function popup(p_url, p_name, p_w, p_h)
{
	w = window.open(p_url, p_name, 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,left=20,top=20,width=' + p_w + ',height=' + p_h);
	w.focus();
}