/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
/*
 * Wicket Ajax Support 
 *
 * @author Igor Vaynberg
 * @author Matej Knopp 
 */

if (Function.prototype.bind == null) {
	Function.prototype.bind = function(object) {
		var __method = this;
		return function() {
			return __method.apply(object, arguments);
		}
	}
}

// Wicket Namespace

if (typeof(Wicket) == "undefined")
	Wicket = { };



/**
 * Browser types
 */
if (typeof(Wicket.Browser) == "undefined") {
	Wicket.Browser = { 
		isKHTML: function() {
			return /Konqueror|KHTML/.test(navigator.userAgent) && !/Apple/.test(navigator.userAgent);
		},
		
		isSafari: function() {
			return /KHTML/.test(navigator.userAgent) && /Apple/.test(navigator.userAgent);
		},
		
		isOpera: function() {
			return !Wicket.Browser.isSafari() && typeof(window.opera) != "undefined";
		},
	
		isIE: function() {
			return !Wicket.Browser.isSafari() && typeof(document.all) != "undefined" && typeof(window.opera) == "undefined";
		},
		
		isIEQuirks: function() {
			// is the browser internet explorer in quirks mode (we could use document.compatMode too)		
			return Wicket.Browser.isIE() && document.documentElement.clientHeight == 0;
		},		
		
		isIELessThan7: function() {
			var index = navigator.userAgent.indexOf("MSIE");
			var version = parseFloat(navigator.userAgent.substring(index + 5));
			return Wicket.Browser.isIE() && version < 7;
		},
		
		isIE7: function() {
			var index = navigator.userAgent.indexOf("MSIE");
			var version = parseFloat(navigator.userAgent.substring(index + 5));
			return Wicket.Browser.isIE() && version >= 7;
		},
		
		isGecko: function() {
			return /Gecko/.test(navigator.userAgent) && !Wicket.Browser.isSafari();
		}
	};
}




/**
 * Events related code
 * Based on code from Mootools (http://mootools.net)
 */

if (typeof(Wicket.Event) == "undefined") {
	Wicket.Event = {
		idCounter: 0,
		
		getId: function(element) {
			var current = element.getAttribute("id");
			if (typeof(current) == "string" && current.length > 0) {
				return current;
			} else {
				current = "wicket-generated-id-" + Wicket.Event.idCounter++;
				element.setAttribute("id", current);
				return current;
			}
		},
		
		handler: function() {
			var id = this[0];
			var original = this[1];
			var element = Wicket.$(id);
			original.bind(element)();
		},
	
		fire: function(element, event) {
			if (document.createEvent) {
				var e=document.createEvent("Event");
				e.initEvent(event, true, true);
				return element.dispatchEvent(e);
			} else {
				return element.fireEvent("on"+event);
			}
		},
		
		// adds an event of specified type to the element
		// also supports the domready event on window
		// domready is event fired when the DOM is complete, but before loading external resources (images, ...)
		add: function(element, type, fn) {
			// is the event domready?
			if (element == window && type == "domready") {
				Wicket.Event.addDomReadyEvent(fn);
			} else {
				if (element.addEventListener){
					element.addEventListener((type == 'mousewheel' && Wicket.Browser.isGecko()) ? 'DOMMouseScroll' : type, fn, false);
				} else {
					if (element == window || element == document)   {
						fn = fn.bind(element);
					}
					else {
						fn = Wicket.Event.handler.bind([Wicket.Event.getId(element), fn]);					
					}				
					// Because of the fn.bind (returning a new function object)
					// you can't detach the event first to be sure that there are no doubles :(
					//element.detachEvent('on'+type, fn);
					element.attachEvent('on'+type, fn);
				}
			}
			return element;
		},
		
		// handlers that will be fired on dom ready event
		domReadyHandlers : new Array(),
		
		// fires the dom ready event and cleanup the handlers
		fireDomReadyHandlers : function() {
			var h = Wicket.Event.domReadyHandlers;
			while (h.length > 0) {
				var c = h.shift();
				c();
			}
			Wicket.Event.domReadyHandlers = null;
		},
		
		// adds the dom ready event 
		addDomReadyEvent : function(fn) {
			// is the window already loaded?
			if (window.loaded)  {
				fn();
			} else if (!window.events || !window.events.domready) {
				// register the handler
				Wicket.Event.domReadyHandlers.push(fn);
			
				// callback
				var domReady = function() {
					if (window.loaded) 
						return;
					window.loaded = true;
					
					// invoke the handlers
					Wicket.Event.fireDomReadyHandlers();
				}.bind(this);
				
				if (document.readyState && (Wicket.Browser.isKHTML() || Wicket.Browser.isSafari())) { 
				  //safari and konqueror don't support the event - simulate it through a timeout
					var domCheck = function() {
						if (document.readyState == "loaded" ||
						    document.readyState == "complete") {
						    domReady();
						} else {
							// dom not yet ready, set timer to check later
							window.setTimeout(domCheck, 10);
						}
					}
					window.setTimeout(domCheck, 10);
				} else if (document.readyState && Wicket.Browser.isIE()) { 
					if (document.getElementById('ie_ready') == null) {
						// for internet explorer we need to load a "dummy" scrip from ::/ to get the 
						// readystatechangeevernt - that means the main page being loaded and now the browser
						// is loading dependencies
						var src = (window.location.protocol == 'https:') ? '\/\/:' : 'javascript:void(0)';
						document.write('<script id="ie_ready" defer src="' + src + '"><\/script>');
						document.getElementById('ie_ready').onreadystatechange = function() {
							if (this.readyState == 'complete') domReady();
						};
					}
				} else { 
					// other browsers
					Wicket.Event.add(document, "DOMContentLoaded", domReady);
				}
			} else {
				window.addEventListener("domready", fn, false);
			}
		}
	};
}

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
/*
 * Wicket Ajax Support 
 *
 * @author Igor Vaynberg
 * @author Matej Knopp 
 */

if (Function.prototype.bind == null) {
	Function.prototype.bind = function(object) {
		var __method = this;
		return function() {
			return __method.apply(object, arguments);
		}
	}
}

// Wicket Namespace

if (typeof(Wicket) == "undefined")
	Wicket = { };


Wicket.$ = function(arg) {
	if (arg == null || typeof(arg) == "undefined") {
		return null;
	}
	if (arguments.length > 1) {
		var e=[];
		for (var i=0; i<arguments.length; i++) {
			e.push(Wicket.$(arguments[i]));
		}
		return e;
	} else if (typeof arg == 'string') {
		return document.getElementById(arg);
	} else {
		return arg;
	}
}

// returns if the element belongs to current document
// if the argument is not element, function returns true
Wicket.$$ = function(element) {	
	if (typeof(element) == "string") {		
		element = Wicket.$(element);
	}	
	if (element == null || typeof(element) == "undefined" ||
	    element.tagName == null || typeof(element.tagName) == "undefined") {
	    return true;
	}
	
	var id = element.getAttribute('id');
	if (typeof(id) == "undefined" || id == null || id == "")
		return element.ownerDocument == document;
	else
		return document.getElementById(id) == element;
}

Wicket.isPortlet = function() {
	return Wicket.portlet == true;
}

Wicket.emptyFunction = function() { };

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

/**
 * Add a check for old Safari. It should not be our responsibility to check the 
 * browser's version, but it's a minor version that makes a difference here,
 * so we try to be at least user friendly.  
 */
if (typeof DOMParser == "undefined" && Wicket.Browser.isSafari()) {
   DOMParser = function () {}

   DOMParser.prototype.parseFromString = function (str, contentType) {
   		alert('You are using an old version of Safari.\nTo be able to use this page you need at least version 2.0.1.');
   }
}


/**
 * Logging functionality. 
 */

Wicket.Log = { 

	enabled: function() {
		return wicketAjaxDebugEnabled();
	},
	
	info: function(msg) {
	    if (Wicket.Log.enabled())
			WicketAjaxDebug.logInfo(msg);
	},
	
	error: function(msg) {
		if (Wicket.Log.enabled())
			WicketAjaxDebug.logError(msg);
	},  

	log: function(msg) {
		if(Wicket.Log.enabled())
			WicketAjaxDebug.log(msg);
	}
},

/**
 * Functions executer takes array of functions and executes them. Each function gets
 * the notify object, which needs to be called for the next function to be executed.
 * This way the functions can be executed synchronously. Each function has to call
 * the notify object at some point, otherwise the functions after it wont be executed.
 * After the FunctionExecuter is initiatialized, the start methods triggers the
 * first function.
 */
Wicket.FunctionsExecuter = Wicket.Class.create();

Wicket.FunctionsExecuter.prototype = {
	initialize: function(functions) {
		this.functions = functions;
		this.current = 0;
		this.depth = 0; // we need to limit call stack depth
	},
	
	processNext: function() {
		if (this.current < this.functions.length) {
			var f = this.functions[this.current];
			var run = function() {
				f(this.notify.bind(this));
			}.bind(this);
			this.current++;
						
			if (this.depth > 50 || Wicket.Browser.isKHTML() || Wicket.Browser.isSafari()) {
				// to prevent khtml bug that crashes entire browser
				// or to prevent stack overflow (safari has small call stack)
				this.depth = 0;
				window.setTimeout(run, 1);
			} else {
				this.depth ++;
				run();
			}				
		}
	},	
	
	start: function() {
		this.processNext();
	},
	
	notify: function() {
		this.processNext();
	}
}

Wicket.replaceOuterHtmlIE = function(element, text) {						

	// replaces all <iframe references with <__WICKET_JS_REMOVE_X9F4A__iframe text
	var marker = "__WICKET_JS_REMOVE_X9F4A__"; 					
	function markIframe(text) {
		var t = text;
		var r = /<\s*iframe/i;
		while ((m = t.match(r)) != null) {			
			t = Wicket.replaceAll(t, m[0], "<" + marker + m[0].substring(1));            
		}
        return t;
	}
	
	function removeIframeMark(text) {
		return Wicket.replaceAll(text, marker, "");
	}
							
	if (element.tagName == "SCRIPT") {
		// we need to get the javascript content, so we create an invalid DOM structure,
		// (that is necessary for IE to let us see the innerHTML of the script tag	
		var tempDiv = document.createElement("div");
		tempDiv.innerHTML = "<table>" + text + "</table>";		
		var script = tempDiv.childNodes[0].childNodes[0].innerHTML;
		
		element.outerHtml = text;
		try {
			eval(script);
		} catch (e) {
			Wicket.Log.error("Wicket.replaceOuterHtmlIE: " + e + ": eval -> " + script);
		}
		return;
	}  
	
	var parent = element.parentNode;
	var tn = element.tagName;
				
					
	var tempDiv = document.createElement("div");
	var tempParent;
	
	// array for javascripts that were in the text
	var scripts = new Array();				
	
	if (window.parent == window || window.parent == null) {
		document.body.appendChild(tempDiv);
	}
		
	if (tn != 'TBODY' && tn != 'TR' && tn != "TD" && tn != "THEAD" && tn != "TFOOT" && tn != "TH") {
		
		// in case the element is not any of these																									
						
		// this is not exactly nice, but we need to get invalid markup inside innerHTML,
		// because otherwise IE just swallows the <script> tags (sometimes)		
		tempDiv.innerHTML = '<table style="display:none">' + markIframe(text) + '</table>';
						
		// now copy the script tags to array (needed later for script execution)
		var s = tempDiv.getElementsByTagName("script");				
						
		for (var i = 0; i < s.length; ++i) {			
			scripts.push(s[i]);
		}						
						
		// now use regular div so that we won't mess the DOM
		tempDiv.innerHTML = '<div style="display:none">' + text + '</div>'; 

		// set the outer <div> as parent
		tempParent = tempDiv.childNodes[0];
		
		tempParent.parentNode.removeChild(tempParent);								
						
	} else {
	
		// same trick as with before, this time we need a div to to create invalid markup
		// (otherwise we wouldn't be able to get the script tags)
		tempDiv.innerHTML = '<div style="display:none">' + markIframe(text) + '</div>';
	
		// now copy the script tags to array (needed later for script execution)
		var s = tempDiv.getElementsByTagName("script");
						
		for (var i = 0; i < s.length; ++i) {
			scripts.push(s[i]);
		}		
		
		// hack to get around the fact that IE doesn't allow to replace table elements
		tempDiv.innerHTML = '<table style="display: none">' + text + '</table>';
		
