prototype.js
No OneTemporary
Actions

Subscribers

None

File Metadata

Created: Sun, Mar 9, 7:00 PM

prototype.js
View Options

	/* Prototype JavaScript framework, version 1.4.0
	* (c) 2005 Sam Stephenson <sam@conio.net>
	*
	* THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff
	* against the source tree, available from the Prototype darcs repository.
	*
	* 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: '1.4.0',
	ScriptFragment: '(?:<script.?>)((\n\|\r\|.)?)(?:<\/script>)',

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

	var Class = {
	create: function() {
	return function() {
	this.initialize.apply(this, arguments);
	}
	}
	}

	var Abstract = new Object();

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

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

	Function.prototype.bind = function() {
	var __method = this, args = $A(arguments), object = args.shift();
	return function() {
	return __method.apply(object, args.concat($A(arguments)));
	}
	}

	Function.prototype.bindAsEventListener = function(object) {
	var __method = this;
	return function(event) {
	return __method.call(object, event \|\| window.event);
	}
	}

	Object.extend(Number.prototype, {
	toColorPart: function() {
	var digits = this.toString(16);
	if (this < 16) return '0' + digits;
	return digits;
	},

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

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

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

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

	return returnValue;
	}
	}

	/--------------------------------------------------------------------------/

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

	this.registerCallback();
	},

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

	onTimerEvent: function() {
	if (!this.currentlyExecuting) {
	try {
	this.currentlyExecuting = true;
	this.callback();
	} finally {
	this.currentlyExecuting = false;
	}
	}
	}
	}

	/--------------------------------------------------------------------------/

	function $() {
	var elements = new Array();

	for (var i = 0; i < arguments.length; i++) {
	var element = arguments[i];
	if (typeof element == 'string')
	element = document.getElementById(element);

	if (arguments.length == 1)
	return element;

	elements.push(element);
	}

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

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

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

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

	escapeHTML: function() {
	var div = document.createElement('div');
	var text = document.createTextNode(this);
	div.appendChild(text);
	return div.innerHTML;
	},

	unescapeHTML: function() {
	var div = document.createElement('div');
	div.innerHTML = this.stripTags();
	return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
	},

	toQueryParams: function() {
	var pairs = this.match(/^\??(.*)$/)[1].split('&');
	return pairs.inject({}, function(params, pairString) {
	var pair = pairString.split('=');
	params[pair[0]] = pair[1];
	return params;
	});
	},

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

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

	var camelizedString = this.indexOf('-') == 0
	? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
	: oStringList[0];

	for (var i = 1, len = oStringList.length; i < len; i++) {
	var s = oStringList[i];
	camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
	}

	return camelizedString;
	},

	inspect: function() {
	return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";
	}
	});

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

	var $break = new Object();
	var $continue = new Object();

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

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

	any: function(iterator) {
	var result = true;
	this.each(function(value, index) {
	if (result = !!(iterator \|\| Prototype.K)(value, index))
	throw $break;
	});
	return result;
	},

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

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

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

	grep: function(pattern, iterator) {
	var results = [];
	this.each(function(value, index) {
	var stringValue = value.toString();
	if (stringValue.match(pattern))
	results.push((iterator \|\| Prototype.K)(value, index));
	})
	return results;
	},

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

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

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

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

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

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

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

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

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

	toArray: function() {
	return this.collect(Prototype.K);
	},

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

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

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

	Object.extend(Enumerable, {
	map: Enumerable.collect,
	find: Enumerable.detect,
	select: Enumerable.findAll,
	member: Enumerable.include,
	entries: Enumerable.toArray
	});
	var $A = Array.from = function(iterable) {
	if (!iterable) return [];
	if (iterable.toArray) {
	return iterable.toArray();
	} else {
	var results = [];
	for (var i = 0; i < iterable.length; i++)
	results.push(iterable[i]);
	return results;
	}
	}

	Object.extend(Array.prototype, Enumerable);

	Array.prototype._reverse = Array.prototype.reverse;

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

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

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

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

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

	flatten: function() {
	return this.inject([], function(array, value) {
	return array.concat(value.constructor == Array ?
	value.flatten() : [value]);
	});
	},

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

	indexOf: function(object) {
	for (var i = 0; i < this.length; i++)
	if (this[i] == object) return i;
	return -1;
	},

