ua = navigator.userAgent;
l='<LINK rel="stylesheet" type="text/css" href="/css/';
c='.css">';
 if (ua.indexOf('IE 4') !=-1) document.write(l+'ie4'+c);
 if (ua.indexOf('IE 5') !=-1) document.write(l+'ie5'+c);
 if (ua.indexOf('IE 6') !=-1) document.write(l+'ie5'+c);
 if (ua.indexOf('Opera') !=-1) document.write(l+'op'+c);
 if (ua.indexOf('Netscape6') !=-1) document.write(l+'moz'+c);
 if (ua.indexOf('Gecko') !=-1) document.write(l+'moz'+c);
	else if (ua.indexOf("compatible")==-1) {
		if (ua.indexOf("/4") !=-1) document.write(l+'nn4'+c)}