+ $mdb2 = getConnection();
+
+ $subgroups = array();
+ $sql = "select id from tt_groups where parent_id = $group_id";
+ $res = $mdb2->query($sql);
+ if (!is_a($res, 'PEAR_Error')) {
+ while ($val = $res->fetchRow()) {
+ $subgroups[] = $val;
+ }
+ }
+ return $subgroups;