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

	shift: function() {
	var result = this[0];
	for (var i = 0; i < this.length - 1; i++)
	this[i] = this[i + 1];
	this.length--;
	return result;
	},

	inspect: function() {
	return '[' + this.map(Object.inspect).join(', ') + ']';
	}
	});
	var Hash = {
	_each: function(iterator) {
	for (key in this) {
	var value = this[key];
	if (typeof value == 'function') continue;

	var pair = [key, value];
	pair.key = key;
	pair.value = value;
	iterator(pair);
	}
	},

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

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

	merge: function(hash) {
	return $H(hash).inject($H(this), function(mergedHash, pair) {
	mergedHash[pair.key] = pair.value;
	return mergedHash;
	});
	},

	toQueryString: function() {
	return this.map(function(pair) {
	return pair.map(encodeURIComponent).join('=');
	}).join('&');
	},

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

	function $H(object) {
	var hash = Object.extend({}, object \|\| {});
	Object.extend(hash, Enumerable);
	Object.extend(hash, Hash);
	return hash;
	}
	ObjectRange = Class.create();
	Object.extend(ObjectRange.prototype, Enumerable);
	Object.extend(ObjectRange.prototype, {
	initialize: function(start, end, exclusive) {
	this.start = start;
	this.end = end;
	this.exclusive = exclusive;
	},

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

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

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

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

	activeRequestCount: 0
	}

	Ajax.Responders = {
	responders: [],

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

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

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

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

	Object.extend(Ajax.Responders, Enumerable);

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

	onComplete: function() {
	Ajax.activeRequestCount--;
	}
	});

	Ajax.Base = function() {};
	Ajax.Base.prototype = {
	setOptions: function(options) {
	this.options = {
	method: 'post',
	asynchronous: true,
	parameters: ''
	}
	Object.extend(this.options, options \|\| {});
	},

	responseIsSuccess: function() {
	return this.transport.status == undefined
	\|\| this.transport.status == 0
	\|\| (this.transport.status >= 200 && this.transport.status < 300);
	},

	responseIsFailure: function() {
	return !this.responseIsSuccess();
	}
	}

	Ajax.Request = Class.create();
	Ajax.Request.Events =
	['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

	Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
	initialize: function(url, options) {
	this.transport = Ajax.getTransport();
	this.setOptions(options);
	this.request(url);
	},

	request: function(url) {
	var parameters = this.options.parameters \|\| '';
	if (parameters.length > 0) parameters += '&_=';

	try {
	this.url = url;
	if (this.options.method == 'get' && parameters.length > 0)
	this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;

	Ajax.Responders.dispatch('onCreate', this, this.transport);

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

	if (this.options.asynchronous) {
	this.transport.onreadystatechange = this.onStateChange.bind(this);
	setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
	}

	this.setRequestHeaders();

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

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

	setRequestHeaders: function() {
	var requestHeaders =
	['X-Requested-With', 'XMLHttpRequest',
	'X-Prototype-Version', Prototype.Version];

	if (this.options.method == 'post') {
	requestHeaders.push('Content-type',
	'application/x-www-form-urlencoded');

	/* Force "Connection: close" for Mozilla browsers to work around
	* a bug where XMLHttpReqeuest sends an incorrect Content-length
	* header. See Mozilla Bugzilla #246651.
	*/
	if (this.transport.overrideMimeType)
	requestHeaders.push('Connection', 'close');
	}

	if (this.options.requestHeaders)
	requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);

	for (var i = 0; i < requestHeaders.length; i += 2)
	this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
	},

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

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

	evalJSON: function() {
	try {
	return eval(this.header('X-JSON'));
	} catch (e) {}
	},

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

	respondToReadyState: function(readyState) {
	var event = Ajax.Request.Events[readyState];
	var transport = this.transport, json = this.evalJSON();

	if (event == 'Complete') {
	try {
	(this.options['on' + this.transport.status]
	\|\| this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
	\|\| Prototype.emptyFunction)(transport, json);
	} catch (e) {
	this.dispatchException(e);
	}

	if ((this.header('Content-type') \|\| '').match(/^text\/javascript/i))
	this.evalResponse();
	}

	try {
	(this.options['on' + event] \|\| Prototype.emptyFunction)(transport, json);
	Ajax.Responders.dispatch('on' + event, this, transport, json);
	} catch (e) {
	this.dispatchException(e);
	}

	/* Avoid memory leak in MSIE: clean up the oncomplete event handler */
	if (event == 'Complete')
	this.transport.onreadystatechange = Prototype.emptyFunction;
	},

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

	Ajax.Updater = Class.create();

	Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
	initialize: function(container, url, options) {
	this.containers = {
	success: container.success ? $(container.success) : $(container),
	failure: container.failure ? $(container.failure) :
	(container.success ? null : $(container))
	}

	this.transport = Ajax.getTransport();
	this.setOptions(options);

	var onComplete = this.options.onComplete \|\| Prototype.emptyFunction;
	this.options.onComplete = (function(transport, object) {
	this.updateContent();
	onComplete(transport, object);
	}).bind(this);

	this.request(url);
	},

	updateContent: function() {
	var receiver = this.responseIsSuccess() ?
	this.containers.success : this.containers.failure;
	var response = this.transport.responseText;

	if (!this.options.evalScripts)
	response = response.stripScripts();

	if (receiver) {
	if (this.options.insertion) {
	new this.options.insertion(receiver, response);
	} else {
	Element.update(receiver, response);
	}
	}

	if (this.responseIsSuccess()) {
	if (this.onComplete)
	setTimeout(this.onComplete.bind(this), 10);
	}
	}
	});

	Ajax.PeriodicalUpdater = Class.create();
	Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
	initialize: function(container, url, options) {
	this.setOptions(options);
	this.onComplete = this.options.onComplete;

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

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

	this.start();
	},

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

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

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

	this.lastText = request.responseText;
	}
	this.timer = setTimeout(this.onTimerEvent.bind(this),
	this.decay * this.frequency * 1000);
	},

	onTimerEvent: function() {
	this.updater = new Ajax.Updater(this.container, this.url, this.options);
	}
	});
	document.getElementsByClassName = function(className, parentElement) {
	var children = ($(parentElement) \|\| document.body).getElementsByTagName('*');
	return $A(children).inject([], function(elements, child) {
	if (child.className.match(new RegExp("(^\|\\s)" + className + "(\\s\|$)")))
	elements.push(child);
	return elements;
	});
	}

	/--------------------------------------------------------------------------/

	if (!window.Element) {
	var Element = new Object();
	}

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

	toggle: function() {
	for (var i = 0; i < arguments.length; i++) {
	var element = $(arguments[i]);
	Element[Element.visible(element) ? 'hide' : 'show'](element);
	}
	},

	hide: function() {
	for (var i = 0; i < arguments.length; i++) {
	var element = $(arguments[i]);
	element.style.display = 'none';
	}
	},

	show: function() {
	for (var i = 0; i < arguments.length; i++) {
	var element = $(arguments[i]);
	element.style.display = '';
	}
	},

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

	update: function(element, html) {
	$(element).innerHTML = html.stripScripts();
	setTimeout(function() {html.evalScripts()}, 10);
	},

	getHeight: function(element) {
	element = $(element);
	return element.offsetHeight;
	},

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

	hasClassName: function(element, className) {
	if (!(element = $(element))) return;
	return Element.classNames(element).include(className);
	},

	addClassName: function(element, className) {
	if (!(element = $(element))) return;
	return Element.classNames(element).add(className);
	},

	removeClassName: function(element, className) {
	if (!(element = $(element))) return;
	return Element.classNames(element).remove(className);
	},

	// removes whitespace-only text node children
	cleanWhitespace: function(element) {
	element = $(element);
	for (var i = 0; i < element.childNodes.length; i++) {
	var node = element.childNodes[i];
	if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
	Element.remove(node);
	}
	},

	empty: function(element) {
	return $(element).innerHTML.match(/^\s*$/);
	},

	scrollTo: function(element) {
	element = $(element);
	var x = element.x ? element.x : element.offsetLeft,
	y = element.y ? element.y : element.offsetTop;
	window.scrollTo(x, y);
	},

	getStyle: function(element, style) {
	element = $(element);
	var value = element.style[style.camelize()];
	if (!value) {
	if (document.defaultView && document.defaultView.getComputedStyle) {
	var css = document.defaultView.getComputedStyle(element, null);
	value = css ? css.getPropertyValue(style) : null;
	} else if (element.currentStyle) {
	value = element.currentStyle[style.camelize()];
	}
	}

	if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
	if (Element.getStyle(element, 'position') == 'static') value = 'auto';

	return value == 'auto' ? null : value;
	},

	setStyle: function(element, style) {
	element = $(element);
	for (name in style)
	element.style[name.camelize()] = style[name];
	},

	getDimensions: function(element) {
	element = $(element);
	if (Element.getStyle(element, 'display') != 'none')
	return {width: element.offsetWidth, height: element.offsetHeight};

