uName = navigator.userAgent.toUpperCase();
aName = navigator.appName.toUpperCase();
version = 0;
s = 0;
e = 0;
appVer = navigator.userAgent;

if (navigator.userAgent.indexOf("Win") >= 0) {
	if (navigator.appName.indexOf("Microsoft") >= 0) {
		dirName="win_ie";
	} else {
			if(navigator.appVersion.charAt(0) >= 5){
				dirName="win_nn6";
			}else{
				dirName="win_nn";
		}
	}
} else {
		if(uName.indexOf("SAFARI") >= 0) {
			dirName="mac_sa";
		}
		else if(aName.indexOf("MICROSOFT") >= 0) {
			s = appVer.indexOf("MSIE ",0) + 5;
			e = appVer.indexOf(";",s);
			version = eval(appVer.substring(s,e));
			if ((version >= 5.2) && (version < 5.3)) {
				dirName="mac_sa";
			}else{
				dirName="mac";
			}
		}
		else{
			dirName="mac";
		}
}
document.write('<LINK REL="stylesheet" TYPE="text/css" HREF="/common/css/'+dirName+'.css">');