@using (Html.BeginForm(new { ReturnUrl = ViewBag.ReturnUrl }))
{
<!-- some -->
}@using (Html.BeginForm(new { ReturnUrl = ViewBag.ReturnUrl, @class = "myclass" }))<form action="/Account/Login?ReturnUrl=%2F&class=myclass" method="post">public ActionResult Login(string returnUrl)
{
ViewBag.ReturnUrl = returnUrl;
return View();
}