		// get the parent element of new elements
		tempParent = tempDiv.getElementsByTagName(tn).item(0).parentNode;					
	}	

	// place all newly created elements before the old element	
	while(tempParent.childNodes.length > 0) {
		var tempElement = tempParent.childNodes[0];
		parent.insertBefore(tempElement, element);
		tempElement = null;
	}

    // remove the original element
	if(element.style.backgroundImage)
		element.style.backgroundImage = "";
	parent.removeChild(element);
	element.outerHTML = "";	
	element = "";
	
	if (window.parent == window || window.parent == null) {
		if(tempDiv.style.backgroundImage)
			tempDiv.style.backgroundImage = "";
		document.body.removeChild(tempDiv);
	}	
	
	tempDiv.outerHTML = "";

	parent = null;
	tempDiv = null;
	tempParent = null;
      		
	for (i = 0; i < scripts.length; ++i) {
		Wicket.Head.addJavascripts(scripts[i], removeIframeMark); 
	}									
}

Wicket.replaceOuterHtmlSafari = function(element, text) {
	// if we are replacing a single <script> element
	if (element.tagName == "SCRIPT") {
		// create temporal div and add script as inner HTML		
		var tempDiv = document.createElement("div");
		tempDiv.innerHTML = text;

		// try to get script content
		var script = tempDiv.childNodes[0].innerHTML;
		if (typeof(script) != "string") {
			script = tempDiv.childNodes[0].text;
		}
		
		element.outerHTML = text;
		try {
			eval(script);
		} catch (e) {
			Wicket.Log.error("Wicket.replaceOuterHtmlSafari: " + e + ": eval -> " + script);
		}
		return;
	}
	var parent = element.parentNode;
	var next = element.nextSibling;
	
	var index = 0;
	while (parent.childNodes[index] != element) {
		++index;
	}
	
	element.outerHTML = text;	
		
	element = parent.childNodes[index];	
	
	// go through newly added elements and try to find javascripts that 
	// need to be executed	
	while (element != next) {
		try {
			Wicket.Head.addJavascripts(element);
		} catch (ignore) {
		}
		element = element.nextSibling;
	}	
}

/**
 * A cross-browser method that replaces the markup of an element. The behavior
 * is similar to calling element.outerHtml=text in internet explorer. However
 * this method also takes care of executing javascripts within the markup on
 * browsers that don't do that automatically.
 * Also this method takes care of replacing table elements (tbody, tr, td, thead)
 * on browser where it's not supported when using outerHTML (IE).
 */
Wicket.replaceOuterHtml = function(element, text) {	

	if (Wicket.Browser.isIE()|| Wicket.Browser.isOpera()) {		
		Wicket.replaceOuterHtmlIE(element, text);				
    } else if (Wicket.Browser.isSafari() ) {
    	Wicket.replaceOuterHtmlSafari(element, text);    	
    } else /* GECKO */ {
    	// create range and fragment
        var range = element.ownerDocument.createRange();
        range.selectNode(element);
		var fragment = range.createContextualFragment(text);
		
        element.parentNode.replaceChild(fragment, element);        
    }		
}	

/**
 * Decoding functionality
 *
 * Wicket sends rendered components and javascript as CDATA section of XML document. When the 
 * component body itself contains a CDATA section, Wicket needs to escape it properly. 
 */
Wicket.decode = function(encoding, text) {
    if (encoding == "wicket1") {
        return Wicket.decode1(text);
    }
}

Wicket.decode1 = function(text) {
    return Wicket.replaceAll(text, "]^", "]");
}

Wicket.replaceAll = function(str, from, to) {
	eval('var regex = /' + from.replace( /\W/g ,'\\$&' ) + '/g ;');
	return str.replace(regex,to);
}

/** shows element */
Wicket.show=function(e) {
    var e=Wicket.$(e);
    if (e!=null) {
	    e.style.display = "";
	}
}
/** hides element */
Wicket.hide=function(e) {
    var e=Wicket.$(e);
    if (e!=null) {
	    e.style.display = "none";
	}
}
/** call-counting implementation of Wicket.show() */
Wicket.showIncrementally=function(e) {
	var e=Wicket.$(e);
	if (e==null) return;
	var count=e.getAttribute("showIncrementallyCount");
	count=parseInt((count==null)?0:count);
	if (count>=0) Wicket.show(e);
	e.setAttribute("showIncrementallyCount", count+1);

}
/** call-counting implementation of Wicket.hide() */
Wicket.hideIncrementally=function(e) {
	var e=Wicket.$(e);
	if (e==null) return;
	var count=e.getAttribute("showIncrementallyCount");
	count=parseInt((count==null)?0:count-1);
	if (count<=0) Wicket.hide(e);
	e.setAttribute("showIncrementallyCount", count);
}


/**
 * Form serialization
 *
 * To post a form using Ajax Wicket first needs to serialize it, which means composing a string
 * from form elments names and values. The string will then be set as body of POST request.
 */

Wicket.Form = { }

Wicket.Form.encode = function(text) {
    if (encodeURIComponent) {
        return encodeURIComponent(text);
    } else {
        return escape(text);
    }
}

Wicket.Form.serializeSelect = function(select){
	// if it is a non-multiple select, iterating on each element is not required (WICKET-389)
	if (select.multiple == false){
		return Wicket.Form.encode(select.name) + "=" + Wicket.Form.encode(select.value) + "&";
	}

    //else
    var result = "";
    for (var i = 0; i < select.options.length; ++i) {
        var option = select.options[i];
        if (option.selected) {
            result += Wicket.Form.encode(select.name) + "=" + Wicket.Form.encode(option.value) + "&";
        }
    }
    return result;
}

// this function intentionally ignores image and submit inputs
Wicket.Form.serializeInput = function(input) {
    var type = input.type.toLowerCase();
    if ((type == "checkbox" || type == "radio") && input.checked) {
        return Wicket.Form.encode(input.name) + "=" + Wicket.Form.encode(input.value) + "&";
    } else if (type == "text" || type == "password" || type == "hidden" || type == "textarea" || type == "search") {
		return Wicket.Form.encode(input.name) + "=" + Wicket.Form.encode(input.value) + "&";
	} else {
		return "";
    }
}

//list of item to exclude from serialization
Wicket.Form.excludeFromAjaxSerialization = {};

// Returns url/post-body fragment representing element (e) 
Wicket.Form.serializeElement = function(e) {

	if (Wicket.Form.excludeFromAjaxSerialization && e.id && Wicket.Form.excludeFromAjaxSerialization[e.id] == "true") {
		return "";
	}

    var tag = e.tagName.toLowerCase();
    if (tag == "select") {
        return Wicket.Form.serializeSelect(e);
    } else if (tag == "input" || tag == "textarea") {
        return Wicket.Form.serializeInput(e);
    } else {
    	return "";
    }
}
   
   
Wicket.Form.doSerialize = function(form) {
    var result = "";
    for (var i = 0; i < form.elements.length; ++i) {
        var e = form.elements[i];
        if (e.name && e.name != "" && !e.disabled) {
            result += Wicket.Form.serializeElement(e);
        }
    }
    return result;
}

Wicket.Form.serialize = function(element, dontTryToFindRootForm) {
	if (element.tagName.toLowerCase() == "form") {		
		return Wicket.Form.doSerialize(element);
	} else {
		// try to find a form in DOM parents
		var elementBck = element;
		
		if (dontTryToFindRootForm != true) {
			do {
				element = element.parentNode;
			} while(element.tagName.toLowerCase() != "form" && element.tagName.toLowerCase() != "body")
		}
		
		if (element.tagName.toLowerCase() == "form"){
			// We found a form : serialize it
			return Wicket.Form.doSerialize(element);
		} else {
			// there is not form in dom hierarchy
			// simulate it  
			var form = document.createElement("form");
			var parent = elementBck.parentNode;

			parent.replaceChild(form, elementBck);
			form.appendChild(elementBck);
			var result = Wicket.Form.doSerialize(form);
			parent.replaceChild(elementBck, form);
			
			return result
		}
	}
}

/**
 * DOM nodes serialization functionality
 *
 * The purpose of these methods is to return a string representation
 * of the DOM tree.
 */
 
Wicket.DOM = { }

// Method for serializing DOM nodes to string
// original taken from Tacos (http://tacoscomponents.jot.com)
Wicket.DOM.serializeNodeChildren = function(node) {
	if (node == null) { 
		return "" 
	}
	var result = "";
	
	for (var i = 0; i < node.childNodes.length; i++) {
		var thisNode = node.childNodes[i];
		switch (thisNode.nodeType) {
			case 1: // ELEMENT_NODE
			case 5: // ENTITY_REFERENCE_NODE
				result += Wicket.DOM.serializeNode(thisNode);
				break;
			case 8: // COMMENT
				result += "<!--" + thisNode.nodeValue + "-->";
				break;
			case 4: // CDATA_SECTION_NODE
				result += "<![CDATA[" + thisNode.nodeValue + "]]>";
				break;				
			case 3: // TEXT_NODE
			case 2: // ATTRIBUTE_NODE
				result += thisNode.nodeValue;
				break;
			default:
				break;
		}
	}
	return result;	
}


Wicket.DOM.serializeNode = function(node){
	if (node == null) { 
		return "" 
	}
	var result = "";
	result += '<' + node.nodeName;
	
	if (node.attributes && node.attributes.length > 0) {
				
		for (var i = 0; i < node.attributes.length; i++) {
			result += " " + node.attributes[i].name 
				+ "=\"" + node.attributes[i].value + "\"";	
		}
	}
	
	result += '>';
	result += Wicket.DOM.serializeNodeChildren(node);
	result += '</' + node.nodeName + '>';
	return result;
}

// Utility function that determines whether given element is part of the current document
Wicket.DOM.containsElement = function(element) {
	var id = element.getAttribute("id");
	if (id != null)
		return Wicket.$(id) != null;
	else
		return false;
}

/**
 * Channel management
 *
 * Wicket Ajax requests are organized in channels. A channel maintain the order of 
 * requests and determines, what should happen when a request is fired while another 
 * one is being processed. The default behavior (stack) puts the all subsequent requests 
 * in a queue, while the drop behavior limits queue size to one, so only the most
 * recent of subsequent requests is executed.
 * The name of channel determines the policy. E.g. channel with name foochannel|s is 
 * a stack channel, while barchannel|d is a drop channel.
 *
 * The Channel class is supposed to be used through the ChannelManager.
 */
Wicket.Channel = Wicket.Class.create();
Wicket.Channel.prototype = {
	initialize: function(name) {
		var res = name.match(/^([^|]+)\|(d|s)$/)
		if (res == null)
			this.type ='s'; // default to stack 
		else
			this.type = res[2];
		this.callbacks = new Array();
		this.busy = false;
	},	
	
	schedule: function(callback) {
		if (this.busy == false) {
			this.busy = true;			
			return callback();
		} else {
			Wicket.Log.info("Channel busy - postponing...");
			if (this.type == 's') // stack 
				this.callbacks.push(callback);
			else /* drop */
				this.callbacks[0] = callback;
			return null;				
		}
	},
	
	done: function() {
		var c = null;
		
		if (this.callbacks.length > 0) {
			c = this.callbacks.shift();
		}
			
		if (c != null && typeof(c) != "undefined") {
			Wicket.Log.info("Calling posponed function...");
			// we can't call the callback from this call-stack
			// therefore we set it on timer event
			window.setTimeout(c, 1);			
		} else {
			this.busy = false;
		}
	}
};

/**
 * Channel manager maintains a map of channels. 
 */
Wicket.ChannelManager = Wicket.Class.create();
Wicket.ChannelManager.prototype = {
	initialize: function() {
		this.channels = new Array();
	},
  
	// Schedules the callback to channel with given name.
	schedule: function(channel, callback) {
		var c = this.channels[channel];
		if (c == null) {
			c = new Wicket.Channel(channel);
			this.channels[channel] = c;
		}
		return c.schedule(callback);
	},
	
	// Tells the ChannelManager that the current callback in channel with given name 
	// has finished processing and another scheduled callback can be executed (if any).
	done: function(channel) {
		var c = this.channels[channel];
		if (c != null)
			c.done();
	}
};

// Default channel manager instance
Wicket.channelManager = new Wicket.ChannelManager();

