public function addbookmarkpopupActi on this- _helper- layout- disable

public function addbookmarkpopupAction()
    {
        $this->_helper->layout->disableLayout();

        $form      = new StuffForm;
        $listModel = new Lists;

        $userID    = Zend_Auth::getInstance()->getIdentity()->uid;


        $form->list->addMultiOptions($listModel->getShort($userID, false,  - Lists::TYPE_GROUP));
        $form->list->addErrorMessage('Please select a List');


        if($this->_request->isPost()) {

            try {

                if (!array_key_exists('list', $_POST)) {
                	throw new Exception('Please select a List');
                }

                if (!$form->isValid($_POST)) {

                    $_messages_ready = Array();
                    $_messages       = $form->getMessages();

                    foreach ($_messages as $element_name => $descr) {
                        if (is_array($descr)) {
                            foreach ($descr as $code => $err_descr) {
                                array_push($_messages_ready, "$err_descr");
                            }
                        }
                    }

                    if (!empty($_messages_ready)) {
                    	$_messages_ready = implode('<br/>', $_messages_ready);
                    }else {
                        $_messages_ready = 'Unknown error. Please contact igottaList administrator.';
                    }
                    $this->getResponse()->appendBody(Zend_Json_Encoder::encode(array('isError' => true, 'error_message' => $_messages_ready)));
                    $this->_helper->viewRenderer->setNoRender();
                    return;
                }



                // uploading here!
                list($itemID, $listID) = $this->saveStuff($form, $listModel, $is_uploaded = false);




            }catch (Exception $e) {
                $this->getResponse()->appendBody(Zend_Json_Encoder::encode(array('isError' => true, 'error_message' => $e->getMessage())));
                $this->_helper->viewRenderer->setNoRender();
                return;
            }

            $this->getResponse()->appendBody(Zend_Json_Encoder::encode(array('isError' => false, 'itemID' => $itemID, 'listID' => $listID)));
            $this->_helper->viewRenderer->setNoRender();
            return;
        }



        $this->view->form     = $form;
    }