public function sendmessagesAction()
 {
     if ($this->auth->hasIdentity()) {
         $this->_helper->viewRenderer->setNoRender(true);
         $sendmsgusr = new Application_Model_Messages($this->registry['DB']);
         $suserid = $this->getRequest()->getParam('userid');
         $message = $this->getRequest()->getParam('message');
         echo json_encode($sendmsgusr->sendMessages($suserid, $message));
     } else {
         echo json_encode(array('status' => 'error'));
     }
 }