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

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

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

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

	undoClipping: function(element) {
	element = $(element);
	if (element._overflow) return;
	element.style.overflow = element._overflow;
	element._overflow = undefined;
	}
	});

	var Toggle = new Object();
	Toggle.display = Element.toggle;

	/--------------------------------------------------------------------------/

	Abstract.Insertion = function(adjacency) {
	this.adjacency = adjacency;
	}

	Abstract.Insertion.prototype = {
	initialize: function(element, content) {
	this.element = $(element);
	this.content = content.stripScripts();

	if (this.adjacency && this.element.insertAdjacentHTML) {
	try {
	this.element.insertAdjacentHTML(this.adjacency, this.content);
	} catch (e) {
	if (this.element.tagName.toLowerCase() == 'tbody') {
	this.insertContent(this.contentFromAnonymousTable());
	} else {
	throw e;
	}
	}
	} else {
	this.range = this.element.ownerDocument.createRange();
	if (this.initializeRange) this.initializeRange();
	this.insertContent([this.range.createContextualFragment(this.content)]);
	}

	setTimeout(function() {content.evalScripts()}, 10);
	},

	contentFromAnonymousTable: function() {
	var div = document.createElement('div');
	div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
	return $A(div.childNodes[0].childNodes[0].childNodes);
	}
	}

	var Insertion = new Object();

	Insertion.Before = Class.create();
	Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
	initializeRange: function() {
	this.range.setStartBefore(this.element);
	},

	insertContent: function(fragments) {
	fragments.each((function(fragment) {
	this.element.parentNode.insertBefore(fragment, this.element);
	}).bind(this));
	}
	});

	Insertion.Top = Class.create();
	Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
	initializeRange: function() {
	this.range.selectNodeContents(this.element);
	this.range.collapse(true);
	},

	insertContent: function(fragments) {
	fragments.reverse(false).each((function(fragment) {
	this.element.insertBefore(fragment, this.element.firstChild);
	}).bind(this));
	}
	});

	Insertion.Bottom = Class.create();
	Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
	initializeRange: function() {
	this.range.selectNodeContents(this.element);
	this.range.collapse(this.element);
	},

	insertContent: function(fragments) {
	fragments.each((function(fragment) {
	this.element.appendChild(fragment);
	}).bind(this));
	}
	});

	Insertion.After = Class.create();
	Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
	initializeRange: function() {
	this.range.setStartAfter(this.element);
	},

	insertContent: function(fragments) {
	fragments.each((function(fragment) {
	this.element.parentNode.insertBefore(fragment,
	this.element.nextSibling);
	}).bind(this));
	}
	});

	/--------------------------------------------------------------------------/

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

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

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

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

	remove: function(classNameToRemove) {
	if (!this.include(classNameToRemove)) return;
	this.set(this.select(function(className) {
	return className != classNameToRemove;
	}).join(' '));
	},

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

	Object.extend(Element.ClassNames.prototype, Enumerable);
	var Field = {
	clear: function() {
	for (var i = 0; i < arguments.length; i++)
	$(arguments[i]).value = '';
	},

	focus: function(element) {
	$(element).focus();
	},

	present: function() {
	for (var i = 0; i < arguments.length; i++)
	if ($(arguments[i]).value == '') return false;
	return true;
	},

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

	activate: function(element) {
	element = $(element);
	element.focus();
	if (element.select)
	element.select();
	}
	}

	/--------------------------------------------------------------------------/

	var Form = {
	serialize: function(form) {
	var elements = Form.getElements($(form));
	var queryComponents = new Array();

	for (var i = 0; i < elements.length; i++) {
	var queryComponent = Form.Element.serialize(elements[i]);
	if (queryComponent)
	queryComponents.push(queryComponent);
	}

	return queryComponents.join('&');
	},

	getElements: function(form) {
	form = $(form);
	var elements = new Array();

	for (tagName in Form.Element.Serializers) {
	var tagElements = form.getElementsByTagName(tagName);
	for (var j = 0; j < tagElements.length; j++)
	elements.push(tagElements[j]);
	}
	return elements;
	},

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

	if (!typeName && !name)
	return inputs;

