var win = (navigator.userAgent.indexOf("Win")!=-1);
var mac = (navigator.userAgent.indexOf("Mac")!=-1);
var explorer = (navigator.appName.indexOf("Explorer")!=-1);
var netscape = (navigator.appName.indexOf("Netscape")!=-1);
var version = (navigator.appVersion.charAt(0));

if (win && explorer) {
	document.write('<link rel="stylesheet" type="text/css" href="/css/styleWin.css">');
} else if (win && netscape && version=="5") {
	document.write('<link rel="stylesheet" type="text/css" href="/css/styleWin.css">');
} else if (win && netscape && version=="4") {
	document.write('<link rel="stylesheet" type="text/css" href="/css/styleWinNS4.css">');
} else if (mac) {
	document.write('<link rel="stylesheet" type="text/css" href="/css/styleMac.css">');
} else {
	document.write('<link rel="stylesheet" type="text/css" href="/css/styleWin.css">');
}