protected function too_many_results($search, $count) {
        if ($search) {
            $a = new stdClass;
            $a->count = $count;
            $a->search = $search;
            return array(get_string('toomanyusersmatchsearch', '', $a) => array(),
                    get_string('pleasesearchmore') => array());
        } else {
            return array(get_string('toomanyuserstoshow', '', $count) => array(),
                    get_string('pleaseusesearch') => array());
        }
    }