/**
 * The Ajax class handles low level details of creating and pooling XmlHttpRequest objects,
 * as well as registering and execution of pre-call, post-call and failure handlers.
 */
 Wicket.Ajax = { 
 	// Creates a new instance of a XmlHttpRequest
	createTransport: function() {
	    var transport = null;
	    if (window.ActiveXObject) {
	        transport = new ActiveXObject("Microsoft.XMLHTTP");
	        Wicket.Log.info("Using ActiveX transport");
	    } else if (window.XMLHttpRequest) {
	        transport = new XMLHttpRequest();
	        Wicket.Log.info("Using XMLHttpRequest transport");
	    } 
	    
	    if (transport == null) {
	        Wicket.Log.error("Wicket.Ajax.createTransport: Could not locate ajax transport. Your browser does not support the required XMLHttpRequest object or wicket could not gain access to it.");
	    }    
	    return transport;
	},
	
	transports: [],
	
	// Returns a transport from pool if any of them is not being used, or creates new instance
	getTransport: function() {
		var t = Wicket.Ajax.transports;
		for (var i = 0; i < t.length; ++i) {
			if (t[i].readyState == 0) {
				return t[i];
			}
		}
		t.push(Wicket.Ajax.createTransport());
		return t[t.length-1];		
	},
	
	preCallHandlers: [],
	postCallHandlers: [],	
	failureHandlers: [],
	
	registerPreCallHandler: function(handler) {
		var h = Wicket.Ajax.preCallHandlers;
		h.push(handler);
	},
	
	registerPostCallHandler: function(handler) {
		var h = Wicket.Ajax.postCallHandlers;
		h.push(handler);
	},
	
	registerFailureHandler: function(handler) {
		var h = Wicket.Ajax.failureHandlers;
		h.push(handler);
	},
	
	invokePreCallHandlers: function() {
		var h = Wicket.Ajax.preCallHandlers;
		if (h.length > 0) {
			Wicket.Log.info("Invoking pre-call handler(s)...");
		}
		for (var i = 0; i < h.length; ++i) {
			h[i]();
		}
	},
	
	invokePostCallHandlers: function() {
		var h = Wicket.Ajax.postCallHandlers;
		if (h.length > 0) {
			Wicket.Log.info("Invoking post-call handler(s)...");
		}
		for (var i = 0; i < h.length; ++i) {
			h[i]();
		}
	},

	invokeFailureHandlers: function() {
		var h = Wicket.Ajax.failureHandlers;
		if (h.length > 0) {
			Wicket.Log.info("Invoking failure handler(s)...");
		}
		for (var i = 0; i < h.length; ++i) {
			h[i]();
		}
	}
}

/**
 * The Ajax.Request class encapsulates a XmlHttpRequest. 
 */
Wicket.Ajax.Request = Wicket.Class.create();

Wicket.Ajax.Request.prototype = {
    // Creates a new request object.
	initialize: function(url, loadedCallback, parseResponse, randomURL, failureHandler, channel, successHandler) {
		this.url = url;
		this.loadedCallback = loadedCallback;
		// whether we should give the loadedCallback parsed response (DOM tree) or the raw string
		this.parseResponse = parseResponse != null ? parseResponse : true; 
		this.randomURL = randomURL != null ? randomURL : true;
		this.failureHandler = failureHandler != null ? failureHandler : function() { };
		this.successHandler = successHandler != null ? successHandler : function() { };
		this.async = true;
		this.channel = channel;
		this.precondition = function() { return true; } // allow a condition to block request 

		// when suppressDone is set, the loadedCallback is responsible for calling
		// Ajax.Request.done() to process possibly pendings requests in the channel.
		this.suppressDone = false;
		this.instance = Math.random();
		this.debugContent = true;
	},
	
	done: function() {
		Wicket.channelManager.done(this.channel);
	},
	
	createUrl: function() {
		if (this.randomURL == false)
			return this.url;
		else
			return this.url + (this.url.indexOf("?")>-1 ? "&" : "?") + "random=" + Math.random();
	},
	
	log: function(method, url) {
		var log = Wicket.Log.info;
		log("");
		log("Initiating Ajax "+method+" request on " + url);
	},
	
	failure: function() {
		this.failureHandler();
   		Wicket.Ajax.invokePostCallHandlers();
   		Wicket.Ajax.invokeFailureHandlers();
	},
	
	// Executes a get request
	get: function() {
		if (Wicket.isPortlet()) {
	        // first check if a query string is provided
	        var qs = this.url.indexOf('?');
	        if (qs==-1) {
	            qs = this.url.indexOf('&');
	        }
	        if (qs>-1) {
	            var query = this.url.substring(qs+1);
	            // ensure the query is not empty
	            if (query && query.length > 0) {
	                // cut off query part from original url
	                this.url = this.url.substring(0,qs);
	                // ensure query ends with &
	                if (query.charAt(query.length-1)!='&') {
	                    query += "&";
	                }
	                // post the query string instead to support portlets
	                // for which you cannot modify/append to the url
	                return this.post(query);
	            }
	        }
	    }
		if (this.channel != null) {
			var res = Wicket.channelManager.schedule(this.channel, this.doGet.bind(this));
			return res != null ? res : true;
		} else {
			return this.doGet();
		}
	},
	
	// The actual get request implementation
	doGet: function() {
		if (this.precondition()) {
	
			this.transport = Wicket.Ajax.getTransport();
		
			var url = this.createUrl();
			this.log("GET", url);
			
			Wicket.Ajax.invokePreCallHandlers();
			
			var t = this.transport;
			if (t != null) {
				t.open("GET", url, this.async);
				t.onreadystatechange = this.stateChangeCallback.bind(this);
				// set a special flag to allow server distinguish between ajax and non-ajax requests
				t.setRequestHeader("Wicket-Ajax", "true");
				if (typeof(Wicket.Focus.lastFocusId) != "undefined" && Wicket.Focus.lastFocusId != "" && Wicket.Focus.lastFocusId != null)
				    t.setRequestHeader("Wicket-FocusedElementId", Wicket.Focus.lastFocusId);				
				t.setRequestHeader("Accept", "text/xml");
				t.send(null);
				return true;
			} else {
				this.failure();
	       		return false;
			}
		} else {
			Wicket.Log.info("Ajax GET stopped because of precondition check, url:" + this.url);
			this.done();
			return true;
		}
	},
	
	// Posts the given string
	post: function(body) {
		if (this.channel != null) {
			var res = Wicket.channelManager.schedule(this.channel, function() { this.doPost(body); }.bind(this));
			return res != null ? res: true;
		} else {
			return this.doPost(body);
		}
	},
	
	// The actual post implementation
	doPost: function(body) {
		
		if (this.precondition()) {
			this.transport = Wicket.Ajax.getTransport();	
		
			var url = this.createUrl();			
			
			this.log("POST", url);
			
			Wicket.Ajax.invokePreCallHandlers();
			
			var t = this.transport;
			if (t != null) {
				// we allow body to be a method - to lazily evaluate itself
				if (typeof(body) == "function") {
					body = body();
				}				
				t.open("POST", url, this.async);
				t.onreadystatechange = this.stateChangeCallback.bind(this);
				t.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
				// set a special flag to allow server distinguish between ajax and non-ajax requests
				t.setRequestHeader("Wicket-Ajax", "true");
				if (typeof(Wicket.Focus.lastFocusId) != "undefined" && Wicket.Focus.lastFocusId != "" && Wicket.Focus.lastFocusId != null)
				    t.setRequestHeader("Wicket-FocusedElementId", Wicket.Focus.lastFocusId);				
				t.setRequestHeader("Accept", "text/xml");
				t.send(body);
				return true;
			} else {
	       		this.failure();
	       		return false;
			}
		} else {
			Wicket.Log.info("Ajax POST stopped because of precondition check, url:" + this.url);
			this.done();
			return true;
		}
	},
	
	// Method that processes the request states
	stateChangeCallback: function() {	
		var t = this.transport;
		var status;
		
		if (t != null && t.readyState == 4) {
			try {
				status = t.status;
			}
			catch (e) {
				Wicket.Log.error("Wicket.Ajax.Request.stateChangeCallback: Exception evaluating AJAX status: " + e);
				status = "unavailable";
			}
			if (status == 200 || status == "") { // as stupid as it seems, IE7 sets status to "" on ok
				// response came without error
				var responseAsText = t.responseText;
				
				// first try to get the redirect header
				var redirectUrl;
				try {
					redirectUrl = t.getResponseHeader('Ajax-Location');
				} catch (ignore) { // might happen in older mozilla
				}
				
				// the redirect header was set, go to new url
				if (typeof(redirectUrl) != "undefined" && redirectUrl != null && redirectUrl != "") {
					t.onreadystatechange = Wicket.emptyFunction;
					
					// In case the page isn't really redirected. For example say the redirect is to an octet-stream.
					// A file download popup will appear but the page in the browser won't change.					
					this.done();
					this.successHandler();
					
                    // support/check for non-relative redirectUrl like as provided and needed in a portlet context
					if (redirectUrl.charAt(0)==('/')||redirectUrl.match("^http://")=="http://"||redirectUrl.match("^https://")=="https://") {
					    window.location = redirectUrl;
					}
					else {
					    var urlDepth = 0;
					    while (redirectUrl.substring(0, 3) == "../") {
						    urlDepth++;
						    redirectUrl = redirectUrl.substring(3);
					    }
					    // Make this a string.
					    var calculatedRedirect = window.location.pathname;
					    while (urlDepth > -1) {
						    urlDepth--;
						    i = calculatedRedirect.lastIndexOf("/");
						    if (i > -1) {
							    calculatedRedirect = calculatedRedirect.substring(0, i);
						    }
					    }
					    calculatedRedirect += "/" + redirectUrl;
					    
					    if (Wicket.Browser.isGecko()) {					    
					    	// firefox 3 has problem with window.location setting relative url
					    	calculatedRedirect = window.location.protocol + "//" + window.location.host + calculatedRedirect;					    	
					    }
					    
					    window.location = calculatedRedirect;
					}
				}
				else {
					// no redirect, just regular response
					var log = Wicket.Log.info;				
					log("Received ajax response (" + responseAsText.length + " characters)");
					if (this.debugContent != false) {
						log("\n" + responseAsText);
					}
	        		
	        		// parse the response if the callback needs a DOM tree
	        		if (this.parseResponse == true) {
						var xmldoc;					
						if (typeof(window.XMLHttpRequest) != "undefined" && typeof(DOMParser) != "undefined") {						
							var parser = new DOMParser();
							xmldoc = parser.parseFromString(responseAsText, "text/xml");						
						} else if (window.ActiveXObject) {
							xmldoc = t.responseXML;
						}
						// invoke the loaded callback with an xml document
						this.loadedCallback(xmldoc); 
					} else {
						// invoke the loaded callback with raw string
						this.loadedCallback(responseAsText);
					}        		
					if (this.suppressDone == false)
						this.done();
				}
        	} else {
        		// when an error happened
        		var log = Wicket.Log.error;
        		log("Received Ajax response with code: " + status);
        		if (status == 500) {
					log("500 error had text: " + t.responseText);
				}
		   		this.done();        		
        		this.failure();
        	}    	
        	t.onreadystatechange = Wicket.emptyFunction;
        	t.abort();
        	this.transport = null;       
        }        
	}
};

/**
 * Ajax call fires a Wicket Ajax request and processes the response. 
 * The response can contain 
 *   - javascript that should be invoked
 *   - body of components being replaced
 *   - header contributions of components
 */
Wicket.Ajax.Call = Wicket.Class.create();

Wicket.Ajax.Call.prototype = {
	// Initializes the Call
	initialize: function(url, successHandler, failureHandler, channel) {
		this.successHandler = successHandler != null ? successHandler : function() { };
		this.failureHandler = failureHandler != null ? failureHandler : function() { };

		var c = channel != null ? channel : "0|s"; // set the default channel if not specified
		// initialize the internal Ajax request
		this.request = new Wicket.Ajax.Request(url, this.loadedCallback.bind(this), true, true, failureHandler, c, successHandler);
		this.request.suppressDone = true;
	},
	
	// On ajax request failure
	failure: function(message) {
		if (message != null)
			Wicket.Log.error("Wicket.Ajax.Call.failure: Error while parsing response: " + message);
		this.request.done();
		this.failureHandler();
   		Wicket.Ajax.invokePostCallHandlers();
   		Wicket.Ajax.invokeFailureHandlers();
	},	
	
