function popUp(url, width, height)
	{

		var X	=	(Math.round(screen.width/2))-(Math.round(width/2))
		var Y	=	(Math.round(screen.height/2))-(Math.round(height/2)) - 30
	
		win = window.open(url, "SELEZ", "width=" + width + ",height=" + height + ",status=no,toolbar=no,menubar=no,scrollbars=no,resizable=no,top="+Y+",left="+X );
		win.focus()
	}
	
	function nd(){
		alert("Al momento non disponibile!")
	}