public ActionResult checklogin(string username, string password)
        {
            Employee employee = Employee.CheckEmployeeLogin(username, password);

            if (employee != null)
            {
                Session["employee"] = employee;
                return(RedirectToAction("index", "Mainpage"));
            }
            else
            {
                return(RedirectToAction("Index", "Employees", new { error = 2 }));
            }
        }