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

	return matchingInputs;
	},

	disable: function(form) {
	var elements = Form.getElements(form);
	for (var i = 0; i < elements.length; i++) {
	var element = elements[i];
	element.blur();
	element.disabled = 'true';
	}
	},

	enable: function(form) {
	var elements = Form.getElements(form);
	for (var i = 0; i < elements.length; i++) {
	var element = elements[i];
	element.disabled = '';
	}
	},

	findFirstElement: function(form) {
	return Form.getElements(form).find(function(element) {
	return element.type != 'hidden' && !element.disabled &&
	['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
	});
	},

	focusFirstElement: function(form) {
	Field.activate(Form.findFirstElement(form));
	},

	reset: function(form) {
	$(form).reset();
	}
	}

	Form.Element = {
	serialize: function(element) {
	element = $(element);
	var method = element.tagName.toLowerCase();
	var parameter = Form.Element.Serializers[method](element);

	if (parameter) {
	var key = encodeURIComponent(parameter[0]);
	if (key.length == 0) return;

	if (parameter[1].constructor != Array)
	parameter[1] = [parameter[1]];

	return parameter[1].map(function(value) {
	return key + '=' + encodeURIComponent(value);
	}).join('&');
	}
	},

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

	if (parameter)
	return parameter[1];
	}
	}

	Form.Element.Serializers = {
	input: function(element) {
	switch (element.type.toLowerCase()) {
	case 'submit':
	case 'hidden':
	case 'password':
	case 'text':
	return Form.Element.Serializers.textarea(element);
	case 'checkbox':
	case 'radio':
	return Form.Element.Serializers.inputSelector(element);
	}
	return false;
	},

	inputSelector: function(element) {
	if (element.checked)
	return [element.name, element.value];
	},

	textarea: function(element) {
	return [element.name, element.value];
	},

	select: function(element) {
	return Form.Element.Serializers[element.type == 'select-one' ?
	'selectOne' : 'selectMany'](element);
	},

	selectOne: function(element) {
	var value = '', opt, index = element.selectedIndex;
	if (index >= 0) {
	opt = element.options[index];
	value = opt.value;
	if (!value && !('value' in opt))
	value = opt.text;
	}
	return [element.name, value];
	},

	selectMany: function(element) {
	var value = new Array();
	for (var i = 0; i < element.length; i++) {
	var opt = element.options[i];
	if (opt.selected) {
	var optValue = opt.value;
	if (!optValue && !('value' in opt))
	optValue = opt.text;
	value.push(optValue);
	}
	}
	return [element.name, value];
	}
	}

	/--------------------------------------------------------------------------/

	var $F = Form.Element.getValue;

	/--------------------------------------------------------------------------/

	Abstract.TimedObserver = function() {}
	Abstract.TimedObserver.prototype = {
	initialize: function(element, frequency, callback) {
	this.frequency = frequency;
	this.element = $(element);
	this.callback = callback;

	this.lastValue = this.getValue();
	this.registerCallback();
	},

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

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

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

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

	/--------------------------------------------------------------------------/

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

	this.lastValue = this.getValue();
	if (this.element.tagName.toLowerCase() == 'form')
	this.registerFormCallbacks();
	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() {
	var elements = Form.getElements(this.element);
	for (var i = 0; i < elements.length; i++)
	this.registerCallback(elements[i]);
	},

	registerCallback: function(element) {
	if (element.type) {
	switch (element.type.toLowerCase()) {
	case 'checkbox':
	case 'radio':
	Event.observe(element, 'click', this.onElementEvent.bind(this));
	break;
	case 'password':
	case 'text':
	case 'textarea':
	case 'select-one':
	case 'select-multiple':
	Event.observe(element, 'change', this.onElementEvent.bind(this));
	break;
	}
	}
	}
	}

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

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

	Object.extend(Event, {
	KEY_BACKSPACE: 8,
	KEY_TAB: 9,
	KEY_RETURN: 13,
	KEY_ESC: 27,
	KEY_LEFT: 37,
	KEY_UP: 38,
	KEY_RIGHT: 39,
	KEY_DOWN: 40,
	KEY_DELETE: 46,

	element: function(event) {
	return event.target \|\| event.srcElement;
	},

	isLeftClick: function(event) {
	return (((event.which) && (event.which == 1)) \|\|
	((event.button) && (event.button == 1)));
	},

	pointerX: function(event) {
	return event.pageX \|\| (event.clientX +
	(document.documentElement.scrollLeft \|\| document.body.scrollLeft));
	},

	pointerY: function(event) {
	return event.pageY \|\| (event.clientY +
	(document.documentElement.scrollTop \|\| document.body.scrollTop));
	},

	stop: function(event) {
	if (event.preventDefault) {
	event.preventDefault();
	event.stopPropagation();
	} else {
	event.returnValue = false;
	event.cancelBubble = true;
	}
	},

