var risoluzione = window.screen.width;

	if (document.all){ // Explorer
   		switch(risoluzione) {
			case (800):		document.write('<link rel="stylesheet" href="fogli/ie_stile800.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu800.js"></script>');break;
			case (1024):	document.write('<link rel="stylesheet" href="fogli/ie_stile1024.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu1024.js"></script>');break;
			case (1280):	document.write('<link rel="stylesheet" href="fogli/ie_stile1280.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu.js"></script>');break;
			default:		document.write('<link rel="stylesheet" href="fogli/ie_stile.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu.js"></script>');break;
		}
	}

else 
	if (!document.all && document.getElementById){ //mozilla
		switch(risoluzione) {
			case (800):		document.write('<link rel="stylesheet" href="fogli/mz_stile800.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu800.js"></script>');break;	
							
			case (1024):	document.write('<link rel="stylesheet" href="fogli/mz_stile1024.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu1024.js"></script>'); break;
							
			case (1280):	document.write('<link rel="stylesheet" href="fogli/mz_stile1280.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu.js"></script>'); break;
							
			default:		document.write('<link rel="stylesheet" href="fogli/mz_stile.css" type="text/css">');
							document.write('<script language="JavaScript" type="text/javascript" src="menu/menu.js"></script>'); break;
		}
	}