function open_href(ref_id) {
//	billigflug = window.open("/redirect.php?type=" + ref_type + "&id=" + ref_id, "billigflug_flug", "");
	billigflug = window.open("/show.php?id=" + ref_id, "billigflug_flug", "");
	billigflug.focus();
	return false;
}