public function execute()
 {
     if (empty($_GET['uid'])) {
         throw new Exception('Enter uid');
     }
     $nrows = 10;
     $offset = 0;
     if (empty($_GET['offset'])) {
         $offset = $_GET['offset'];
     }
     $uid = $_GET['uid'];
     $Models_Messages = new Models_Messages();
     $return = $Models_Messages->message_view($uid, $nrows, $offset);
     $this->return = $return;
 }