aName   = navigator.appName.toUpperCase();
appVer  = navigator.appVersion;
if (aName.indexOf("NETSCAPE") >= 0)
{
	s = appVer.indexOf(" ",0);
	version = eval(appVer.substring(0,s));
	if (version >= 5) version++;
}
if (aName.indexOf("MICROSOFT") >= 0)
{
	appVer  = navigator.userAgent;
	s = appVer.indexOf("MSIE ",0) + 5;
	e = appVer.indexOf(";",s);
	version = eval(appVer.substring(s,e));
}
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="http://www.rgs680.com/rgs_mac.css";
	}
	else if (ns) {
		if (version >=6) {
		fName="http://www.rgs680.com/rgs_macN6.css";
		}
		else{
		fName="http://www.rgs680.com/rgs_macNN.css";
		}
	}
}
else{
	if (ie){
	fName="http://www.rgs680.com/rgs_win.css";
	}
	else if (ns) {
		if (version >=6) {
		fName="http://www.rgs680.com/rgs_winN6.css";
		}
		else{
		fName="http://www.rgs680.com/rgs_winNN.css";
		}
	}
}
if (fName != null){
	document.write("<link rel='stylesheet' href='"+fName+"' type='text/css'>");
	}