/*!	SWFObject v2.0 <http://code.google.com/p/swfobject/>
	Copyright (c) 2007 Geoff Stearns, Michael Williams, and Bobby van der Sluis
	This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/

var swfobject = function() {
	
	var UNDEF = "undefined",
		OBJECT = "object",
		SHOCKWAVE_FLASH = "Shockwave Flash",
		SHOCKWAVE_FLASH_AX = "ShockwaveFlash.ShockwaveFlash",
		FLASH_MIME_TYPE = "application/x-shockwave-flash",
		EXPRESS_INSTALL_ID = "SWFObjectExprInst",
		
		win = window,
		doc = document,
		nav = navigator,
		
		domLoadFnArr = [],
		regObjArr = [],
		timer = null,
		storedAltContent = null,
		storedAltContentId = null,
		isDomLoaded = false,
		isExpressInstallActive = false;
	
	/* Centralized function for browser feature detection
		- Proprietary feature detection (conditional compiling) is used to detect Internet Explorer's features
		- User agent string detection is only used when no alternative is possible
		- Is executed directly for optimal performance
	*/	
	var ua = function() {
		var w3cdom = typeof doc.getElementById != UNDEF && typeof doc.getElementsByTagName != UNDEF && typeof doc.createElement != UNDEF && typeof doc.appendChild != UNDEF && typeof doc.replaceChild != UNDEF && typeof doc.removeChild != UNDEF && typeof doc.cloneNode != UNDEF,
			playerVersion = [0,0,0],
			d = null;
		if (typeof nav.plugins != UNDEF && typeof nav.plugins[SHOCKWAVE_FLASH] == OBJECT) {
			d = nav.plugins[SHOCKWAVE_FLASH].description;
			if (d) {
				d = d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
				playerVersion[0] = parseInt(d.replace(/^(.*)\..*$/, "$1"), 10);
				playerVersion[1] = parseInt(d.replace(/^.*\.(.*)\s.*$/, "$1"), 10);
				playerVersion[2] = /r/.test(d) ? parseInt(d.replace(/^.*r(.*)$/, "$1"), 10) : 0;
			}
		}
		else if (typeof win.ActiveXObject != UNDEF) {
			var a = null, fp6Crash = false;
			try {
				a = new ActiveXObject(SHOCKWAVE_FLASH_AX + ".7");
			}
			catch(e) {
				try { 
					a = new ActiveXObject(SHOCKWAVE_FLASH_AX + ".6");
					playerVersion = [6,0,21];
					a.AllowScriptAccess = "always";  // Introduced in fp6.0.47
				}
				catch(e) {
					if (playerVersion[0] == 6) {
						fp6Crash = true;
					}
				}
				if (!fp6Crash) {
					try {
						a = new ActiveXObject(SHOCKWAVE_FLASH_AX);
					}
					catch(e) {}
				}
			}
			if (!fp6Crash && a) { // a will return null when ActiveX is disabled
				try {
					d = a.GetVariable("$version");  // Will crash fp6.0.21/23/29
					if (d) {
						d = d.split(" ")[1].split(",");
						playerVersion = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
					}
				}
				catch(e) {}
			}
		}
		var u = nav.userAgent.toLowerCase(),
			p = nav.platform.toLowerCase(),
			webkit = /webkit/.test(u) ? parseFloat(u.replace(/^.*webkit\/(\d+(\.\d+)?).*$/, "$1")) : false, // returns either the webkit version or false if not webkit
			ie = false,
			windows = p ? /win/.test(p) : /win/.test(u),
			mac = p ? /mac/.test(p) : /mac/.test(u);
		/*@cc_on
			ie = true;
			@if (@_win32)
				windows = true;
			@elif (@_mac)
				mac = true;
			@end
		@*/
		return { w3cdom:w3cdom, pv:playerVersion, webkit:webkit, ie:ie, win:windows, mac:mac };
	}();

	/* Cross-browser onDomLoad
		- Based on Dean Edwards' solution: http://dean.edwards.name/weblog/2006/06/again/
		- Will fire an event as soon as the DOM of a page is loaded (supported by Gecko based browsers - like Firefox -, IE, Opera9+, Safari)
	*/ 
	var onDomLoad = function() {
		if (!ua.w3cdom) {
			return;
		}
		addDomLoadEvent(main);
		if (ua.ie && ua.win) {
			try {  // Avoid a possible Operation Aborted error
				doc.write("<scr" + "ipt id=__ie_ondomload defer=true src=//:></scr" + "ipt>"); // String is split into pieces to avoid Norton AV to add code that can cause errors 
				var s = getElementById("__ie_ondomload");
				if (s) {
					s.onreadystatechange = function() {
						if (this.readyState == "complete") {
							this.parentNode.removeChild(this);
							callDomLoadFunctions();
						}
					};
				}
			}
			catch(e) {}
		}
		if (ua.webkit && typeof doc.readyState != UNDEF) {
			timer = setInterval(function() { if (/loaded|complete/.test(doc.readyState)) { callDomLoadFunctions(); }}, 10);
		}
		if (typeof doc.addEventListener != UNDEF) {
			doc.addEventListener("DOMContentLoaded", callDomLoadFunctions, null);
		}
		addLoadEvent(callDomLoadFunctions);
	}();
	
