public ActionResult LogOn(LogOnModel model, string returnUrl)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    var owner = RavenSession.Query<Owner>().SingleOrDefault(x => x.UserName == model.UserName && x.Password == model.Password);
                    if (owner != null)
                    {
                        FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);
                        if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                            && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                        {
                            return Redirect(returnUrl);
                        }
                        else
                        {
                            return RedirectToAction("Index", "Home", new { language = "en" });
                        }
                    }
                    else
                    {
                        ModelState.AddModelError("", "The user name or password provided is incorrect.");
                    }
                }

            }
            catch (WebException ex)
            {
                ModelState.AddModelError("", "Network error while connecting to the database");
            }
            // If we got this far, something failed, redisplay form
            return View(model);
        }