	// Fires a get request
	call: function() {	
		return this.request.get();
	},
	
	// Fires a post request
	post: function(body) {
		return this.request.post(body);
	},

	// Submits a form using ajax
	submitFormById: function(formId, submitButton) {
		var form = Wicket.$(formId);
		if (form == null || typeof (form) == "undefined")
			Wicket.Log.error("Wicket.Ajax.Call.submitFormById: Trying to submit form with id '"+formId+"' that is not in document.");
		return this.submitForm(form, submitButton);
	},
	
	// Submits a form using ajax.
	// This method serializes a form and sends it as POST body.
	submitForm: function(form, submitButton) {
		if (form.onsubmit) {	
			if (!form.onsubmit()) return;
		}
	    
	    if (this.handleMultipart(form, submitButton)) {
	    	return true;
	    }
	    var body = function() {
	    	var s = Wicket.Form.serialize(form);
	    	if (submitButton != null) {
		        s += Wicket.Form.encode(submitButton) + "=1";
		    }
		    return s;		    
	    }	    
	    return this.request.post(body);
	},


	// If the form contains multipart content this function will post 
	// the form using an iframe instead of the regular ajax call
	// and bridge the output - transparently making this work  as if it was an ajax call
	handleMultipart: function (form, submitButton) {
		
		var multipart=false;
		
		// find root form
		if (form.tagName.toLowerCase() != "form") {
			do {
				// check if any inner forms are multipart
				if (multipart==false&&Wicket!=undefined&&Wicket.Forms!=undefined) {
					var meta=Wicket.Forms[form.id];
					if (meta!=undefined) {
						if (meta["multipart"]!=undefined) {
							multipart=multipart||meta["multipart"];
						}
					}
				}
				form = form.parentNode;
			} while(form.tagName.toLowerCase() != "form" && form.tagName.toLowerCase() != "body")
		}	

		
		if (form.tagName.toLowerCase() != "form") {
			// no form in the hierarchy, cant handle multipart
			return false;
		}
		
		multipart=multipart||form.enctype=="multipart/form-data";
		
		if (multipart==false) {
			// nothing to handle
			return false;
		}
		
		var originalFormAction=form.action;
		var originalFormTarget=form.target;
		var originalFormMethod=form.method;
		var originalFormEnctype=form.enctype;
		var originalFormEncoding=form.encoding;
		
		var iframeName="wicket-submit-"+(""+Math.random()).substr(2);
		
		try {
    		var iframe = document.createElement("<iframe name='"+iframeName+"' id='"+iframeName+"' src='about:blank'/>");
		} catch (ex) {
		    var iframe = document.createElement("iframe");
			iframe.name=iframeName;
			iframe.id=iframe.name;
			iframe.src="about:blank";
		}
		
		iframe.style.display="none";
		iframe.style.visibility="hidden";
		
		document.body.appendChild(iframe);
		
		// reconfigure the form
		form.target=iframe.name;
		form.action=this.request.url + "&wicket:ajax=true";
		form.method="post";
		form.enctype="multipart/form-data";
		form.encoding="multipart/form-data";
		
		// create submitting button element
		if (submitButton!=null) {
			try {
	    		var btn = document.createElement("<input type='hidden' name='"+submitButton+"' id='"+iframe.id+"-btn' value='1'/>");
			} catch (ex) {
			    var btn = document.createElement("input");
			    btn.type="hidden";
				btn.name=submitButton;
				btn.id=iframe.id+"-btn";
				btn.value="1";
			}
			form.appendChild(btn);
		}
		
		// invoke pre call handlers
		Wicket.Ajax.invokePreCallHandlers();
		
		//submit the form into the iframe, response will be handled by the onload callback
		form.submit();

		
		// install handler to deal with the ajax response
		// ... we add the onload event after form submit because chrome fires it prematurely
		Wicket.Event.add(iframe, "load", this.handleMultipartComplete.bind(this));

		// handled, restore state and return true
		form.action=originalFormAction;
		form.target=originalFormTarget;
		form.method=originalFormMethod;
		form.enctype=originalFormEnctype;
		form.encoding=originalFormEncoding;
		
 		return true;
 	},
 
 	// Completes the multipart ajax handling started via handleMultipart()
	handleMultipartComplete: function (event) {
		if (event==null) { event=window.event; }
		if (event.target!=null) {
			var iframe=event.target;
		} else {
			var iframe=event.srcElement
		};

		var envelope=iframe.contentWindow.document;
		if (envelope.XMLDocument!=null) { envelope=envelope.XMLDocument; }
	
		// process the response
		this.loadedCallback(envelope);

		// stop the event
		if (event.stopPropagation) { event.stopPropagation(); } else { event.cancelBubble=true; }

		// remove the event
		if (iframe.detachEvent)  
			iframe.detachEvent("onload", this.handleMultipartComplete);  
		else  
			iframe.removeEventListener("load", this.handleMultipartComplete, false);
		
		// remove the iframe and button elements
		setTimeout(function() {
			var e=document.getElementById(iframe.id+"-btn");
			if (e!=null) {
				e.parentNode.removeChild(e);
			}
			iframe.parentNode.removeChild(iframe);
		}, 250);
	},
	
	// Processes the response
	loadedCallback: function(envelope) {
		// To process the response, we go through the xml document and add a function for every action (step).
		// After this is done, a FunctionExecuter object asynchronously executes these functions.
		// The asynchronous execution is necessary, because some steps might involve loading external javascript,
		// which must be asynchronous, so that it doesn't block the browser, but we also have to maintain
		// the order in which scripts are loaded and we have to delay the next steps until the script is
		// loaded.
		try {			
			var root = envelope.getElementsByTagName("ajax-response")[0];
					
			// the root element must be <ajax-response	
		    if (root == null || root.tagName != "ajax-response") {
		    	this.failure("Could not find root <ajax-response> element");
		    	return;
		    }
						
			// iinitialize the array for steps (closures that execute each action)
		    var steps = new Array();

		   	// start it a bit later so that the browser does handle the next event 
		   // before the component is or can be replaced. We could do (if (!posponed))
		   // because if there is already something in the queue then we could execute that immedietly 
			steps.push(function(notify) {
			   window.setTimeout(notify,2);
			}.bind(this));
			
		    if (Wicket.Browser.isKHTML()) {
		    	// there's a nasty bug in KHTML that makes the browser crash
		    	// when the methods are delayed. Therefore we have to fire it
		    	// ASAP. The javascripts that would cause dependency problems are
		    	// loaded synchronously in konqueror.
			    steps.push = function(method) {
			    	method(function() { });
			    }
			}
			
			// go through the ajax response and for every action (component, js evaluation, header contribution)
			// ad the proper closure to steps
			var stepIndexOfLastReplacedComponent = -1;
		    for (var i = 0; i < root.childNodes.length; ++i) {
		    	var node = root.childNodes[i];				

		        if (node.tagName == "component") {
					if (stepIndexOfLastReplacedComponent == -1) {
						this.processFocusedComponentMark(steps);
					}
					stepIndexOfLastReplacedComponent = steps.length;
					this.processComponent(steps, node);
		        } else if (node.tagName == "evaluate") {
		           this.processEvaluation(steps, node);
		        } else if (node.tagName == "header-contribution") {
		           this.processHeaderContribution(steps, node);
		        } else if (node.tagName == "redirect") {
		           this.processRedirect(steps, node);
		        }
		        
		    }
			if (stepIndexOfLastReplacedComponent != -1) {
				this.processFocusedComponentReplaceCheck(steps, stepIndexOfLastReplacedComponent);
			}

			// add the last step, which should trigger the success call the done method on request
			this.success(steps);
		    
		    if (Wicket.Browser.isKHTML() == false) {
			    Wicket.Log.info("Response parsed. Now invoking steps...");		    		   		    
			    var executer = new Wicket.FunctionsExecuter(steps);
			    executer.start();		    
		    }		    
		} catch (e) {
			this.failure(e.message);
		}
	},
	
	// Adds a closure to steps that should be invoked after all other steps have been successfully executed
	success: function(steps) {
		steps.push(function(notify) {
			Wicket.Log.info("Response processed successfully.");			
			Wicket.Ajax.invokePostCallHandlers();
			// retach the events to the new components (a bit blunt method...)
			// This should be changed for IE See comments in wicket-event.js add (attachEvent/detachEvent)
			// IE this will cause double events for everything.. (mostly because of the Function.prototype.bind(element))
			Wicket.Focus.attachFocusEvent();
			
			this.request.done();
			this.successHandler();

			// set the focus to the last component
			setTimeout("Wicket.Focus.requestFocus();", 0);
			
			// continue to next step (which should make the processing stop, as success should be the final step)		
			notify();			
		}.bind(this));
	},

	// Adds a closure that replaces a component	
	processComponent: function(steps, node) {
		steps.push(function(notify) {
			// get the component id
			var compId = node.getAttribute("id");
			var text="";

			// get the new component body
			if (node.hasChildNodes()) {
				for( i=0 ; i < node.childNodes.length; i++ ) {
     				text = text + node.childNodes[i].nodeValue;
   				} 
			}

			// if the text was escaped, unascape it
			// (escaping is done when the component body contains a CDATA section)
			var encoding = node.getAttribute("encoding");
			if (encoding != null && encoding!="") {
				text = Wicket.decode(encoding, text);
			}
			
			// get existing component
			var element = Wicket.$(compId);

			if (element == null || typeof(element) == "undefined") {			
				Wicket.Log.error("Wicket.Ajax.Call.processComponent: Component with id [["+compId+"]] a was not found while trying to perform markup update. Make sure you called component.setOutputMarkupId(true) on the component whose markup you are trying to update.");
			} else {
				// replace the component
				Wicket.replaceOuterHtml(element, text);
			}
			// continue to next step
			notify();
		});
	},
	
	// Adds a closure that evaluates javascript code
	processEvaluation: function(steps, node) {
		steps.push(function(notify) {
			// get the javascript body
		    var text = node.firstChild.nodeValue;
		    
		    // unescape it if necessary
		    var encoding = node.getAttribute("encoding");
		    if (encoding != null) {
		        text = Wicket.decode(encoding, text);
		    }
		    
		    // test if the javascript is in form of identifier|code
		    // if it is, we allow for letting the javascript decide when the rest of processing will continue 
		    // by invoking identifier();
		    var res = text.match(new RegExp("^([a-z|A-Z_][a-z|A-Z|0-9_]*)\\|((.|\\n)*)$"));
		    		     
		    if (res != null) {

		    	text = "var f = function(" + res[1] + ") {" + res[2] +"};";
		    			    	
		    	try {
			   		// do the evaluation
			    	eval(text);
			    	f(notify);
			    } catch (exception) {
			    	Wicket.Log.error("Wicket.Ajax.Call.processEvaluation: Exception evaluating javascript: " + exception);
			    }
		    	
		    } else {
		    	// just evaluate the javascript
			    try {
			   		// do the evaluation
			    	eval(text);
			    } catch (exception) {
			    	Wicket.Log.error("Wicket.Ajax.Call.processEvaluation: Exception evaluating javascript: " + exception);
			    }
			    // continue to next step
				notify();
			}
		});		
	},
	
	// Adds a closure that processes a header contribution
	processHeaderContribution: function(steps, node) {
		var c = new Wicket.Head.Contributor();
		c.processContribution(steps, node);
	},

	// Adds a closure that processes a redirect
	processRedirect: function(steps, node) {
		var text = node.firstChild.nodeValue;
		Wicket.Log.info("Redirecting to: "+text);
		window.location=text;
	},


	// mark the focused component so that we know if it has been replaced by response
	processFocusedComponentMark: function(steps) {
		steps.push(function(notify) {
			Wicket.Focus.markFocusedComponent();

			// continue to next step
			notify();
		});
	},

	// detect if the focused component was replaced
	processFocusedComponentReplaceCheck: function(steps, lastReplaceComponentStep) {
		// add this step imediately after all components have been replaced
		steps.splice(lastReplaceComponentStep + 1, 0, function(notify) {
			Wicket.Focus.checkFocusedComponentReplaced();

			// continue to next step
			notify();
		});
	}
};

/**
 * Header contribution allows component to include custom javascript and stylesheet. 
 *
 * Header contributor takes the code component would render to page head and
 * interprets it just as browser would when loading a page. 
 * That means loading external javascripts and stylesheets, executing inline 
 * javascript and aplying inline styles. 
 *
 * Header contributor also filters duplicate entries, so that it doesn't load/process
 * resources that have been loaded.
 * For inline styles and javascript, element id is used to filter out duplicate entries.
 * For stylesheet and javascript references, url is used for filtering.
 */
Wicket.Head = { };