	function callDomLoadFunctions() {
		if (isDomLoaded) {
			return;
		}
		if (ua.ie && ua.win) { // Test if we can really add elements to the DOM; we don't want to fire it too early
			var s = createElement("span");
			try { // Avoid a possible Operation Aborted error
				var t = doc.getElementsByTagName("body")[0].appendChild(s);
				t.parentNode.removeChild(t);
			}
			catch (e) {
				return;
			}
		}
		isDomLoaded = true;
		if (timer) {
			clearInterval(timer);
			timer = null;
		}
		var dl = domLoadFnArr.length;
		for (var i = 0; i < dl; i++) {
			domLoadFnArr[i]();
		}
	}
	
	function addDomLoadEvent(fn) {
		if (isDomLoaded) {
			fn();
		}
		else { 
			domLoadFnArr[domLoadFnArr.length] = fn; // Array.push() is only available in IE5.5+
		}
	}
	
	/* Cross-browser onload
		- Based on James Edwards' solution: http://brothercake.com/site/resources/scripts/onload/
		- Will fire an event as soon as a web page including all of its assets are loaded 
	 */
	function addLoadEvent(fn) {
		if (typeof win.addEventListener != UNDEF) {
			win.addEventListener("load", fn, false);
		}
		else if (typeof doc.addEventListener != UNDEF) {
			doc.addEventListener("load", fn, false);
		}
		else if (typeof win.attachEvent != UNDEF) {
			win.attachEvent("onload", fn);
		}
		else if (typeof win.onload == "function") {
			var fnOld = win.onload;
			win.onload = function() {
				fnOld();
				fn();
			};
		}
		else {
			win.onload = fn;
		}
	}
	
	/* Main function
		- Will preferably execute onDomLoad, otherwise onload (as a fallback)
	*/
	function main() { // Static publishing only
		var rl = regObjArr.length;
		for (var i = 0; i < rl; i++) { // For each registered object element
			var id = regObjArr[i].id;
			if (ua.pv[0] > 0) {
				var obj = getElementById(id);
				if (obj) {
					regObjArr[i].width = obj.getAttribute("width") ? obj.getAttribute("width") : "0";
					regObjArr[i].height = obj.getAttribute("height") ? obj.getAttribute("height") : "0";
					if (hasPlayerVersion(regObjArr[i].swfVersion)) { // Flash plug-in version >= Flash content version: Houston, we have a match!
						if (ua.webkit && ua.webkit < 312) { // Older webkit engines ignore the object element's nested param elements
							fixParams(obj);
						}
						setVisibility(id, true);
					}
					else if (regObjArr[i].expressInstall && !isExpressInstallActive && hasPlayerVersion("6.0.65") && (ua.win || ua.mac)) { // Show the Adobe Express Install dialog if set by the web page author and if supported (fp6.0.65+ on Win/Mac OS only)
						showExpressInstall(regObjArr[i]);
					}
					else { // Flash plug-in and Flash content version mismatch: display alternative content instead of Flash content
						displayAltContent(obj);
					}
				}
			}
			else {  // If no fp is installed, we let the object element do its job (show alternative content)
				setVisibility(id, true);
			}
		}
	}
	
	/* Fix nested param elements, which are ignored by older webkit engines
		- This includes Safari up to and including version 1.2.2 on Mac OS 10.3
		- Fall back to the proprietary embed element
	*/
	function fixParams(obj) {
		var nestedObj = obj.getElementsByTagName(OBJECT)[0];
		if (nestedObj) {
			var e = createElement("embed"), a = nestedObj.attributes;
			if (a) {
				var al = a.length;
				for (var i = 0; i < al; i++) {
					if (a[i].nodeName.toLowerCase() == "data") {
						e.setAttribute("src", a[i].nodeValue);
					}
					else {
						e.setAttribute(a[i].nodeName, a[i].nodeValue);
					}
				}
			}
			var c = nestedObj.childNodes;
			if (c) {
				var cl = c.length;
				for (var j = 0; j < cl; j++) {
					if (c[j].nodeType == 1 && c[j].nodeName.toLowerCase() == "param") {
						e.setAttribute(c[j].getAttribute("name"), c[j].getAttribute("value"));
					}
				}
			}
			obj.parentNode.replaceChild(e, obj);
		}
	}
	
	/* Fix hanging audio/video threads and force open sockets and NetConnections to disconnect
		- Occurs when unloading a web page in IE using fp8+ and innerHTML/outerHTML
		- Dynamic publishing only
	*/
	function fixObjectLeaks(id) {
		if (ua.ie && ua.win && hasPlayerVersion("8.0.0")) {
			win.attachEvent("onunload", function () {
				var obj = getElementById(id);
				if (obj) {
					for (var i in obj) {
						if (typeof obj[i] == "function") {
							obj[i] = function() {};
						}
					}
					obj.parentNode.removeChild(obj);
				}
			});
		}
	}
	
