/**************************************************
 * Utilities
 **************************************************/
 
var userAgent = window.navigator.userAgent;
var browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
var myjsAds = [ 
	{ "url":"http://go.microsoft.com/fwlink/?LinkID=89241&clcid=0x409", "image":"silverlight_300x250.jpg", "xaml":"na" }	
];
var myslAds = [ 
	{ "url":"/learn", "image":"tout_ads_1.jpg", "xaml":"learn" },
	{ "url":"/blogs/MainFeed.aspx", "image":"tout_ads_2.jpg", "xaml":"subscribe" },	
	{ "url":"/forums", "image":"tout_ads_3.jpg", "xaml":"forums" }	
];
	
function ShowAd(notThisAd, cssclass, style)
{
//**************
	var xamlAds = isSL;
//**************
	
	if (notThisAd == "")
		notThisAd = "showall";

	do {
		if (isSL)
			picked = PickAd(myslAds);
		else
			picked = PickAd(myjsAds);
	} while (picked.url.indexOf(notThisAd) != -1);
	
	if (xamlAds && picked.xaml != "na")
	{
		document.write("<div id=\"ad\" " + cssclass + " " + style + "><div class=\"whiteboxtop316\"></div><div class=\"whiteboxmid316\">");

		document.write("<div id=\"xamlHost\">");
		
        document.writeln("<script type=\"text/javascript\">");
 //       document.write("alert(\"" + themeDir + "xaml/" + picked.xaml + ".xaml\");");
        document.write("Sys.Silverlight.createObjectEx({source: \"");
        document.write(themeDir + "xaml/" + picked.xaml);
        document.write(".xaml\", parentElement: document.getElementById(\"xamlHost\"), id: \"");
        document.write(picked.xaml);
        document.write("\", properties: {width: \"300\", height: \"250\", version: \"0.90\", enableHtmlAccess: true }, events: {}});");
        document.writeln("</script>");
        
		document.write("</div>");
		
		document.write("</div><div class=\"whiteboxbottom316\"></div></div>");
	}
	else
	{
		document.write("<div id=\"ad\" " + cssclass + " " + style + "><div class=\"whiteboxtop316\"></div><div class=\"whiteboxmid316\"><a href=\"");
		document.write(picked.url);
		document.write("\"><img src=\"" + themeDir + "images/ads/" + picked.image + "\" width=\"300\" height=\"250\">");
		document.write("</a></div><div class=\"whiteboxbottom316\"></div></div>");
	}
	
	function PickAd(ads)
	{
		var pick = Math.floor(Math.random() * ads.length);
		return ads[pick];
	}
}

function OnXamlLeftButtonUp(sender, Args)
{
	var i = 0;
	do {
		if (myslAds[i].xaml == sender.name)
			window.location.assign(myslAds[i].url);
	} while (++i < myslAds.length);
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function openWindow(sWin,sName,nWidth,nHeight) {
	x = (.5*screen.width) - (nWidth*.5);
	y = (.5*screen.height) - (nHeight*.5);	
	var props = 'width='+nWidth+','+'height='+nHeight+',' + 'screenX=' + x +','+'screenY='+ y + ','+'left='+ x +','+'top='+  y +',toolbar=0,location=0,directories=0,status=1,menubar=0,resizable=0,scrollbars=0';
	oPop = window.open(sWin,sName,props);
}