anchor.diff:          <% else %>
           (No group)
           <% end %>
  -        <!-- Render time = <%= Time.now - start_time  -%> -->
  +        <!-- Group render time = <%= Time.now - start_time  -%> -->
         </td>
  -      <td><%= distance_of_time_in_words(Time.now, model.node_versions.first.updated_at) %> ago</td>
  +      <td>
  +        <% start_time = Time.now -%>
  +        <%= distance_of_time_in_words(Time.now, model.node_versions.first.updated_at) %> ago
  +        <!-- Last modified render time = <%= Time.now - start_time  -%> -->
  +      </td>
  +      <% if false %>
         <td>
           <% start_time = Time.now -%>
           <% model.people.each do |person| %>
           <%= person_image(person) %><%= person_link(person) %><br />
           <% end %>
  -        <!-- Render time = <%= Time.now - start_time  -%> -->
  +        <!-- People render time = <%= Time.now - start_time  -%> -->
         </td>
  +      <% end %>
       </tr>
   
       <% end %>
  
positive.code:         <% start_time = Time.now -%>
          <img src="/browse/display_preview/<%= model.id %>" width="30" height="30" alt="Preview of model '#{model.name}'" />
          <%= link_to model.name, :controller => "browse", :action => "one_model", :id => model.id %><%= render :partial => "browse/preview_image", :locals => {:model => @model} -%>
          <!-- Render time = <%= Time.now - start_time  -%> -->
        </td>
        <td>
          <% start_time = Time.now -%>
  
negative.code:         <% else %>
          <%= model.tags.sort_by {|t| t.name}.map {|t| link_to t.name, :controller => :tags, :action => :one_tag, :id => t.id}.uniq.join(', ') %>
          <% end %>
          <!-- Tags render time = <%= Time.now - start_time  -%> -->
        </td>
  
        <td>
  