	/* Show the Adobe Express Install dialog
		- Reference: http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6a253b75
	*/
	function showExpressInstall(regObj) {
		isExpressInstallActive = true;
		var obj = getElementById(regObj.id);
		if (obj) {
			if (regObj.altContentId) {
				var ac = getElementById(regObj.altContentId);
				if (ac) {
					storedAltContent = ac;
					storedAltContentId = regObj.altContentId;
				}
			}
			else {
				storedAltContent = abstractAltContent(obj);
			}
			if (!(/%$/.test(regObj.width)) && parseInt(regObj.width, 10) < 310) {
				regObj.width = "310";
			}
			if (!(/%$/.test(regObj.height)) && parseInt(regObj.height, 10) < 137) {
				regObj.height = "137";
			}
			doc.title = doc.title.slice(0, 47) + " - Flash Player Installation";
			var pt = ua.ie && ua.win ? "ActiveX" : "PlugIn",
				dt = doc.title,
				fv = "MMredirectURL=" + win.location + "&MMplayerType=" + pt + "&MMdoctitle=" + dt,
				replaceId = regObj.id;
			// For IE when a SWF is loading (AND: not available in cache) wait for the onload event to fire to remove the original object element
			// In IE you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work
			if (ua.ie && ua.win && obj.readyState != 4) {
				var newObj = createElement("div");
				replaceId += "SWFObjectNew";
				newObj.setAttribute("id", replaceId);
				obj.parentNode.insertBefore(newObj, obj); // Insert placeholder div that will be replaced by the object element that loads expressinstall.swf
				obj.style.display = "none";
				win.attachEvent("onload", function() { obj.parentNode.removeChild(obj); });
			}
			createSWF({ data:regObj.expressInstall, id:EXPRESS_INSTALL_ID, width:regObj.width, height:regObj.height }, { flashvars:fv }, replaceId);
		}
	}
	
	/* Functions to abstract and display alternative content
	*/
	function displayAltContent(obj) {
		if (ua.ie && ua.win && obj.readyState != 4) {
			// For IE when a SWF is loading (AND: not available in cache) wait for the onload event to fire to remove the original object element
			// In IE you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work
			var el = createElement("div");
			obj.parentNode.insertBefore(el, obj); // Insert placeholder div that will be replaced by the alternative content
			el.parentNode.replaceChild(abstractAltContent(obj), el);
			obj.style.display = "none";
			win.attachEvent("onload", function() { obj.parentNode.removeChild(obj); });
		}
		else {
			obj.parentNode.replaceChild(abstractAltContent(obj), obj);
		}
	}	

	function abstractAltContent(obj) {
		var ac = createElement("div");
		if (ua.win && ua.ie) {
			ac.innerHTML = obj.innerHTML;
		}
		else {
			var nestedObj = obj.getElementsByTagName(OBJECT)[0];
			if (nestedObj) {
				var c = nestedObj.childNodes;
				if (c) {
					var cl = c.length;
					for (var i = 0; i < cl; i++) {
						if (!(c[i].nodeType == 1 && c[i].nodeName.toLowerCase() == "param") && !(c[i].nodeType == 8)) {
							ac.appendChild(c[i].cloneNode(true));
						}
					}
				}
			}
		}
		return ac;
	}
	
