if (is_array($cur_value)) {
                $body[] = '<optgroup label="' . $key . '" title="' . ($translate ? t($key) : $key) . '">';
                $body[] = $this->$self_func($name, $cur_value, $selected, $show_text, $type, $add_str, $translate, $level + 1);
                $body[] = '</optgroup>';
            } else {