public ActionResult StatementView(Statement_ViewModel models)
        {
            int SessionUserID = WebSecurity.GetUserId(User.Identity.Name);

            Bank bank = new Bank();

            if (ModelState.IsValid)
            {
                HttpContext.Session["accountNumber"] = models.AccountNumber;
                return View(bank.postStatement(SessionUserID, models));
            }
            else
            {
                HttpContext.Session["accountNumber"] = null;
                return StatementView();
            }
        }