function Popup(href, w, h)
{
	var l = (screen.width - w) / 2;
	var t = (screen.height - h) / 2;	
	if(l < 0) l = 0;
	if(t < 0) t = 0;
	
	win = window.open(href, '11', 'toolbar=no, scrollbars=no, menubar=no, directories=no, status=no, resizable=no, width=' + w + ', height=' + h + ', top=' + t + ', left=' + l);
	win.focus();

	return false;
}