public ActionResult LogIn(String un, String pw)
        {
            var customerDB     = new DBCustomer();
            var hashedPassword = makeHash(pw);

            if (customerDB.validate(un, hashedPassword))
            {
                logInUser(un);
                return(Json(true));
            }
            else
            {
                Session["loggedInUser"] = null;
                return(Json(false));
            }
        }
        public ActionResult LogIn(String un, String pw)
        {
    
            var customerDB = new DBCustomer(); 
            var hashedPassword = makeHash(pw); 
            if (customerDB.validate(un, hashedPassword))
            {
                logInUser(un);
                return Json(true);
            }
            else
            {
                Session["loggedInUser"] = null;
                return Json(false);
            }

        }