function apriFinestra(pageName,Wtop,Wleft,Wwidth,Wheight){
		var tmp;
		tmp = window.open(pageName,"f","top="+Wtop+", left="+Wleft+", toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, width="+Wwidth+", height="+Wheight);
	}