Razor media

gistfile1.txt

     @if (post.HasValue("mediaFolder"))
     {
         var media = library.MediaById(post.mediaFolder);
         foreach (var item in media.Children())
         {
          <li>
              <a href="@item.umbracoFile">
                  <img style="width: 100px; height: 100px;" src="@item.umbracoFile" />
              </a>       
          </li>  
         }
     }

ms.Save(folder);
document.SetValue("mediaFolder", folder.Id);

StatusUpdate doctype: add prop - mediaFolder of type
media picker