private function showComment()
 {
     if (isset($_GET['cid'])) {
         parent::__construct($this->_tpl, new CommentModel());
         $this->_model->cid = $_GET['cid'];
         $_content = new ContentModel();
         $_content->id = $_GET['cid'];
         if (!$_content->getOneContent()) {
             Tool::alertBack('comment not existing');
         }
         parent::page($this->_model->getCommentTotal());
         $_object = $this->_model->getAllComment();
         $_object2 = $this->_model->getHotThreeComment();
         $_object3 = $_content->getHotTwentyComment();
         $this->setObject($_object);
         $this->setObject($_object2);
         $this->_tpl->assign('titlec', $_content->getOneContent()->title);
         $this->_tpl->assign('info', $_content->getOneContent()->info);
         $this->_tpl->assign('id', $_content->getOneContent()->id);
         $this->_tpl->assign('cid', $this->_model->cid);
         $this->_tpl->assign('AllComment', $_object);
         $this->_tpl->assign('HotThreeComment', $_object2);
         $this->_tpl->assign('HotTwentyComment', $_object3);
     } else {
         Tool::alertBack('illegal act');
     }
 }