<div id="preview_images">
  <% @item.uploads.each do | upload | %>
    <div class="previews">
      <h1><%= upload.item_file_name %></h1>
      <% if upload.is_image? %>
        <%= image_tag upload.item(:small)  %>
      <% else %>
        <%= image_tag 'pictos/unknown.png' %>
      <% end %>
    </div>
  <% end %>
</div>

<% @gallery.pictures do |picture| %>
  <p> <%= picture.image_file_name %></p>
 <%= image_tag picture.image_url(:thumb)
<% end %>