return element.offsetParent;
javascript code if (element == document.body) return element;
javascript blank
javascript code while ((element = element.parentNode) && element != document.body)
javascript code if (Element.getStyle(element, 'position') != 'static')
javascript code return element;
javascript blank
javascript code return document.body;
javascript code },
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javascript comment // caches x/y coordinate pair to use with overlap
javascript code within: function(element, x, y) {
javascript code if (this.includeScrollOffsets)
javascript code return this.withinIncludingScrolloffsets(element, x, y);
javascript code this.xcomp = x;
javascript code this.ycomp = y;
javascript code this.offset = this.cumulativeOffset(element);
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javascript code return (y >= this.offset[1] &&
javascript code y < this.offset[1] + element.offsetHeight &&
javascript code x >= this.offset[0] &&
javascript code x < this.offset[0] + element.offsetWidth);
javascript code },
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javascript code withinIncludingScrolloffsets: function(element, x, y) {
javascript code var offsetcache = this.realOffset(element);
javascript blank
javascript code this.xcomp = x + offsetcache[0] - this.deltaX;
javascript code this.ycomp = y + offsetcache[1] - this.deltaY;
javascript code this.offset = this.cumulativeOffset(element);
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javascript code return (this.ycomp >= this.offset[1] &&
javascript code this.ycomp < this.offset[1] + element.offsetHeight &&
javascript code this.xcomp >= this.offset[0] &&
javascript code this.xcomp < this.offset[0] + element.offsetWidth);
javascript code },
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javascript comment // within must be called directly before
javascript code overlap: function(mode, element) {
javascript code if (!mode) return 0;
javascript code if (mode == 'vertical')
javascript code return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
javascript code element.offsetHeight;
javascript code if (mode == 'horizontal')
javascript code return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
javascript code element.offsetWidth;
javascript code },
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javascript code clone: function(source, target) {
javascript code source = $(source);
javascript code target = $(target);
javascript code target.style.position = 'absolute';
javascript code var offsets = this.cumulativeOffset(source);
javascript code target.style.top = offsets[1] + 'px';
javascript code target.style.left = offsets[0] + 'px';
javascript code target.style.width = source.offsetWidth + 'px';
javascript code target.style.height = source.offsetHeight + 'px';
javascript code },
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javascript code page: function(forElement) {
javascript code var valueT = 0, valueL = 0;
javascript blank
javascript code var element = forElement;
javascript code do {
javascript code valueT += element.offsetTop || 0;
javascript code valueL += element.offsetLeft || 0;
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javascript comment // Safari fix
javascript code if (element.offsetParent==document.body)
javascript code if (Element.getStyle(element,'position')=='absolute') break;
javascript blank
javascript code } while (element = element.offsetParent);
javascript blank
javascript code element = forElement;
javascript code do {
javascript code valueT -= element.scrollTop || 0;
javascript code valueL -= element.scrollLeft || 0;
javascript code } while (element = element.parentNode);
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javascript code return [valueL, valueT];
javascript code },
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javascript code clone: function(source, target) {
javascript code var options = Object.extend({
javascript code setLeft: true,
javascript code setTop: true,
javascript code setWidth: true,
javascript code setHeight: true,
javascript code offsetTop: 0,
javascript code offsetLeft: 0
javascript code }, arguments[2] || {})
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javascript comment // find page position of source
javascript code source = $(source);
javascript code var p = Position.page(source);
javascript blank
javascript comment // find coordinate system to use
javascript code target = $(target);
javascript code var delta = [0, 0];
javascript code var parent = null;
javascript comment // delta [0,0] will do fine with position: fixed elements,
javascript comment // position:absolute needs offsetParent deltas
javascript code if (Element.getStyle(target,'position') == 'absolute') {
javascript code parent = Position.offsetParent(target);
javascript code delta = Position.page(parent);
javascript code }
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javascript comment // correct by body offsets (fixes Safari)
javascript code if (parent == document.body) {
javascript code delta[0] -= document.body.offsetLeft;
javascript code delta[1] -= document.body.offsetTop;
javascript code }
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javascript comment // set position
javascript code if(options.setLeft) target.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
javascript code if(options.setTop) target.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
javascript code if(options.setWidth) target.style.width = source.offsetWidth + 'px';
javascript code if(options.setHeight) target.style.height = source.offsetHeight + 'px';
javascript code },
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javascript code absolutize: function(element) {
javascript code element = $(element);
javascript code if (element.style.position == 'absolute') return;
javascript code Position.prepare();
javascript blank
javascript code var offsets = Position.positionedOffset(element);
javascript code var top = offsets[1];
javascript code var left = offsets[0];
javascript code var width = element.clientWidth;
javascript code var height = element.clientHeight;
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javascript code element._originalLeft = left - parseFloat(element.style.left || 0);
javascript code element._originalTop = top - parseFloat(element.style.top || 0);
javascript code element._originalWidth = element.style.width;
javascript code element._originalHeight = element.style.height;
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javascript code element.style.position = 'absolute';
javascript code element.style.top = top + 'px';;
javascript code element.style.left = left + 'px';;
javascript code element.style.width = width + 'px';;
javascript code element.style.height = height + 'px';;
javascript code },
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javascript code relativize: function(element) {
javascript code element = $(element);
javascript code if (element.style.position == 'relative') return;
javascript code Position.prepare();
javascript blank
javascript code element.style.position = 'relative';
javascript code var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
javascript code var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
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javascript code element.style.top = top + 'px';
javascript code element.style.left = left + 'px';
javascript code element.style.height = element._originalHeight;
javascript code element.style.width = element._originalWidth;
javascript code }
javascript code }
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javascript comment // Safari returns margins on body which is incorrect if the child is absolutely
javascript comment // positioned. For performance reasons, redefine Position.cumulativeOffset for
javascript comment // KHTML/WebKit only.
javascript code if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
javascript code Position.cumulativeOffset = function(element) {
javascript code var valueT = 0, valueL = 0;
javascript code do {
javascript code valueT += element.offsetTop || 0;
javascript code valueL += element.offsetLeft || 0;
javascript code if (element.offsetParent == document.body)
javascript code if (Element.getStyle(element, 'position') == 'absolute') break;
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javascript code element = element.offsetParent;
javascript code } while (element);
javascript blank
javascript code return [valueL, valueT];
javascript code }
javascript code }