//Detects browser and display a messagebox if the the browser is old or unknown, meaning not MS Explorer og Netscape.
function onlyNewbrowsers() {

	var browserName = navigator.appName
	var browserVersion = navigator.appVersion;
		
	if(browserName != "Microsoft Internet Explorer")
	{	
		if(browserName == "Netscape")
		{
			if(parseInt(browserVersion) < 5)
				alert("You are using an old Netscape browser. RAMBØLL's webpages are optimized for MS Explorer 5 and Netscape 6 (or newer).");
		}
		else
		{
			alert("You are using an unknown browsertype. RAMBØLL's webpages are optimized for MS Explorer 5 and Netscape 6 (or newer).");
		}
	}
	
}