Wicket.Head.Contributor = Wicket.Class.create();

Wicket.Head.Contributor.prototype = {
	initialize: function() {
	},
	
	// Parses the header contribution element (returns a DOM tree with the contribution)
	parse: function(headerNode) {
		// the header contribution is stored as CDATA section in the header-contribution element.
		// even though we need to parse it (and we have aleady parsed the response), header
		// contribution needs to be treated separately. The reason for this is that
		// Konqueror crashes when it there is a <script element in the parsed string. So we
		// need to replace that first
		
		// get the header contribution text and unescape it if necessary
		var text = headerNode.firstChild.nodeValue;	
	    var encoding = headerNode.getAttribute("encoding");
	    
	    if (encoding != null && encoding != "") {
	        text = Wicket.decode(encoding, text);        
	    }       
	    
	    if (Wicket.Browser.isKHTML()) {
			// konqueror crashes if there is a <script element in the xml, but <SCRIPT is fine. 
			text = text.replace(/<script/g,"<SCRIPT");
			text = text.replace(/<\/script>/g,"</SCRIPT>");	
		}
				
		// build a DOM tree of the contribution
		var xmldoc;
		if (window.ActiveXObject) {
			xmldoc = new ActiveXObject("Microsoft.XMLDOM");
			if (!xmldoc.loadXML(text)) {
				Wicket.Log.error("Error parsing response: "+text);
			}
		} else {
		    var parser = new DOMParser();    
		    xmldoc = parser.parseFromString(text, "text/xml");	
		}	
		
		return xmldoc;	
	},
	
	// Processes the parsed header contribution
	processContribution: function(steps, headerNode) {
		var xmldoc = this.parse(headerNode);
		var rootNode = xmldoc.documentElement;

		// go through the individual elements and process them according to their type
		for (var i = 0; i < rootNode.childNodes.length; i++) {
			var node = rootNode.childNodes[i];			
			if (node.tagName != null) {
				var name = node.tagName.toLowerCase();
				
				// it is possible that a reference is surrounded by a <wicket:link
				// in that case, we need to find the inner element
				if (name == "wicket:link") {					
					for (var j = 0; j < node.childNodes.length; ++j) {
						var childNode = node.childNodes[j];
						// try to find a regular node inside wicket:link
						if (childNode.nodeType == 1) {
							node = childNode;
							name = node.tagName.toLowerCase();
							break;
						}					
					}					
				}
						
				// process the element
			    if (name == "link") {
					this.processLink(steps, node);
				} else if (name == "script") {
					this.processScript(steps, node);
				} else if (name == "style") {
					this.processStyle(steps, node);
				}
			}
		}	
	},
	
	// Process an external stylesheet element
	processLink: function(steps, node) {		
		steps.push(function(notify) {
			// if the element is already in head, skip it
			if (Wicket.Head.containsElement(node, "href")) {
				notify();
				return;
			}
			// create link element
			var css = Wicket.Head.createElement("link");

			// copy required attributes
			css.id = node.getAttribute("id");
			css.rel = node.getAttribute("rel");
			css.href = node.getAttribute("href");
			css.type = node.getAttribute("type");
			
			// add element to head
			Wicket.Head.addElement(css);
			
			// continue to next step
			notify();
		});
	},
	
	// Process an inline style element
	processStyle: function(steps, node) {
		steps.push(function(notify) {
			// if element with same id is already in document, skip it
			if (Wicket.DOM.containsElement(node)) {
				notify();
				return;
			}	
			// serialize the style to string
			var content = Wicket.DOM.serializeNodeChildren(node);
			
			// create style element
			var style = Wicket.Head.createElement("style");
			
			// copy id attribute
			style.id = node.getAttribute("id");										
				
			// create stylesheet
			if (Wicket.Browser.isIE()) {
				try  {
					document.createStyleSheet().cssText = content;
				}
				catch(ignore) {
					var run = function() {
						try {
							document.createStyleSheet().cssText = content;
						}
						catch(e) {
							Wicket.Log.error("Wicket.Head.Contributor.processStyle: " + e);
						}
					}
					window.setTimeout(run, 1);
				}
			} else {			
				var textNode = document.createTextNode(content);
				style.appendChild(textNode);
			} 		
			Wicket.Head.addElement(style);
			
			// continue to next step
			notify();
		});
	},
	
	// Process a script element (both inline and external)
	processScript: function(steps, node) {
		steps.push(function(notify) {		
			// if element in same id is already in document, 
			// or element with same src attribute is in document, skip it
			if (Wicket.DOM.containsElement(node) ||
				Wicket.Head.containsElement(node, "src")) {
				notify(); 
				return;
			}
			
			// determine whether it is external javascript (has src attribute set)
			var src = node.getAttribute("src");
			
			if (src != null && src != "") {
				// load the external javascript using Wicket.Ajax.Request
				
				// callback when script is loaded
				var onLoad = function(content) {					
					Wicket.Head.addJavascript(content, null, src);
					Wicket.Ajax.invokePostCallHandlers();

					// continue to next step
					notify();
				}
				// we need to schedule the request as timeout
				// calling xml http request from another request call stack doesn't work
				window.setTimeout(function() {
					var req = new Wicket.Ajax.Request(src, onLoad, false, false);
					req.debugContent = false;
					if (Wicket.Browser.isKHTML())
						// konqueror can't process the ajax response asynchronously, therefore the 
						// javascript loading must be also synchronous
						req.async = false;
					// get the javascript
					req.get();					
				},1);
			} else {
				// serialize the element content to string
				var text = Wicket.DOM.serializeNodeChildren(node);
				// get rid of prefix and suffix, they are not eval-d correctly
				text = text.replace(/^<!--\/\*--><!\[CDATA\[\/\*><!--\*\//, "");
				text = text.replace(/\/\*-->]]>\*\/$/, "");
				
				var id = node.getAttribute("id");
				
				if (typeof(id) == "string" && id.length > 0) {					
					// add javascript to document head
					Wicket.Head.addJavascript(text, id);
				} else {
					try {
						eval(text);
					} catch (e) {
						Wicket.Log.error("Wicket.Head.Contributor.processScript: " + e + ": eval -> " + text);
					}
				}
				
				// continue to next step
				notify();
			}
		});					
	}	
};

/**
 * Head manipulation
 */

// Creates an element in document
Wicket.Head.createElement = function(name) {
	return document.createElement(name);
}

// Adds the element to page head
Wicket.Head.addElement = function(element) {
	var head = document.getElementsByTagName("head");

	if (head[0]) {
		head[0].appendChild(element);
	}
}

// Returns true, if the page head contains element that has attribute with
// name mandatoryAttribute same as the given element and their names match.
//
// e.g. Wicket.Head.containsElement(myElement, "src") return true, if there
// is an element in head that is of same type as myElement, and whose src
// attribute is same as myElement.src.
Wicket.Head.containsElement = function(element, mandatoryAttribute) {
	var attr = element.getAttribute(mandatoryAttribute);
	if (attr == null || attr == "" || typeof(attr) == "undefined")
		return false;

	var head = document.getElementsByTagName("head")[0];
	
	if (element.tagName == "script")
		head = document;
	
	var nodes = head.getElementsByTagName(element.tagName);
	
	for (var i = 0; i < nodes.length; ++i) {
		var node = nodes[i];				
		
		// check node names and mandatory attribute values
		// we also have to check for attribute name that is suffixed by "_".
		// this is necessary for filtering script references
		if (node.tagName.toLowerCase() == element.tagName.toLowerCase() &&
			(node.getAttribute(mandatoryAttribute) == attr ||
		     node.getAttribute(mandatoryAttribute+"_") == attr)) {
		    return true;
		}
	}
	return false;
}

// Adds a javascript element to page header. 
// The fakeSrc attribute is used to filter out duplicate javascript references.
// External javascripts are loaded using xmlhttprequest. Then a javascript element is created and the
// javascript body is used as text for the element. For javascript references, wicket uses the src 
// attribute to filter out duplicates. However, since we set the body of the element, we can't assign
// also a src value. Therefore we put the url to the src_ (notice the underscore)  attribute.
// Wicket.Head.containsElement is aware of that and takes also the underscored attributes into account.
Wicket.Head.addJavascript = function(content, id, fakeSrc) {
	var script = Wicket.Head.createElement("script");
	script.id = id;
	script.setAttribute("src_", fakeSrc);
	
	// set the javascript as element content
	if (null == script.canHaveChildren || script.canHaveChildren) {
		var textNode = document.createTextNode(content);			
		script.appendChild(textNode);
	} else {
		script.text = content;
	} 		
	Wicket.Head.addElement(script);	
}

// Goes through all script elements contained by the element and add them to head
Wicket.Head.addJavascripts = function(element, contentFilter) {	
	function add(element) {
		var src = element.getAttribute("src");
		
		// if it is a reference, just add it to head				
		if (src != null && src.length > 0) {			
			var e = document.createElement("script");
			e.setAttribute("type","text/javascript");
			e.setAttribute("src", src);
			Wicket.Head.addElement(e);											
		} else {	
			var content = Wicket.DOM.serializeNodeChildren(element);		
			if (content == null || content == "")
				content = element.text;
			
			if (typeof(contentFilter) == "function") {
				content = contentFilter(content);
			}
			
			Wicket.Head.addJavascript(content);
		}		
	}
	if (typeof(element) != "undefined" &&
	    typeof(element.tagName) != "undefined" &&
	    element.tagName.toLowerCase() == "script") {
		add(element);
	} else {
		// we need to check if there are any children, because Safari
		// aborts when the element is a text node			
		if (element.childNodes.length > 0) {			
			var scripts = element.getElementsByTagName("script");
			for (var i = 0; i < scripts.length; ++i) {
				add(scripts[i]);
			}
		}
	}
}

/**
 * Throttler's purpose is to make sure that ajax requests wont be fired too often.
 */

Wicket.ThrottlerEntry = Wicket.Class.create();
Wicket.ThrottlerEntry.prototype = {
	initialize: function(func) {
		this.func = func;
		this.timestamp = new Date().getTime();
		this.timeoutVar = undefined;
	},
	
	getTimestamp: function() {
		return this.timestamp;
	},
	
	getFunc: function() {
		return this.func;
	},
	
	setFunc: function(func) {
		this.func = func;
	},

	getTimeoutVar: function() {
        return this.timeoutVar;
	},

	setTimeoutVar: function(timeoutVar) {
        this.timeoutVar = timeoutVar;
	}
};

Wicket.Throttler = Wicket.Class.create();
Wicket.Throttler.prototype = {

    /* "postponeTimerOnUpdate" is an optional parameter. If it is set to true, then the timer is
       reset each time the throttle function gets called. Use this behaviour if you want something
       to happen at X milliseconds after the *last* call to throttle.
       If the parameter is not set, or set to false, then the timer is not reset. */
	initialize: function(postponeTimerOnUpdate) {
		this.entries = new Array();
		if (postponeTimerOnUpdate != undefined)
            this.postponeTimerOnUpdate = postponeTimerOnUpdate;
        else
            this.postponeTimerOnUpdate = false;
	},
	
	throttle: function(id, millis, func) {
		var entry = this.entries[id];
		var me = this;
		if (entry == undefined) {
			entry = new Wicket.ThrottlerEntry(func);
			entry.setTimeoutVar(window.setTimeout(function() { me.execute(id); }, millis));
			this.entries[id] = entry;
		} else {
			entry.setFunc(func);
            if (this.postponeTimerOnUpdate == true)
            {
                window.clearTimeout(entry.getTimeoutVar());
                entry.setTimeoutVar(window.setTimeout(function() { me.execute(id); }, millis));
            }
		}	
	},
	
	execute: function(id) {
		var entry = this.entries[id];
		if (entry != undefined) {
			var func = entry.getFunc();
            this.entries[id] = undefined;	
			var tmp = func();
		}
	}
};

Wicket.throttler = new Wicket.Throttler();

/**
 * Prevent event from bubbling up in the element hierarchy.
 */
Wicket.stopEvent = function(e) {
	e=Wicket.fixEvent(e);		
	e.cancelBubble = true;
	if (e.stopPropagation)
		e.stopPropagation();
}

