function Popup(apri,w,h) {
	var l = Math.floor((screen.width-w)/2);
	var t = Math.floor((screen.height-h)/2);
	var stile = "top="+t+", left="+l+", width="+w+", height="+h+",'resizable=yes' 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes";
	window.open(apri, "", stile);
}