browser = navigator.appName;
version = navigator.appVersion;
os = navigator.platform;
ie = "Microsoft Internet Explorer";
nn = "Netscape";

if(browser==nn)	document.write('<link rel=stylesheet type="text/css" href="css/netscape4.css" title=master>');
else 		document.write('<link rel=stylesheet type="text/css" href="css/default.css" title=master>');