/**
 * If no event is given as argument (IE), window.event is returned. 
 */
Wicket.fixEvent = function(e) {
	if (typeof e == 'undefined') 
		e = window.event;
	return e;		
}

/**
 * Flexible dragging support.
 */
Wicket.Drag = {
		
	/**
	 * Initializes the dragging on the specified element.
	 * Element's onmousedown will be replaced by generated handler.
	 *
	 * @param {Element} element - element clicking on which the drag should begin 
	 * @param {Function} onDragBegin - handler called at the begin on dragging - passed element as first parameter
	 * @param {Function} onDragEnd - handler called at the end of dragging - passed element as first parameter
	 * @param {Function} onDrag - handler called during dragging - passed element and mouse deltas	 
	 */
	init: function(element, onDragBegin, onDragEnd, onDrag) {		
		
		if (typeof(onDragBegin) == "undefined")
			onDragBegin = Wicket.emptyFunction;
		if (typeof(onDragEnd) == "undefined")
			onDragEnd = Wicket.emptyFunction;
		if (typeof(onDrag) == "undefined")
			onDrag = Wicket.emptyFunction;

		element.wicketOnDragBegin = onDragBegin;
		element.wicketOnDrag = onDrag;
		element.wicketOnDragEnd = onDragEnd;

		
		// set the mousedown handler 
		Wicket.Event.add(element, "mousedown", Wicket.Drag.mouseDownHandler);									
	},
	
	mouseDownHandler: function(e) {
		e = Wicket.fixEvent(e);
	
		var element = this;
	
		// HACK - for safari stopPropagation doesn't work well because
		// it also prevents scrollbars and form components getting the
		// event. Therefore for safari the 'ignore' flag is set on event. 
		if (typeof(e.ignore) == "undefined") {
			
			Wicket.stopEvent(e);
			
			if (e.preventDefault) {
				e.preventDefault();
			}

			element.wicketOnDragBegin(element);		
			
			element.lastMouseX = e.clientX;
			element.lastMouseY = e.clientY;
			
			element.old_onmousemove = document.onmousemove;
			element.old_onmouseup = document.onmouseup;
			element.old_onselectstart = document.onselectstart;	
			element.old_onmouseout = document.onmouseout;		
			
			document.onselectstart = function() { return false; }
			document.onmousemove = Wicket.Drag.mouseMove;
			document.onmouseup = Wicket.Drag.mouseUp;
			document.onmouseout = Wicket.Drag.mouseOut;				
						
			Wicket.Drag.current = element;
						
			return false;
		} 			
			
	},
	
	/**
	 * Deinitializes the dragging support on given element. 
	 */
	clean: function(element) {
		element.onmousedown = null;
	},

	/**
	 * Called when mouse is moved. This method fires the onDrag event
	 * with element instance, deltaX and deltaY (the distance
	 * between this call and the previous one).
	 
	 * The onDrag handler can optionally return an array of two integers 
	 * - the delta correction. This is used, for example, if there is
	 * element being resized and the size limit has been reached (but the
	 * mouse can still move).
	 * 
	 * @param {Event} e
	 */	
	mouseMove: function(e) {
		e = Wicket.fixEvent(e);
		var o = Wicket.Drag.current;

		// this happens sometimes in Safari 
		if (e.clientX < 0 || e.clientY < 0) {
			return;
		}		

		if (o != null) {		
			var deltaX = e.clientX - o.lastMouseX;
			var deltaY = e.clientY - o.lastMouseY;
				
			var res = o.wicketOnDrag(o, deltaX, deltaY, e);
			
			if (res == null)
				res = [0, 0];
			
			o.lastMouseX = e.clientX + res[0];
			o.lastMouseY = e.clientY + res[1];
		}
		
		return false;
	},

	/**
	 * Called when the mouse button is released.
	 * Cleans all temporary variables and callback methods.
	 * 
	 * @param {Event} e
	 */	
	mouseUp: function(e) {		
		e = Wicket.fixEvent(e);
		var o = Wicket.Drag.current;
		
		if (o != null && typeof(o) != "undefined") {
			o.wicketOnDragEnd(o);		
			
			o.lastMouseX = null;
			o.lastMouseY = null;
			
			document.onmousemove = o.old_onmousemove;
			document.onmouseup = o.old_onmouseup;		
			document.onselectstart = o.old_onselectstart;
					
			document.onmouseout = o.old_onmouseout;
			
			o.old_mousemove = null;		
			o.old_mouseup = null;
			o.old_onselectstart = null;
			o.old_onmouseout = null;
			
			Wicket.Drag.current = null;
		}
	},
	
	/**
	 * Called when mouse leaves an element. We need this for firefox, as otherwise
	 * the dragging would continue after mouse leaves the document.
	 * Unfortunately this break dragging in firefox immediately after the mouse leaves
	 * page. 
	 */
	mouseOut: function(e) {
		if (false && Wicket.Browser.isGecko()) {
			// other browsers handle this more gracefully		
			e = Wicket.fixEvent(e);
			
			if (e.target.tagName == "HTML") {
				Wicket.Drag.mouseUp(e);				
			}
		}
	}
	
	
};

Wicket.ChangeHandler=function(elementId){
    var KEY_BACKSPACE=8;
    var KEY_TAB=9;
    var KEY_ENTER=13;
    var KEY_ESC=27;
    var KEY_LEFT=37;
    var KEY_UP=38;
    var KEY_RIGHT=39;
    var KEY_DOWN=40;
    var KEY_SHIFT=16;
    var KEY_CTRL=17;
    var KEY_ALT=18;

	var obj = Wicket.$(elementId);
	obj.setAttribute("autocomplete", "off");
	obj.onchangeoriginal = obj.onchange;
	
	if (Wicket.Browser.isIE() || Wicket.Browser.isKHTML() || Wicket.Browser.isSafari()) {
	
		var objonchange = obj.onchange;

		obj.onkeyup = function(event) {		
			switch (wicketKeyCode(Wicket.fixEvent(event))) {
				case KEY_ENTER:
				case KEY_UP:
				case KEY_DOWN:
				case KEY_ESC:
				case KEY_TAB:
				case KEY_RIGHT:
				case KEY_LEFT:
				case KEY_SHIFT:
				case KEY_ALT:
				case KEY_CTRL:
					return Wicket.stopEvent(event);
					break;
				default:
					if (typeof objonchange == "function")objonchange();
			}
			return null;
		}
		
		obj.onpaste = function(event) {
			if (typeof objonchange == "function"){
				setTimeout(function() {
	   			  objonchange();
			     }, 10);
			}
			return null;
		}
		
		obj.oncut = function(event) {
			if (typeof objonchange == "function"){
				setTimeout(function() {
	   			  objonchange();
			     }, 10);
			}
			return null;
		}
	} else {
		obj.addEventListener('input', obj.onchange, true);
	}

	obj.onchange = function(event) {
		Wicket.stopEvent(event);
	}
} 

/*
 * Compatibility layer to maintain the original wicket-ajax API.
 */

var wicketThrottler = Wicket.throttler;

function wicketAjaxGet(url, successHandler, failureHandler, precondition, channel) {

	var call = new Wicket.Ajax.Call(url, successHandler, failureHandler, channel);
	
	if (typeof(precondition) != "undefined" && precondition != null) {
		call.request.precondition = precondition;
	}
	
	return call.call();
}

function wicketAjaxPost(url, body, successHandler, failureHandler, precondition, channel) {
	var call = new Wicket.Ajax.Call(url, successHandler, failureHandler, channel);
	
	if (typeof(precondition) != "undefined" && precondition != null) {		
		call.request.precondition = precondition;
	}
	
	return call.post(body);
}

function wicketSubmitForm(form, url, submitButton, successHandler, failureHandler, precondition, channel) {
	var call = new Wicket.Ajax.Call(url, successHandler, failureHandler, channel);
	
	if (typeof(precondition) != "undefined" && precondition != null) {
		call.request.precondition = precondition;
	}
	
	return call.submitForm(form, submitButton);
}

function wicketSubmitFormById(formId, url, submitButton, successHandler, failureHandler, precondition, channel) {
	var call = new Wicket.Ajax.Call(url, successHandler, failureHandler, channel);
	
	if (typeof(precondition) != "undefined" && precondition != null) {
		call.request.precondition = precondition;
	}
	
	return call.submitFormById(formId, submitButton);
}

wicketSerialize = Wicket.Form.serializeElement;

wicketSerializeForm = Wicket.Form.serialize;

wicketEncode = Wicket.Form.encode;

wicketDecode = Wicket.decode;

wicketAjaxGetTransport = Wicket.Ajax.getTransport;

// Global handlers stubs

Wicket.Ajax.registerPreCallHandler(function() {
	if (typeof(window.wicketGlobalPreCallHandler) != "undefined") {
	    var global=wicketGlobalPreCallHandler;
	    if (global!=null) {
	    	global();
	    }
	}    
});

Wicket.Ajax.registerPostCallHandler(function() {
	if (typeof(window.wicketGlobalPostCallHandler) != "undefined") {
	    var global=wicketGlobalPostCallHandler;
	    if (global!=null) {
	    	global();
	    }
	}    
});

Wicket.Ajax.registerFailureHandler(function() {
	if (typeof(window.wicketGlobalFailureHandler) != "undefined") {
	    var global=wicketGlobalFailureHandler;
	    if (global!=null) {
	    	global();
	    }
	}    
});

// FOCUS FUNCTIONS

Wicket.Focus = {
	lastFocusId : "",
	refocusLastFocusedComponentAfterResponse : false,
	focusSetFromServer : false,

	setFocus: function(event)
	{ 
		event = Wicket.fixEvent(event);		
	
	    // IE doesn't have the property "target".
	    // Use "srcElement" instead.
	    var target = event.target ? event.target : event.srcElement;
	    if (target) {
			Wicket.Focus.refocusLastFocusedComponentAfterResponse = false;
			Wicket.Focus.lastFocusId=target.id;
			Wicket.Log.info("focus set on " + Wicket.Focus.lastFocusId);
		}
	},
	
	blur: function(event)
	{ 
		event = Wicket.fixEvent(event);		
	
	    // IE doesn't have the property "target".
	    // Use "srcElement" instead.
	    var target = event.target ? event.target : event.srcElement;
	    if (target && Wicket.Focus.lastFocusId==target.id) {
			if (Wicket.Focus.refocusLastFocusedComponentAfterResponse) {
				// replaced components seem to blur when replaced only on Safari - so do not modify lastFocusId so it gets refocused
				Wicket.Log.info("focus removed from " + target.id + " but ignored because of component replacement");
			} else {
				Wicket.Focus.lastFocusId=null;
				Wicket.Log.info("focus removed from " + target.id);
			}
		}
	},
	
	getFocusedElement: function()
	{
		if (typeof(Wicket.Focus.lastFocusId) != "undefined" && Wicket.Focus.lastFocusId != "" && Wicket.Focus.lastFocusId != null)
		{
			Wicket.Log.info("returned focused element: " + Wicket.$(Wicket.Focus.lastFocusId)); 
			return Wicket.$(Wicket.Focus.lastFocusId);
		}
		return;
	},

	setFocusOnId: function(id)
	{
		if (typeof(id) != "undefined" && id != "" && id != null) {
			Wicket.Focus.refocusLastFocusedComponentAfterResponse = true;
			Wicket.Focus.focusSetFromServer = true;
			Wicket.Focus.lastFocusId=id;
			Wicket.Log.info("focus set on " + Wicket.Focus.lastFocusId + " from serverside");
		} else {
			Wicket.Focus.refocusLastFocusedComponentAfterResponse = false;
			Wicket.Log.info("refocus focused component after request stopped from serverside");
		}
	},
	
	// mark the focused component so that we know if it has been replaced or not by response
	markFocusedComponent: function()
	{
		var focusedElement = Wicket.Focus.getFocusedElement();
		if (typeof(focusedElement) != "undefined" && focusedElement != null) {
			focusedElement.wasFocusedBeforeComponentReplacements = true; // create a property of the focused element that would not remain there if component is replaced
			Wicket.Focus.refocusLastFocusedComponentAfterResponse = true;
			Wicket.Focus.focusSetFromServer = false;
		} else {
			Wicket.Focus.refocusLastFocusedComponentAfterResponse = false;
		}
	},

