/*!	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 ? "inherit" : "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;
				}
			} 
		}
		
	};

}();