function popup(f, w, h, n)
{
	if (!n) n = '';
    //n += 'search';
	winPopImg = window.open(f, n, 'toolbar=no,location=no,status=no,menubar=no,resizable=yes,scrollbars=yes,copyhistory=no,width=' + w + ',height=' + h);
    winPopImg.focus();
}