function ApriPiantina()
{
	var t, l, h, w, nScroll;
	var xPopup;

	h = 570; w = 690; nScroll=0;

	t = (screen.height - h) / 2;
	l = (screen.width - w) / 2;

	xPopup = window.open ("Cartina.asp", "Piantina", "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=" + w + ",height=" + h + ",left=" + l + ",top=" + t)
	xPopup.focus();
}