function Popup(url) {
	var w = '530';
	var h = '220';
	var target = '_blank';
	var left = (screen.width / 2) - (w / 2);
	var top = (screen.height / 2) - (h / 2);
	var cmd = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0, width='+w+', height='+h+', top='+top+', left='+left;
	var openwin = window.open(url, target, cmd);
}