	/* Cross-browser dynamic SWF creation
	*/
	function createSWF(attObj, parObj, id) {
		var r, el = getElementById(id);
		if (typeof attObj.id == UNDEF) { // if no 'id' is defined for the object element, it will inherit the 'id' from the alternative content
			attObj.id = id;
		}
		if (ua.ie && ua.win) { // IE, the object element and W3C DOM methods do not combine: fall back to outerHTML
			var att = "";
			for (var i in attObj) {
				if (attObj[i] != Object.prototype[i]) { // Filter out prototype additions from other potential libraries, like Object.prototype.toJSONString = function() {}
					if (i == "data") {
						parObj.movie = attObj[i];
					}
					else if (i.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
						att += ' class="' + attObj[i] + '"';
					}
					else if (i != "classid") {
						att += ' ' + i + '="' + attObj[i] + '"';
					}
				}
			}
			var par = "";
			for (var j in parObj) {
				if (parObj[j] != Object.prototype[j]) { // Filter out prototype additions from other potential libraries
					par += '<param name="' + j + '" value="' + parObj[j] + '" />';
				}
			}
			el.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + att + '>' + par + '</object>';
			fixObjectLeaks(attObj.id); // This bug affects dynamic publishing only
			r = getElementById(attObj.id);	
		}
		else if (ua.webkit && ua.webkit < 312) { // Older webkit engines ignore the object element's nested param elements: fall back to the proprietary embed element
			var e = createElement("embed");
			e.setAttribute("type", FLASH_MIME_TYPE);
			for (var k in attObj) {
				if (attObj[k] != Object.prototype[k]) { // Filter out prototype additions from other potential libraries
					if (k == "data") {
						e.setAttribute("src", attObj[k]);
					}
					else if (k.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
						e.setAttribute("class", attObj[k]);
					}
					else if (k != "classid") { // Filter out IE specific attribute
						e.setAttribute(k, attObj[k]);
					}
				}
			}
			for (var l in parObj) {
				if (parObj[l] != Object.prototype[l]) { // Filter out prototype additions from other potential libraries
					if (l != "movie") { // Filter out IE specific param element
						e.setAttribute(l, parObj[l]);
					}
				}
			}
			el.parentNode.replaceChild(e, el);
			r = e;
		}
		else { // Well-behaving browsers
			var o = createElement(OBJECT);
			o.setAttribute("type", FLASH_MIME_TYPE);
			for (var m in attObj) {
				if (attObj[m] != Object.prototype[m]) { // Filter out prototype additions from other potential libraries
					if (m.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
						o.setAttribute("class", attObj[m]);
					}
					else if (m != "classid") { // Filter out IE specific attribute
						o.setAttribute(m, attObj[m]);
					}
				}
			}
			for (var n in parObj) {
				if (parObj[n] != Object.prototype[n] && n != "movie") { // Filter out prototype additions from other potential libraries and IE specific param element
					createObjParam(o, n, parObj[n]);
				}
			}
			el.parentNode.replaceChild(o, el);
			r = o;
		}
		return r;
	}
	
	function createObjParam(el, pName, pValue) {
		var p = createElement("param");
		p.setAttribute("name", pName);	
		p.setAttribute("value", pValue);
		el.appendChild(p);
	}
	
	function getElementById(id) {
		return doc.getElementById(id);
	}
	
	function createElement(el) {
		return doc.createElement(el);
	}
	
	function hasPlayerVersion(rv) {
		var pv = ua.pv, v = rv.split(".");
		v[0] = parseInt(v[0], 10);
		v[1] = parseInt(v[1], 10);
		v[2] = parseInt(v[2], 10);
		return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
	}
	
	/* Cross-browser dynamic CSS creation
		- Based on Bobby van der Sluis' solution: http://www.bobbyvandersluis.com/articles/dynamicCSS.php
	*/	
	function createCSS(sel, decl) {
		if (ua.ie && ua.mac) {
			return;
		}
		var h = doc.getElementsByTagName("head")[0], s = createElement("style");
		s.setAttribute("type", "text/css");
		s.setAttribute("media", "screen");
		if (!(ua.ie && ua.win) && typeof doc.createTextNode != UNDEF) {
			s.appendChild(doc.createTextNode(sel + " {" + decl + "}"));
		}
		h.appendChild(s);
		if (ua.ie && ua.win && typeof doc.styleSheets != UNDEF && doc.styleSheets.length > 0) {
			var ls = doc.styleSheets[doc.styleSheets.length - 1];
			if (typeof ls.addRule == OBJECT) {
				ls.addRule(sel, decl);
			}
		}
	}
	
	function setVisibility(id, isVisible) {
		var v = isVisible ? "visible" : "hidden";
		if (isDomLoaded) {
			getElementById(id).style.visibility = v;
		}
		else {
			createCSS("#" + id, "visibility:" + v);
		}
	}
	
	function getTargetVersion(obj) {
	    if (!obj)
	        return 0;
		var c = obj.childNodes;
		var cl = c.length;
		for (var i = 0; i < cl; i++) {
			if (c[i].nodeType == 1 && c[i].nodeName.toLowerCase() == "object") {
			    c = c[i].childNodes;
			    cl = c.length;
			    i = 0;
			}     
			if (c[i].nodeType == 1 && c[i].nodeName.toLowerCase() == "param" && c[i].getAttribute("name") == "swfversion") {
			   return c[i].getAttribute("value"); 
			}
		}
		return 0;
	}
    
	function getExpressInstall(obj) {
	    if (!obj)
	        return "";
		var c = obj.childNodes;
		var cl = c.length;
		for (var i = 0; i < cl; i++) {
			if (c[i].nodeType == 1 && c[i].nodeName.toLowerCase() == "object") {
			    c = c[i].childNodes;
			    cl = c.length;
			    i = 0;
			}     
			if (c[i].nodeType == 1 && c[i].nodeName.toLowerCase() == "param" && c[i].getAttribute("name") == "expressinstall") { 
			    return c[i].getAttribute("value"); 
			}	       
		}
		return "";
	}
    