	// detect if the focused component was replaced
	checkFocusedComponentReplaced: function()
	{
		var focusedElement = Wicket.Focus.getFocusedElement();
		if (Wicket.Focus.refocusLastFocusedComponentAfterResponse == true)
		{
			if (typeof(focusedElement) != "undefined" && focusedElement != null) {
				if (typeof(focusedElement.wasFocusedBeforeComponentReplacements) != "undefined")
				{
					// focus component was not replaced - no need to refocus it
					Wicket.Focus.refocusLastFocusedComponentAfterResponse = false;
				}
			} else {
				// focused component dissapeared completely - no use to try to refocus it
				Wicket.Focus.refocusLastFocusedComponentAfterResponse = false;
				Wicket.Focus.lastFocusId = "";
			}
		}
	},
	
	requestFocus: function()
	{
		// if the focused component is replaced by the ajax response, a re-focus might be needed (if focus was not changed from server)
		// but if not, and the focus component should remain the same, do not re-focus - fixes problem on IE6 for combos that have the popup open (refocusing closes popup)
		if (Wicket.Focus.refocusLastFocusedComponentAfterResponse && typeof(Wicket.Focus.lastFocusId) != "undefined" && Wicket.Focus.lastFocusId != "" && Wicket.Focus.lastFocusId != null)
		{ 
			var toFocus = Wicket.$(Wicket.Focus.lastFocusId);
			
			if (toFocus != null && typeof(toFocus) != "undefined") {
				Wicket.Log.info("Calling focus on " + Wicket.Focus.lastFocusId);
				try {
					if (Wicket.Focus.focusSetFromServer) {
						toFocus.focus();
					} else {
						// avoid loops like - onfocus triggering an event the modifies the tag => refocus => the event is triggered again
						var temp = toFocus.onfocus;
						toFocus.onfocus = null;
						toFocus.focus();
						setTimeout(function() { toFocus.onfocus = temp; }, 0);	// IE needs setTimeout (it seems not to call onfocus sync. when focus() is called
					}
				} catch (ignore) {
				}
			}
			else
			{
				Wicket.Focus.lastFocusId = "";
				Wicket.Log.info("Couldn't set focus on " + Wicket.Focus.lastFocusId + " not on the page anymore");
			}
		}
		else if (Wicket.Focus.refocusLastFocusedComponentAfterResponse)
		{
			Wicket.Log.info("last focus id was not set");
		}
		else
		{
			Wicket.Log.info("refocus last focused component not needed/allowed");
		}
		Wicket.Focus.refocusLastFocusedComponentAfterResponse = false;
	},
	
	setFocusOnElements: function (elements)
	{
		// we need to cache array length because IE will try to recalculate 
		// the collection of elements every time length() is called which can be quiet expensive
		// if the collection is a result of getElementsByTagName or a similar function.
		var len=elements.length;
		for (var i=0; i< len; i++)
		{
		    if (elements[i].wicketFocusSet != true)
		    {
		         Wicket.Event.add(elements[i],'focus',Wicket.Focus.setFocus);
		         Wicket.Event.add(elements[i],'blur',Wicket.Focus.blur);		         
		         elements[i].wicketFocusSet = true;
		    }
		}
	},
	
	attachFocusEvent: function()
	{
		Wicket.Focus.setFocusOnElements(document.getElementsByTagName("input"));
		Wicket.Focus.setFocusOnElements(document.getElementsByTagName("select"));
		Wicket.Focus.setFocusOnElements(document.getElementsByTagName("textarea"));
		Wicket.Focus.setFocusOnElements(document.getElementsByTagName("button"));
		Wicket.Focus.setFocusOnElements(document.getElementsByTagName("a"));
	}
}
Wicket.Event.addDomReadyEvent(Wicket.Focus.attachFocusEvent);


// DEBUG FUNCTIONS
function wicketAjaxDebugEnabled() {
    if (typeof(wicketAjaxDebugEnable)=="undefined") {
        return false;
    } else {
        return wicketAjaxDebugEnable==true;
    }
}

// MISC FUNCTIONS
function wicketKeyCode(event) {
    if (typeof(event.keyCode)=="undefined") {
        return event.which;
    } else {
        return event.keyCode;
    }
}

function wicketGet(id) {
    return Wicket.$(id);
}

function wicketShow(id) {
    var e=wicketGet(id);
    if (e!=null) {
	    e.style.display = "";
	}
}

function wicketHide(id) {
    var e=wicketGet(id);
	if (e!=null) {
	    e.style.display = "none";
	}
}


