// JavaScript Document
function popup(action,width,height) { 
	var leftedge = (screen.width - width) / 2;
	var topedge = (screen.height - height) / 2;
	window.open(action, 'popup', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=' + width + ',height=' + height + ',left=' + leftedge +', top=' + topedge);
}