//select proper css
		
		var NavBar_Supported = false;
		sAgent = navigator.userAgent;
		bIsMac = sAgent.indexOf("Mac") > -1;
		bIsIE = sAgent.indexOf("MSIE") > -1;
		bIsIE4 = sAgent.indexOf("IE 4") > -1;
		bIsIE5 = sAgent.indexOf("IE 5") > -1;
		bIsIE6 = sAgent.indexOf("IE 6") > -1;
		bIsNav = sAgent.indexOf("Mozilla") > -1 && !bIsIE;
		bDoesAll = (bIsIE4 || bIsIE5 || bIsIE6) && !bIsMac;
		
		document.write("<link rel=stylesheet href=\"/styles/base.css\" type=\"text/css\">");
/*
		if ((bIsMac && bIsNav) || (bIsMac && bIsIE4))
		{
			document.write("<link rel=stylesheet href=\"/styles/navmac.css\" type=\"text/css\">");
		}
		else
		{
			document.write("<link rel=stylesheet href=\"/styles/ie4.css\" type=\"text/css\">");
		}
		if (bIsMac)
		{
			document.write("<link rel=stylesheet href=\"/styles/menubar_ns.css\" type=\"text/css\">");
		}
		else
		{
			document.write("<link rel=stylesheet href=\"/styles/navbar.css\" type=\"text/css\">");
		}
		if (bDoesAll)
		{
			NavBar_Supported = true;
		}
*/