public function videosAction()
 {
     if ($this->auth->hasIdentity()) {
         $getvideos = new Application_Model_Videos($this->registry['DB']);
         $userid = $this->getRequest()->getParam('userid');
         $from = $this->getRequest()->getParam('from');
         if (empty($from) && !(is_int($from) || ctype_digit($from))) {
             $from = 0;
         }
         $this->userModel = new Application_Model_Users($this->registry['DB']);
         if (!empty($userid)) {
             if (isset($this->authIdentity)) {
                 $this->view->userDetails = $this->userModel->getUserDetails($userid, $this->authIdentity);
             } else {
                 $this->view->userDetails = $this->userModel->getUserDetails($userid);
             }
         }
         $this->view->mydetails = $this->authIdentity;
         $this->view->userid = $userid;
         $this->view->results = $getvideos->videos($userid, $from);
         if ($this->_request->isXmlHttpRequest() && $this->getRequest()->getParam('format') == 'xml') {
             $this->_helper->viewRenderer->renderScript('videos/getuservideos.phtml');
         }
     }
 }