public function historyNext()
 {
     load_class('history');
     session_start();
     //re start
     $session = $_SESSION['history'];
     if (is_array($session)) {
         $hi = new history($session);
         $path = $hi->gonext();
         $_SESSION['history'] = $hi->getHistory();
         $folderlist = $this->path(_DIR($path));
         $_SESSION['this_path'] = $path;
         show_json(array('history_status' => array('back' => $hi->isback(), 'next' => $hi->isnext()), 'thispath' => $path, 'list' => $folderlist));
     }
 }