function checkbrowse(){
 browsename = navigator.appName.charAt(0);
 ver = window.navigator.appVersion.charAt(0);

 if (browsename == "N"){
	 document.write("<link href=/eleonet/stile_eleonet_ns.css type=text/css rel=stylesheet media=screen />");
 }
 else {
	document.write("<link href=/eleonet/stile_eleonet_ie.css type=text/css rel=stylesheet media=screen />");
 }
}
javascript:checkbrowse();