public function deleteuserAction()
 {
     $this->_helper->viewRenderer->setNoRender();
     $this->_helper->getHelper("layout")->disableLayout();
     $this->getFileUploadScript();
     $aInputFilters = array("*" => array(new Zend_Filter_StringTrim()));
     $aInputValidators = array("id" => array(new Zend_Validate_Digits()));
     $bJson = false;
     $oInput = new Zend_Filter_Input($aInputFilters, $aInputValidators, $_POST);
     $nId = $oInput->getUnescaped("id");
     $oModelUser = new Admin_Model_User();
     if ($oModelUser->deleteRow($nId)) {
         $bJson = true;
     }
     header("Content-type: application/json");
     echo Zend_Json::encode($bJson);
     exit;
 }