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offsetParent=($(this).css("position")=="absolute")?$(this).parents().eq(0).offsetParent():$(this).offsetParent();var pos=$(this).btPosition();var top=numb(pos.top)+numb($(this).css("margin-top"))-shadowShiftY;var left=numb(pos.left)+numb($(this).css("margin-left"))-shadowShiftX}var width=$(this).btOuterWidth();var height=$(this).outerHeight();if(typeof content=="object"){var original=content;var clone=$(original).clone(true).show();var origClones=$(original).data("bt-clones")||[];origClones.push(clone);$(original).data("bt-clones",origClones);$(clone).data("bt-orig",original);$(this).data("bt-content-orig",{original:original,clone:clone});content=clone}if(typeof content=="null"||content==""){return}var $text=$('<div class="bt-content"></div>').append(content).css({padding:opts.padding,position:"absolute",width:(opts.shrinkToFit?"auto":opts.width),zIndex:opts.textzIndex,left:shadowShiftX,top:shadowShiftY}).css(opts.cssStyles);var $box=$('<div class="bt-wrapper"></div>').append($text).addClass(opts.cssClass).css({position:"absolute",width:opts.width,zIndex:opts.wrapperzIndex,visibility:"hidden"}).appendTo(offsetParent);if(jQuery.fn.bgiframe){$text.bgiframe();$box.bgiframe()}$(this).data("bt-box",$box);var scrollTop=numb($(document).scrollTop());var scrollLeft=numb($(document).scrollLeft());var docWidth=numb($(window).width());var docHeight=numb($(window).height());var winRight=scrollLeft+docWidth;var winBottom=scrollTop+docHeight;var space=new Object();var thisOffset=$(this).offset();space.top=thisOffset.top-scrollTop;space.bottom=docHeight-((thisOffset+height)-scrollTop);space.left=thisOffset.left-scrollLeft;space.right=docWidth-((thisOffset.left+width)-scrollLeft);var textOutHeight=numb($text.outerHeight());var textOutWidth=numb($text.btOuterWidth());if(opts.positions.constructor==String){opts.positions=opts.positions.replace(/ /,"").split(",")}if(opts.positions[0]=="most"){var position="top";for(var pig in space){position=space[pig]>space[position]?pig:position}}else{for(var x in opts.positions){var position=opts.positions[x];if((position=="left"||position=="right")&&space[position]>textOutWidth+opts.spikeLength){break}else{if((position=="top"||position=="bottom")&&space[position]>textOutHeight+opts.spikeLength){break}}}}var horiz=left+((width-textOutWidth)*0.5);var vert=top+((height-textOutHeight)*0.5);var points=new Array();var textTop,textLeft,textRight,textBottom,textTopSpace,textBottomSpace,textLeftSpace,textRightSpace,crossPoint,textCenter,spikePoint;switch(position){case"top":$text.css("margin-bottom",opts.spikeLength+"px");$box.css({top:(top-$text.outerHeight(true))+opts.overlap,left:horiz});textRightSpace=(winRight-opts.windowMargin)-($text.offset().left+$text.btOuterWidth(true));var xShift=shadowShiftX;if(textRightSpace<0){$box.css("left",(numb($box.css("left"))+textRightSpace)+"px");xShift-=textRightSpace}textLeftSpace=($text.offset().left+numb($text.css("margin-left")))-(scrollLeft+opts.windowMargin);if(textLeftSpace<0){$box.css("left",(numb($box.css("left"))-textLeftSpace)+"px");xShift+=textLeftSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={y:textBottom+opts.spikeLength,x:((textRight-textLeft)*0.5)+xShift,type:"spike"};crossPoint=findIntersectX(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textBottom);crossPoint.x=crossPoint.x<textLeft+opts.spikeGirth/2+opts.cornerRadius?textLeft+opts.spikeGirth/2+opts.cornerRadius:crossPoint.x;crossPoint.x=crossPoint.x>(textRight-opts.spikeGirth/2)-opts.cornerRadius?(textRight-opts.spikeGirth/2)-opts.CornerRadius:crossPoint.x;points[points.length]={x:crossPoint.x-(opts.spikeGirth/2),y:textBottom,type:"join"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:crossPoint.x+(opts.spikeGirth/2),y:textBottom,type:"join"};points[points.length]=spikePoint;break;case"left":$text.css("margin-right",opts.spikeLength+"px");$box.css({top:vert+"px",left:((left-$text.btOuterWidth(true))+opts.overlap)+"px"});textBottomSpace=(winBottom-opts.windowMargin)-($text.offset().top+$text.outerHeight(true));var yShift=shadowShiftY;if(textBottomSpace<0){$box.css("top",(numb($box.css("top"))+textBottomSpace)+"px");yShift-=textBottomSpace}textTopSpace=($text.offset().top+numb($text.css("margin-top")))-(scrollTop+opts.windowMargin);if(textTopSpace<0){$box.css("top",(numb($box.css("top"))-textTopSpace)+"px");yShift+=textTopSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:textRight+opts.spikeLength,y:((textBottom-textTop)*0.5)+yShift,type:"spike"};crossPoint=findIntersectY(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textRight);crossPoint.y=crossPoint.y<textTop+opts.spikeGirth/2+opts.cornerRadius?textTop+opts.spikeGirth/2+opts.cornerRadius:crossPoint.y;crossPoint.y=crossPoint.y>(textBottom-opts.spikeGirth/2)-opts.cornerRadius?(textBottom-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.y;points[points.length]={x:textRight,y:crossPoint.y+opts.spikeGirth/2,type:"join"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:crossPoint.y-opts.spikeGirth/2,type:"join"};points[points.length]=spikePoint;break;case"bottom":$text.css("margin-top",opts.spikeLength+"px");$box.css({top:(top+height)-opts.overlap,left:horiz});textRightSpace=(winRight-opts.windowMargin)-($text.offset().left+$text.btOuterWidth(true));var xShift=shadowShiftX;if(textRightSpace<0){$box.css("left",(numb($box.css("left"))+textRightSpace)+"px");xShift-=textRightSpace}textLeftSpace=($text.offset().left+numb($text.css("margin-left")))-(scrollLeft+opts.windowMargin);if(textLeftSpace<0){$box.css("left",(numb($box.css("left"))-textLeftSpace)+"px");xShift+=textLeftSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:((textRight-textLeft)*0.5)+xShift,y:shadowShiftY,type:"spike"};crossPoint=findIntersectX(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textTop);crossPoint.x=crossPoint.x<textLeft+opts.spikeGirth/2+opts.cornerRadius?textLeft+opts.spikeGirth/2+opts.cornerRadius:crossPoint.x;crossPoint.x=crossPoint.x>(textRight-opts.spikeGirth/2)-opts.cornerRadius?(textRight-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.x;points[points.length]={x:crossPoint.x+opts.spikeGirth/2,y:textTop,type:"join"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:crossPoint.x-(opts.spikeGirth/2),y:textTop,type:"join"};points[points.length]=spikePoint;break;case"right":$text.css("margin-left",(opts.spikeLength+"px"));$box.css({top:vert+"px",left:((left+width)-opts.overlap)+"px"});textBottomSpace=(winBottom-opts.windowMargin)-($text.offset().top+$text.outerHeight(true));var yShift=shadowShiftY;if(textBottomSpace<0){$box.css("top",(numb($box.css("top"))+textBottomSpace)+"px");yShift-=textBottomSpace}textTopSpace=($text.offset().top+numb($text.css("margin-top")))-(scrollTop+opts.windowMargin);if(textTopSpace<0){$box.css("top",(numb($box.css("top"))-textTopSpace)+"px");yShift+=textTopSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:shadowShiftX,y:((textBottom-textTop)*0.5)+yShift,type:"spike"};crossPoint=findIntersectY(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textLeft);crossPoint.y=crossPoint.y<textTop+opts.spikeGirth/2+opts.cornerRadius?textTop+opts.spikeGirth/2+opts.cornerRadius:crossPoint.y;crossPoint.y=crossPoint.y>(textBottom-opts.spikeGirth/2)-opts.cornerRadius?(textBottom-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.y;points[points.length]={x:textLeft,y:crossPoint.y-opts.spikeGirth/2,type:"join"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:crossPoint.y+opts.spikeGirth/2,type:"join"};points[points.length]=spikePoint;break}var canvas=document.createElement("canvas");$(canvas).attr("width",(numb($text.btOuterWidth(true))+opts.strokeWidth*2+shadowMarginX)).attr("height",(numb($text.outerHeight(true))+opts.strokeWidth*2+shadowMarginY)).appendTo($box).css({position:"absolute",zIndex:opts.boxzIndex});if(typeof G_vmlCanvasManager!="undefined"){canvas=G_vmlCanvasManager.initElement(canvas)}if(opts.cornerRadius>0){var newPoints=new Array();var newPoint;for(var i=0;i<points.length;i++){if(points[i].type=="corner"){newPoint=betweenPoint(points[i],points[(i-1)%points.length],opts.cornerRadius);newPoint.type="arcStart";newPoints[newPoints.length]=newPoint;newPoints[newPoints.length]=points[i];newPoint=betweenPoint(points[i],points[(i+1)%points.length],opts.cornerRadius);newPoint.type="arcEnd";newPoints[newPoints.length]=newPoint}else{newPoints[newPoints.length]=points[i]}}points=newPoints}var ctx=canvas.getContext("2d");if(opts.shadow&&opts.shadowOverlap!==true){var shadowOverlap=numb(opts.shadowOverlap);switch(position){case"top":if(opts.shadowOffsetX+opts.shadowBlur-shadowOverlap>0){$box.css("top",(numb($box.css("top"))-(opts.shadowOffsetX+opts.shadowBlur-shadowOverlap)))}break;case"right":if(shadowShiftX-shadowOverlap>0){$box.css("left",(numb($box.css("left"))+shadowShiftX-shadowOverlap))}break;case"bottom":if(shadowShiftY-shadowOverlap>0){$box.css("top",(numb($box.css("top"))+shadowShiftY-shadowOverlap))}break;case"left":if(opts.shadowOffsetY+opts.shadowBlur-shadowOverlap>0){$box.css("left",(numb($box.css("left"))-(opts.shadowOffsetY+opts.shadowBlur-shadowOverlap)))}break}}drawIt.apply(ctx,[points],opts.strokeWidth);ctx.fillStyle=opts.fill;if(opts.shadow){ctx.shadowOffsetX=opts.shadowOffsetX;ctx.shadowOffsetY=opts.shadowOffsetY;ctx.shadowBlur=opts.shadowBlur;ctx.shadowColor=opts.shadowColor}ctx.closePath();ctx.fill();if(opts.strokeWidth>0){ctx.shadowColor="rgba(0, 0, 0, 0)";ctx.lineWidth=opts.strokeWidth;ctx.strokeStyle=opts.strokeStyle;ctx.beginPath();drawIt.apply(ctx,[points],opts.strokeWidth);ctx.closePath();ctx.stroke()}opts.preShow.apply(this,[$box[0]]);$box.css({display:"none",visibility:"visible"});opts.showTip.apply(this,[$box[0]]);if(opts.overlay){var overlay=$('<div class="bt-overlay"></div>').css({position:"absolute",backgroundColor:"blue",top:top,left:left,width:width,height:height,opacity:".2"}).appendTo(offsetParent);$(this).data("overlay",overlay)}if((opts.ajaxPath!=null&&opts.ajaxCache==false)||ajaxTimeout){content=false}if(opts.clickAnywhereToClose){jQuery.bt.vars.clickAnywhereStack.push(this);$(document).click(jQuery.bt.docClick)}if(opts.closeWhenOthersOpen){jQuery.bt.vars.closeWhenOpenStack.push(this)}opts.postShow.apply(this,[$box[0]])};this.btOff=function(){var box=$(this).data("bt-box");opts.preHide.apply(this,[box]);var i=this;i.btCleanup=function(){var box=$(i).data("bt-box");var contentOrig=$(i).data("bt-content-orig");var overlay=$(i).data("bt-overlay");if(typeof box=="object"){$(box).remove();$(i).removeData("bt-box")}if(typeof contentOrig=="object"){var clones=$(contentOrig.original).data("bt-clones");$(contentOrig).data("bt-clones",arrayRemove(clones,contentOrig.clone))}if(typeof overlay=="object"){$(overlay).remove();$(i).removeData("bt-overlay")}jQuery.bt.vars.clickAnywhereStack=arrayRemove(jQuery.bt.vars.clickAnywhereStack,i);jQuery.bt.vars.closeWhenOpenStack=arrayRemove(jQuery.bt.vars.closeWhenOpenStack,i);$(i).removeClass("bt-active "+opts.activeClass);opts.postHide.apply(i)};opts.hideTip.apply(this,[box,i.btCleanup])};var refresh=this.btRefresh=function(){this.btOff();this.btOn()}});function drawIt(points,strokeWidth){this.moveTo(points[0].x,points[0].y);for(i=1;i<points.length;i++){if(points[i-1].type=="arcStart"){this.quadraticCurveTo(round5(points[i].x,strokeWidth),round5(points[i].y,strokeWidth),round5(points[(i+1)%points.length].x,strokeWidth),round5(points[(i+1)%points.length].y,strokeWidth));i++}else{this.lineTo(round5(points[i].x,strokeWidth),round5(points[i].y,strokeWidth))}}}function round5(num,strokeWidth){var ret;strokeWidth=numb(strokeWidth);if(strokeWidth%2){ret=num}else{ret=Math.round(num-0.5)+0.5}return ret}function numb(num){return parseInt(num)||0}function arrayRemove(arr,elem){var x,newArr=new Array();for(x in arr){if(arr[x]!=elem){newArr.push(arr[x])}}return newArr}function canvasSupport(){var canvas_compatible=false;try{canvas_compatible=!!(document.createElement("canvas").getContext("2d"))}catch(e){canvas_compatible=!!(document.createElement("canvas").getContext)}return canvas_compatible}function shadowSupport(){try{var userAgent=navigator.userAgent.toLowerCase();if(/webkit/.test(userAgent)){return true}else{if(/gecko|mozilla/.test(userAgent)&&parseFloat(userAgent.match(/firefox\/(\d+(?:\.\d+)+)/)[1])>=3.1){return true}}}catch(err){}return false}function betweenPoint(point1,point2,dist){var y,x;if(point1.x==point2.x){y=point1.y<point2.y?point1.y+dist:point1.y-dist;return{x:point1.x,y:y}}else{if(point1.y==point2.y){x=point1.x<point2.x?point1.x+dist:point1.x-dist;return{x:x,y:point1.y}}}}function centerPoint(arcStart,corner,arcEnd){var x=corner.x==arcStart.x?arcEnd.x:arcStart.x;var y=corner.y==arcStart.y?arcEnd.y:arcStart.y;var startAngle,endAngle;if(arcStart.x<arcEnd.x){if(arcStart.y>arcEnd.y){startAngle=(Math.PI/180)*180;endAngle=(Math.PI/180)*90}else{startAngle=(Math.PI/180)*90;endAngle=0}}else{if(arcStart.y>arcEnd.y){startAngle=(Math.PI/180)*270;endAngle=(Math.PI/180)*180}else{startAngle=0;endAngle=(Math.PI/180)*270}}return{x:x,y:y,type:"center",startAngle:startAngle,endAngle:endAngle}}function findIntersect(r1x1,r1y1,r1x2,r1y2,r2x1,r2y1,r2x2,r2y2){if(r2x1==r2x2){return findIntersectY(r1x1,r1y1,r1x2,r1y2,r2x1)}if(r2y1==r2y2){return findIntersectX(r1x1,r1y1,r1x2,r1y2,r2y1)}var r1m=(r1y1-r1y2)/(r1x1-r1x2);var r1b=r1y1-(r1m*r1x1);var r2m=(r2y1-r2y2)/(r2x1-r2x2);var r2b=r2y1-(r2m*r2x1);var x=(r2b-r1b)/(r1m-r2m);var y=r1m*x+r1b;return{x:x,y:y}}function findIntersectY(r1x1,r1y1,r1x2,r1y2,x){if(r1y1==r1y2){return{x:x,y:r1y1}}var r1m=(r1y1-r1y2)/(r1x1-r1x2);var r1b=r1y1-(r1m*r1x1);var y=r1m*x+r1b;return{x:x,y:y}}function findIntersectX(r1x1,r1y1,r1x2,r1y2,y){if(r1x1==r1x2){return{x:r1x1,y:y}}var r1m=(r1y1-r1y2)/(r1x1-r1x2);var r1b=r1y1-(r1m*r1x1);var x=(y-r1b)/r1m;return{x:x,y:y}}};jQuery.fn.btPosition=function(){function num(elem,prop){return elem[0]&&parseInt(jQuery.curCSS(elem[0],prop,true),10)||0}var left=0,top=0,results;if(this[0]){var offsetParent=this.offsetParent(),offset=this.offset(),parentOffset=/^body|html$/i.test(offsetParent[0].tagName)?{top:0,left:0}:offsetParent.offset();offset.top-=num(this,"marginTop");offset.left-=num(this,"marginLeft");parentOffset.top+=num(offsetParent,"borderTopWidth");parentOffset.left+=num(offsetParent,"borderLeftWidth");results={top:offset.top-parentOffset.top,left:offset.left-parentOffset.left}}return results};jQuery.fn.btOuterWidth=function(margin){function num(elem,prop){return elem[0]&&parseInt(jQuery.curCSS(elem[0],prop,true),10)||0}return this["innerWidth"]()+num(this,"borderLeftWidth")+num(this,"borderRightWidth")+(margin?num(this,"marginLeft")+num(this,"marginRight"):0)};jQuery.fn.btOn=function(){return this.each(function(index){if(jQuery.isFunction(this.btOn)){this.btOn()}})};jQuery.fn.btOff=function(){return this.each(function(index){if(jQuery.isFunction(this.btOff)){this.btOff()}})};jQuery.bt.vars={clickAnywhereStack:[],closeWhenOpenStack:[]};jQuery.bt.docClick=function(e){if(!e){var e=window.event}if(!$(e.target).parents().andSelf().filter(".bt-wrapper, .bt-active").length&&jQuery.bt.vars.clickAnywhereStack.length){$(jQuery.bt.vars.clickAnywhereStack).btOff();$(document).unbind("click",jQuery.bt.docClick)}};jQuery.bt.defaults={trigger:"hover",clickAnywhereToClose:true,closeWhenOthersOpen:false,shrinkToFit:false,width:"200px",padding:"10px",spikeGirth:10,spikeLength:15,overlap:0,overlay:false,killTitle:true,textzIndex:9999,boxzIndex:9998,wrapperzIndex:9997,offsetParent:null,positions:["most"],fill:"rgb(255, 255, 102)",windowMargin:10,strokeWidth:1,strokeStyle:"#000",cornerRadius:5,centerPointX:0.5,centerPointY:0.5,shadow:false,shadowOffsetX:2,shadowOffsetY:2,shadowBlur:3,shadowColor:"#000",shadowOverlap:false,noShadowOpts:{strokeStyle:"#999"},cssClass:"",cssStyles:{},activeClass:"bt-active",contentSelector:"$(this).attr('title')",ajaxPath:null,ajaxError:"<strong>ERROR:</strong> <em>%error</em>",ajaxLoading:"<blink>Loading...</blink>",ajaxData:{},ajaxType:"GET",ajaxCache:true,ajaxOpts:{},preBuild:function(){},preShow:function(box){},showTip:function(box){$(box).show()},postShow:function(box){},preHide:function(box){},hideTip:function(box,callback){$(box).hide();callback()},postHide:function(){},hoverIntentOpts:{interval:300,timeout:500}};jQuery.bt.options={}})(jQuery);

var visural_inputHints=[];function VisuralInputHint(a,d,b,c){this.inputId=a;this.hintText=d;this.hintStyle=b;this.entryStyle=c;this.handleFocus=function(){if(jQuery("#"+this.inputId).val()===this.hintText){jQuery("#"+this.inputId).attr("style",this.entryStyle);jQuery("#"+this.inputId).val("")}};this.handleBlur=function(){if(!jQuery("#"+this.inputId).val()){jQuery("#"+this.inputId).attr("style",this.hintStyle);jQuery("#"+this.inputId).val(this.hintText)}}};