	return {
		/* Public API
			- Reference: http://code.google.com/p/swfobject/wiki/SWFObject_2_0_documentation
		*/ 
		registerObject: function(objectIdStr, swfVersionStr, xiSwfUrlStr) {
			if (!ua.w3cdom || !objectIdStr) {
				return;
			}
			var obj = document.getElementById(objectIdStr);
			var xi = getExpressInstall(obj);
			var regObj = {};
			regObj.id = objectIdStr;
			regObj.swfVersion = swfVersionStr ? swfVersionStr : getTargetVersion(obj);
			regObj.expressInstall = xiSwfUrlStr ? xiSwfUrlStr : ((xi != "") ? xi : false);
			regObjArr[regObjArr.length] = regObj;
			setVisibility(objectIdStr, false);
		},
		
		getObjectById: function(objectIdStr) {
			var r = null;
			if (ua.w3cdom && isDomLoaded) {
				var o = getElementById(objectIdStr);
				if (o) {
					var n = o.getElementsByTagName(OBJECT)[0];
					if (!n || (n && typeof o.SetVariable != UNDEF)) {
				    	r = o;
					}
					else if (typeof n.SetVariable != UNDEF) {
						r = n;
					}
				}
			}
			return r;
		},
		
		embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj) {
			if (!ua.w3cdom || !swfUrlStr || !replaceElemIdStr || !widthStr || !heightStr || !swfVersionStr) {
				return;
			}
			widthStr += ""; // Auto-convert to string to make it idiot proof
			heightStr += "";
			if (hasPlayerVersion(swfVersionStr)) {
				setVisibility(replaceElemIdStr, false);
				var att = (typeof attObj == OBJECT) ? attObj : {};
				att.data = swfUrlStr;
				att.width = widthStr;
				att.height = heightStr;
				var par = (typeof parObj == OBJECT) ? parObj : {};
				if (typeof flashvarsObj == OBJECT) {
					for (var i in flashvarsObj) {
						if (flashvarsObj[i] != Object.prototype[i]) { // Filter out prototype additions from other potential libraries
							if (typeof par.flashvars != UNDEF) {
								par.flashvars += "&" + i + "=" + flashvarsObj[i];
							}
							else {
								par.flashvars = i + "=" + flashvarsObj[i];
							}
						}
					}
				}
				addDomLoadEvent(function() {
					createSWF(att, par, replaceElemIdStr);
					if (att.id == replaceElemIdStr) {
						setVisibility(replaceElemIdStr, true);
					}
				});
			}
			else if (xiSwfUrlStr && !isExpressInstallActive && hasPlayerVersion("6.0.65") && (ua.win || ua.mac)) {
				setVisibility(replaceElemIdStr, false);
				addDomLoadEvent(function() {
					var regObj = {};
					regObj.id = regObj.altContentId = replaceElemIdStr;
					regObj.width = widthStr;
					regObj.height = heightStr;
					regObj.expressInstall = xiSwfUrlStr;
					showExpressInstall(regObj);
				});
			}
		},
		
		getFlashPlayerVersion: function() {
			return { major:ua.pv[0], minor:ua.pv[1], release:ua.pv[2] };
		},
		
		hasFlashPlayerVersion:hasPlayerVersion,
		
		createSWF: function(attObj, parObj, replaceElemIdStr) {
			if (ua.w3cdom && isDomLoaded) {
				return createSWF(attObj, parObj, replaceElemIdStr);
			}
			else {
				return undefined;
			}
		},
		
		createCSS: function(sel, decl) {
			if (ua.w3cdom) {
				createCSS(sel, decl);
			}
		},
		
		addDomLoadEvent:addDomLoadEvent,
		
		addLoadEvent:addLoadEvent,
		
		getQueryParamValue: function(param) {
			var q = doc.location.search || doc.location.hash;
			if (param == null) {
				return q;
			}
		 	if(q) {
				var pairs = q.substring(1).split("&");
				for (var i = 0; i < pairs.length; i++) {
					if (pairs[i].substring(0, pairs[i].indexOf("=")) == param) {
						return pairs[i].substring((pairs[i].indexOf("=") + 1));
					}
				}
			}
			return "";
		},
		
		// For internal usage only
		expressInstallCallback: function() {
			if (isExpressInstallActive && storedAltContent) {
				var obj = getElementById(EXPRESS_INSTALL_ID);
				if (obj) {
					obj.parentNode.replaceChild(storedAltContent, obj);
					if (storedAltContentId) {
						setVisibility(storedAltContentId, true);
						if (ua.ie && ua.win) {
							storedAltContent.style.display = "block";
						}
					}
					storedAltContent = null;
					storedAltContentId = null;
					isExpressInstallActive = false;
				}
			} 
		}
		
	};

}();
var Spry;
if (!Spry) Spry = {};
if (!Spry.Widget) Spry.Widget = {};

Spry.Widget.CollapsiblePanel = function(element, opts)
{
	this.element = this.getElement(element);
	this.focusElement = null;
	this.hoverClass = "CollapsiblePanelTabHover";
	this.openClass = "CollapsiblePanelOpen";
	this.closedClass = "CollapsiblePanelClosed";
	this.focusedClass = "CollapsiblePanelFocused";
	this.enableAnimation = true;
	this.enableKeyboardNavigation = true;
	this.animator = null;
	this.hasFocus = false;
	this.contentIsOpen = true;

	this.openPanelKeyCode = Spry.Widget.CollapsiblePanel.KEY_DOWN;
	this.closePanelKeyCode = Spry.Widget.CollapsiblePanel.KEY_UP;

