userAgent = navigator.userAgent.toLowerCase();

if (navigator.platform == "Win32") { var win = 1};
if (navigator.platform == "MacPPC") { var mac = 1};

	if (win) { document.write('<link rel="stylesheet" href="css/win.css" type="text/css" />'); }
	if (mac) { document.write('<link rel="stylesheet" href="css/mac.css" type="text/css" />'); }