anchor.diff:  <% if product.images.size > 1 %>
     <ul id="product-thumbnails" class="thumbnails">
       <% product.images.each do |i| %>  
  -      <li><%= link_to(image_tag("/tienda#{i.attachment.url(:mini)}"), i.attachment.url(:product)) %></li>
  +      <li><%= link_to(image_tag("/tienda#{i.attachment.url(:mini)}"), "/tienda#{i.attachment.url(:product)}") %></li>
       <% end %>
     </ul>
   <% end %>
  
positive.code:         
          if checked 
            v.images.each do |i| %>  
              <li><%= link_to ( image_tag("/tienda#{i.attachment.url(:mini)}"), i.attachment.url(:product)) %></li>
            <% end %>
          <% end %>
        <% end %>
  
negative.code:     <% @variants.each do |v| %>
        images[<%= v.id.to_s %>] = new Array();
        <% v.images.each_with_index do |image, i| %>
          images[<%= v.id.to_s %>][<%= i %>] = <%= link_to(image_tag("/tienda#{image.attachment.url(:mini)}"), "/tienda#{image.attachment.url(:product)}").to_json %>;
        <% end %>
      <% end %>
    </script>
  