var plat = navigator.platform
var bName = navigator.appName
var bVer = parseInt(navigator.appVersion);

if ((bVer <= 3) && (bName=="Netscape" || "Microsoft Internet Explorer"))
{
   alert("You are useing " + bName + " " + bVer + ". För att kunna se denna sida ordentligt krävs det att du uppgraderar din webläsare.");
} 
else
{
	if ((plat=="Win32") && (bName=="Microsoft Internet Explorer"))
		document.write("<LINK REL=stylesheet TYPE='text/css' HREF='css/ie_win.css'>");
	else if ((plat=="Win32") && (bName=="Netscape"))
		document.write("<LINK REL=stylesheet TYPE='text/css' HREF='css/ns_win.css'>");
	else if ((plat=="MacPPC") && (bName=="Netscape"))
		document.write("<LINK REL=stylesheet TYPE='text/css' HREF='css/ns_mac.css'>");
	else if ((plat=="MacPPC") && (bName=="Microsoft Internet Explorer"))
		document.write("<LINK REL=stylesheet TYPE='text/css' HREF='css/ie_mac.css'>");
}