title: Razor Html helper Html.BeginForm
body: <p>I have a view in ASP.NET MVC4 and it has the following code which starts an HTML form:</p>
  
  <pre><code>      @using (Html.BeginForm(new { ReturnUrl = ViewBag.ReturnUrl }))
  </code></pre>
  
  <p>Now i need to give this form an id="login" and a class="loginform". How do I specify such HTML parameters to the Html.BeginForm class?</p>
  
  <p>Also: where can I find an API or documentation on all the HTML helper functions which explains all of the parameters and the details?</p>