	Spry.Widget.CollapsiblePanel.setOptions(this, opts);

	this.attachBehaviors();
};

Spry.Widget.CollapsiblePanel.prototype.getElement = function(ele)
{
	if (ele && typeof ele == "string")
		return document.getElementById(ele);
	return ele;
};

Spry.Widget.CollapsiblePanel.prototype.addClassName = function(ele, className)
{
	if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) != -1))
		return;
	ele.className += (ele.className ? " " : "") + className;
};

Spry.Widget.CollapsiblePanel.prototype.removeClassName = function(ele, className)
{
	if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) == -1))
		return;
	ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
};

Spry.Widget.CollapsiblePanel.prototype.hasClassName = function(ele, className)
{
	if (!ele || !className || !ele.className || ele.className.search(new RegExp("\\b" + className + "\\b")) == -1)
		return false;
	return true;
};

Spry.Widget.CollapsiblePanel.prototype.setDisplay = function(ele, display)
{
	if( ele )
		ele.style.display = display;
};

Spry.Widget.CollapsiblePanel.setOptions = function(obj, optionsObj, ignoreUndefinedProps)
{
	if (!optionsObj)
		return;
	for (var optionName in optionsObj)
	{
		if (ignoreUndefinedProps && optionsObj[optionName] == undefined)
			continue;
		obj[optionName] = optionsObj[optionName];
	}
};

Spry.Widget.CollapsiblePanel.prototype.onTabMouseOver = function(e)
{
	this.addClassName(this.getTab(), this.hoverClass);
	return false;
};

Spry.Widget.CollapsiblePanel.prototype.onTabMouseOut = function(e)
{
	this.removeClassName(this.getTab(), this.hoverClass);
	return false;
};

Spry.Widget.CollapsiblePanel.prototype.open = function()
{
	this.contentIsOpen = true;
	if (this.enableAnimation)
	{
		if (this.animator)
			this.animator.stop();
		this.animator = new Spry.Widget.CollapsiblePanel.PanelAnimator(this, true, { duration: this.duration, fps: this.fps, transition: this.transition });
		this.animator.start();
	}
	else
		this.setDisplay(this.getContent(), "block");

	this.removeClassName(this.element, this.closedClass);
	this.addClassName(this.element, this.openClass);
};

Spry.Widget.CollapsiblePanel.prototype.close = function()
{
	this.contentIsOpen = false;
	if (this.enableAnimation)
	{
		if (this.animator)
			this.animator.stop();
		this.animator = new Spry.Widget.CollapsiblePanel.PanelAnimator(this, false, { duration: this.duration, fps: this.fps, transition: this.transition });
		this.animator.start();
	}
	else
		this.setDisplay(this.getContent(), "none");

	this.removeClassName(this.element, this.openClass);
	this.addClassName(this.element, this.closedClass);
};

Spry.Widget.CollapsiblePanel.prototype.onTabClick = function(e)
{
	if (this.isOpen())
		this.close();
	else
		this.open();

	this.focus();

	return this.stopPropagation(e);
};

Spry.Widget.CollapsiblePanel.prototype.onFocus = function(e)
{
	this.hasFocus = true;
	this.addClassName(this.element, this.focusedClass);
	return false;
};

Spry.Widget.CollapsiblePanel.prototype.onBlur = function(e)
{
	this.hasFocus = false;
	this.removeClassName(this.element, this.focusedClass);
	return false;
};

Spry.Widget.CollapsiblePanel.KEY_UP = 38;
Spry.Widget.CollapsiblePanel.KEY_DOWN = 40;

Spry.Widget.CollapsiblePanel.prototype.onKeyDown = function(e)
{
	var key = e.keyCode;
	if (!this.hasFocus || (key != this.openPanelKeyCode && key != this.closePanelKeyCode))
		return true;

	if (this.isOpen() && key == this.closePanelKeyCode)
		this.close();
	else if ( key == this.openPanelKeyCode)
		this.open();
	
	return this.stopPropagation(e);
};

Spry.Widget.CollapsiblePanel.prototype.stopPropagation = function(e)
{
	if (e.preventDefault) e.preventDefault();
	else e.returnValue = false;
	if (e.stopPropagation) e.stopPropagation();
	else e.cancelBubble = true;
	return false;
};

Spry.Widget.CollapsiblePanel.prototype.attachPanelHandlers = function()
{
	var tab = this.getTab();
	if (!tab)
		return;

	var self = this;
	Spry.Widget.CollapsiblePanel.addEventListener(tab, "click", function(e) { return self.onTabClick(e); }, false);
	Spry.Widget.CollapsiblePanel.addEventListener(tab, "mouseover", function(e) { return self.onTabMouseOver(e); }, false);
	Spry.Widget.CollapsiblePanel.addEventListener(tab, "mouseout", function(e) { return self.onTabMouseOut(e); }, false);

	if (this.enableKeyboardNavigation)
	{
		// XXX: IE doesn't allow the setting of tabindex dynamically. This means we can't
		// rely on adding the tabindex attribute if it is missing to enable keyboard navigation
		// by default.

