mac = (navigator.appVersion.indexOf("Mac") != -1)?true:false;
ie = (navigator.appName.charAt(0) == "M")?true:false;
ns = (navigator.appName.charAt(0) == "N")?true:false;

if(mac){
	if(ie){
		fName = "/css/mac_ie.css"
	}
	else if(ns){
		fName = "/css/mac_ns.css"
	}
	else{
		fName = "/css/common.css"
	}
}
else{
	if(ie){
		fName = "/css/win_ie.css"
	}
	else if(ns){
		fName = "/css/win_ns.css"
	}
	else{
		fName = "/css/common.css"
	}
}
if(fName != null){
	document.write("<link rel='stylesheet' href='"+fName+"' type='text/css' media='all'>");
	document.write("<link rel='stylesheet' href='/css/print.css' type='text/css' media='print'>");
}