function Nascondi(){
		document.getElementById('Submenu1').style.display="none";
		document.getElementById('Submenu2').style.display="none";
		document.getElementById('Submenu3').style.display="none";
		document.getElementById('Submenu4').style.display="none";
	}
	
	function Mostra(subm){
		document.getElementById(subm).style.display="";
	}