		// Find the first element within the tab container that has a tabindex or the first
		// anchor tag.
		
		var tabIndexEle = null;
		var tabAnchorEle = null;

		this.preorderTraversal(tab, function(node) {
			if (node.nodeType == 1 /* NODE.ELEMENT_NODE */)
			{
				var tabIndexAttr = tab.attributes.getNamedItem("tabindex");
				if (tabIndexAttr)
				{
					tabIndexEle = node;
					return true;
				}
				if (!tabAnchorEle && node.nodeName.toLowerCase() == "a")
					tabAnchorEle = node;
			}
			return false;
		});

		if (tabIndexEle)
			this.focusElement = tabIndexEle;
		else if (tabAnchorEle)
			this.focusElement = tabAnchorEle;

		if (this.focusElement)
		{
			Spry.Widget.CollapsiblePanel.addEventListener(this.focusElement, "focus", function(e) { return self.onFocus(e); }, false);
			Spry.Widget.CollapsiblePanel.addEventListener(this.focusElement, "blur", function(e) { return self.onBlur(e); }, false);
			Spry.Widget.CollapsiblePanel.addEventListener(this.focusElement, "keydown", function(e) { return self.onKeyDown(e); }, false);
		}
	}
};

Spry.Widget.CollapsiblePanel.addEventListener = function(element, eventType, handler, capture)
{
	try
	{
		if (element.addEventListener)
			element.addEventListener(eventType, handler, capture);
		else if (element.attachEvent)
			element.attachEvent("on" + eventType, handler);
	}
	catch (e) {}
};

Spry.Widget.CollapsiblePanel.prototype.preorderTraversal = function(root, func)
{
	var stopTraversal = false;
	if (root)
	{
		stopTraversal = func(root);
		if (root.hasChildNodes())
		{
			var child = root.firstChild;
			while (!stopTraversal && child)
			{
				stopTraversal = this.preorderTraversal(child, func);
				try { child = child.nextSibling; } catch (e) { child = null; }
			}
		}
	}
	return stopTraversal;
};

Spry.Widget.CollapsiblePanel.prototype.attachBehaviors = function()
{
	var panel = this.element;
	var tab = this.getTab();
	var content = this.getContent();

	if (this.contentIsOpen || this.hasClassName(panel, this.openClass))
	{
		this.addClassName(panel, this.openClass);
		this.removeClassName(panel, this.closedClass);
		this.setDisplay(content, "block");
		this.contentIsOpen = true;
	}
	else
	{
		this.removeClassName(panel, this.openClass);
		this.addClassName(panel, this.closedClass);
		this.setDisplay(content, "none");
		this.contentIsOpen = false;
	}

	this.attachPanelHandlers();
};

Spry.Widget.CollapsiblePanel.prototype.getTab = function()
{
	return this.getElementChildren(this.element)[0];
};

Spry.Widget.CollapsiblePanel.prototype.getContent = function()
{
	return this.getElementChildren(this.element)[1];
};


Spry.Widget.CollapsiblePanel.prototype.isOpen = function()
{
	return this.contentIsOpen;
};

Spry.Widget.CollapsiblePanel.prototype.getElementChildren = function(element)
{
	var children = [];
	var child = element.firstChild;
	while (child)
	{
		if (child.nodeType == 1 /* Node.ELEMENT_NODE */)
			children.push(child);
		child = child.nextSibling;
	}
	return children;
};

Spry.Widget.CollapsiblePanel.prototype.focus = function()
{
	if (this.focusElement && this.focusElement.focus)
		this.focusElement.focus();
};

/////////////////////////////////////////////////////

Spry.Widget.CollapsiblePanel.PanelAnimator = function(panel, doOpen, opts)
{
	this.timer = null;
	this.interval = 0;

	this.fps = 60;
	this.duration = 500;
	this.startTime = 0;

	this.transition = Spry.Widget.CollapsiblePanel.PanelAnimator.defaultTransition;

	this.onComplete = null;

	this.panel = panel;
	this.content = panel.getContent();
	this.doOpen = doOpen;

	Spry.Widget.CollapsiblePanel.setOptions(this, opts, true);

	this.interval = Math.floor(1000 / this.fps);

	var c = this.content;

	var curHeight = c.offsetHeight ? c.offsetHeight : 0;
	this.fromHeight = (doOpen && c.style.display == "none") ? 0 : curHeight;

	if (!doOpen)
		this.toHeight = 0;
	else
	{
		if (c.style.display == "none")
		{
			// The content area is not displayed so in order to calculate the extent
			// of the content inside it, we have to set its display to block.

