public ActionResult ReturnUserVideo(int userId)
        {
            var result = new StatusModel();

            var rentBL = new RentBL();
            result = rentBL.ReturnUserVideo(userId);

            return Json(result,JsonRequestBehavior.AllowGet);
        }
        public ActionResult ReturnVideo(RentVideoModel model)
        {
            var result = new StatusModel();

            var rentBL = new RentBL();
            result = rentBL.ReturnVideo(model);

            return Json(result, JsonRequestBehavior.AllowGet);
        }
        public ActionResult RentVideo(RentVideoModel model)
        {
            var result = new StatusModel();

            var rentBL = new RentBL();
            result = rentBL.RentVideo(model);

            return Json(result);
        }