mac=(navigator.appVersion.indexOf("Mac")!= -1)?true:false;
ie=(navigator.appName.charAt(0) == "M")?true:false;
nn=(navigator.appName.charAt(0) == "N")?true:false;
 	if(mac){
 		if(ie){
 			fName = "font_mac_ie.css";
 		}
 		else if(nn){
 			fName = "font_mac_n.css";
 		}
 	}
 	else{
 		if(ie){
 			fName = "font_win_ie.css";
 		}
 		else if(nn){
 			fName = "font_win_n.css";
 		}
 	}
 	if(fName != null){
 		document.write('<LINK rel="STYLESHEET" href="../../eng/css/' + fName + '" type="text/css">');
 	}