			c.style.visibility = "hidden";
			c.style.display = "block";
		}

		// Clear the height property so we can calculate
		// the full height of the content we are going to show.

		c.style.height = "";
		this.toHeight = c.offsetHeight;
	}

	this.distance = this.toHeight - this.fromHeight;
	this.overflow = c.style.overflow;

	c.style.height = this.fromHeight + "px";
	c.style.visibility = "visible";
	c.style.overflow = "hidden";
	c.style.display = "block";
};

Spry.Widget.CollapsiblePanel.PanelAnimator.defaultTransition = function(time, begin, finish, duration) { time /= duration; return begin + ((2 - time) * time * finish); };

Spry.Widget.CollapsiblePanel.PanelAnimator.prototype.start = function()
{
	var self = this;
	this.startTime = (new Date).getTime();
	this.timer = setTimeout(function() { self.stepAnimation(); }, this.interval);
};

Spry.Widget.CollapsiblePanel.PanelAnimator.prototype.stop = function()
{
	if (this.timer)
	{
		clearTimeout(this.timer);

		// If we're killing the timer, restore the overflow property.

		this.content.style.overflow = this.overflow;
	}

	this.timer = null;
};

Spry.Widget.CollapsiblePanel.PanelAnimator.prototype.stepAnimation = function()
{
	var curTime = (new Date).getTime();
	var elapsedTime = curTime - this.startTime;

	if (elapsedTime >= this.duration)
	{
		if (!this.doOpen)
			this.content.style.display = "none";
		this.content.style.overflow = this.overflow;
		this.content.style.height = this.toHeight + "px";
		if (this.onComplete)
			this.onComplete();
		return;
	}

	var ht = this.transition(elapsedTime, this.fromHeight, this.distance, this.duration);

	this.content.style.height = ((ht < 0) ? 0 : ht) + "px";

	var self = this;
	this.timer = setTimeout(function() { self.stepAnimation(); }, this.interval);
};

Spry.Widget.CollapsiblePanelGroup = function(element, opts)
{
	this.element = this.getElement(element);
	this.opts = opts;

	this.attachBehaviors();
};

Spry.Widget.CollapsiblePanelGroup.prototype.setOptions = Spry.Widget.CollapsiblePanel.prototype.setOptions;
Spry.Widget.CollapsiblePanelGroup.prototype.getElement = Spry.Widget.CollapsiblePanel.prototype.getElement;
Spry.Widget.CollapsiblePanelGroup.prototype.getElementChildren = Spry.Widget.CollapsiblePanel.prototype.getElementChildren;

Spry.Widget.CollapsiblePanelGroup.prototype.setElementWidget = function(element, widget)
{
	if (!element || !widget)
		return;
	if (!element.spry)
		element.spry = new Object;
	element.spry.collapsiblePanel = widget;
};

Spry.Widget.CollapsiblePanelGroup.prototype.getElementWidget = function(element)
{
	return (element && element.spry && element.spry.collapsiblePanel) ? element.spry.collapsiblePanel : null;
};

Spry.Widget.CollapsiblePanelGroup.prototype.getPanels = function()
{
	if (!this.element)
		return [];
	return this.getElementChildren(this.element);
};

Spry.Widget.CollapsiblePanelGroup.prototype.getPanel = function(panelIndex)
{
	return this.getPanels()[panelIndex];
};

Spry.Widget.CollapsiblePanelGroup.prototype.attachBehaviors = function()
{
	if (!this.element)
		return;

	var cpanels = this.getPanels();
	var numCPanels = cpanels.length;
	for (var i = 0; i < numCPanels; i++)
	{
		var cpanel = cpanels[i];
		this.setElementWidget(cpanel, new Spry.Widget.CollapsiblePanel(cpanel, this.opts));
	}
};

Spry.Widget.CollapsiblePanelGroup.prototype.openPanel = function(panelIndex)
{
	var w = this.getElementWidget(this.getPanel(panelIndex));
	if (w && !w.isOpen())
		w.open();
};

Spry.Widget.CollapsiblePanelGroup.prototype.closePanel = function(panelIndex)
{
	var w = this.getElementWidget(this.getPanel(panelIndex));
	if (w && w.isOpen())
		w.close();
};

Spry.Widget.CollapsiblePanelGroup.prototype.openAllPanels = function()
{
	var cpanels = this.getPanels();
	var numCPanels = cpanels.length;
	for (var i = 0; i < numCPanels; i++)
	{
		var w = this.getElementWidget(cpanels[i]);
		if (w && !w.isOpen())
			w.open();
	}
};

Spry.Widget.CollapsiblePanelGroup.prototype.closeAllPanels = function()
{
	var cpanels = this.getPanels();
	var numCPanels = cpanels.length;
	for (var i = 0; i < numCPanels; i++)
	{
		var w = this.getElementWidget(cpanels[i]);
		if (w && w.isOpen())
			w.close();
	}
};