browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
var agent = navigator.userAgent;

if ((browserVer >3) &&(browserName == "Netscape")) {
	document.writeln("<link rel=stylesheet type=text/css href=\"style.css\">");
}
else {document.writeln("<link rel=stylesheet type=text/css href=\"style.css\">");
}