public function hiddenAction()
{
$this->isAjax = true;
if ($this->_hasParam('id')) {
Zend_Loader::loadClass('Zend_Json');
$id = $this->_getParam('id');
$comments = new CommentsModel();
$result = $comments->hiddenComment($id);
echo Zend_Json::encode($result);
}
}