function GetOsName(){
		var osname = navigator.userAgent.toUpperCase();
		if(osname.indexOf("WIN") >= 0){
		return "/baselworld/2007/css/screen.css";
		} else if(osname.indexOf("MAC") >= 0){
		return "/baselworld/2007/css/screen_mac.css";
		} else {
		return "/baselworld/2007/css/screen.css";
		}
}
var osname = GetOsName();
document.write('<link rel="stylesheet" type="text/css" media="print" href="/baselworld/2007/css/print.css">');
document.write('<link rel="stylesheet" type="text/css" media="screen" href="'+ osname +'">');