	// find the first node with the given tagName, starting from the
	// node the event was triggered on; traverses the DOM upwards
	findElement: function(event, tagName) {
	var element = Event.element(event);
	while (element.parentNode && (!element.tagName \|\|
	(element.tagName.toUpperCase() != tagName.toUpperCase())))
	element = element.parentNode;
	return element;
	},

	observers: false,

	_observeAndCache: function(element, name, observer, useCapture) {
	if (!this.observers) this.observers = [];
	if (element.addEventListener) {
	this.observers.push([element, name, observer, useCapture]);
	element.addEventListener(name, observer, useCapture);
	} else if (element.attachEvent) {
	this.observers.push([element, name, observer, useCapture]);
	element.attachEvent('on' + name, observer);
	}
	},

	unloadCache: function() {
	if (!Event.observers) return;
	for (var i = 0; i < Event.observers.length; i++) {
	Event.stopObserving.apply(this, Event.observers[i]);
	Event.observers[i][0] = null;
	}
	Event.observers = false;
	},

	observe: function(element, name, observer, useCapture) {
	var element = $(element);
	useCapture = useCapture \|\| false;

	if (name == 'keypress' &&
	(navigator.appVersion.match(/Konqueror\|Safari\|KHTML/)
	\|\| element.attachEvent))
	name = 'keydown';

	this._observeAndCache(element, name, observer, useCapture);
	},

	stopObserving: function(element, name, observer, useCapture) {
	var element = $(element);
	useCapture = useCapture \|\| false;

	if (name == 'keypress' &&
	(navigator.appVersion.match(/Konqueror\|Safari\|KHTML/)
	\|\| element.detachEvent))
	name = 'keydown';

	if (element.removeEventListener) {
	element.removeEventListener(name, observer, useCapture);
	} else if (element.detachEvent) {
	element.detachEvent('on' + name, observer);
	}
	}
	});

	/* prevent memory leaks in IE */
	Event.observe(window, 'unload', Event.unloadCache, false);
	var Position = {
	// set to true if needed, warning: firefox performance problems
	// NOT neeeded for page scrolling, only if draggable contained in
	// scrollable elements
	includeScrollOffsets: false,

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

	realOffset: function(element) {
	var valueT = 0, valueL = 0;
	do {
	valueT += element.scrollTop \|\| 0;
	valueL += element.scrollLeft \|\| 0;
	element = element.parentNode;
	} while (element);
	return [valueL, valueT];
	},

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

	positionedOffset: function(element) {
	var valueT = 0, valueL = 0;
	do {
	valueT += element.offsetTop \|\| 0;
	valueL += element.offsetLeft \|\| 0;
	element = element.offsetParent;
	if (element) {
	p = Element.getStyle(element, 'position');
	if (p == 'relative' \|\| p == 'absolute') break;
	}
	} while (element);
	return [valueL, valueT];
	},

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

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

	return document.body;
	},

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

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

	withinIncludingScrolloffsets: function(element, x, y) {
	var offsetcache = this.realOffset(element);

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

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

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

	clone: function(source, target) {
	source = $(source);
	target = $(target);
	target.style.position = 'absolute';
	var offsets = this.cumulativeOffset(source);
	target.style.top = offsets[1] + 'px';
	target.style.left = offsets[0] + 'px';
	target.style.width = source.offsetWidth + 'px';
	target.style.height = source.offsetHeight + 'px';
	},

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

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

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

	} while (element = element.offsetParent);

	element = forElement;
	do {
	valueT -= element.scrollTop \|\| 0;
	valueL -= element.scrollLeft \|\| 0;
	} while (element = element.parentNode);

	return [valueL, valueT];
	},

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

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

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

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

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

	absolutize: function(element) {
	element = $(element);
	if (element.style.position == 'absolute') return;
	Position.prepare();

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

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

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

	relativize: function(element) {
	element = $(element);
	if (element.style.position == 'relative') return;
	Position.prepare();

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

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

	// Safari returns margins on body which is incorrect if the child is absolutely
	// positioned. For performance reasons, redefine Position.cumulativeOffset for
	// KHTML/WebKit only.
	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];
	}
	}

prototype.jsNo OneTemporaryActions

File Metadata

prototype.jsView Options

Event Timeline

prototype.js
No OneTemporary
Actions

prototype.js
View Options