case 'tree_msg':
                        if (_uid && $msg_obj) {
                                th_inc_view_count($msg_obj->thread_id);
                                if ($msg_obj->last_forum_view < $msg_obj->post_stamp) {
                                        user_register_forum_view($msg_obj->forum_id);
                                }
                                if ($msg_obj->last_view < $msg_obj->post_stamp) {
                                        user_register_thread_view($msg_obj->thread_id, $msg_obj->post_stamp,
                                }
                        }
                        break;