//popup windows

function popup(url,w,h)
{
	var popwin;
	var opts = "height=" + h + ",width=" + w + "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars,resizable,copyhistory=yes";
	popwin = window.open("", name, opts);
	popwin.focus();
	popwin.location = url;
}