os= navigator.platform;
browser= navigator.appName;
ie= "Microsoft Internet Explorer";
version= navigator.appVersion.charAt(0);

if ((os == "MacPPC")||(os == "MacIntel")){
	document.write('<link rel="stylesheet" type="text/css" href="/en_US/css/set_mac.css">');
}
else {
	if (browser == ie) {
	document.write('<link rel="stylesheet" type="text/css" href="/en_US/css/set_win.css">');
	}
	else {
	document.write('<link rel="stylesheet" type="text/css" href="/en_US/css/set_others.css">');
	}
}