public ActionResult LogIn(string Email, string Password , string ReturnUrl)
        {
            ViewData["Exception"] = null;
            acMng = new AccountManager<Account>();
            if (!ModelState.IsValid)
            {
                return View();
            }
            try
            {
                AuthManager(acMng.CreateIdentity(Email, Password));

                return Redirect(Url.Action("Index", "WorkArea"));
            }
            catch (Exception ex)
            {
                ViewData["Exception"] = ex;
                return View(new Account());
            }
        }