anchor.diff:        </tr>
         <tr>
           <td colspan="2" align="right">
  -          <%= f.submit 'Show' %>
  +          <%= f.submit 'Update Displayed Data' %>
           </td>
         </tr>
       </table>
  
positive.code:   </tr>
  </table>
  
  <div id="treemap-display" style="height: 500px;">
  </div>    
  
  <div style="margin-top: 14px;">
    <input id="go_to_parent" type="button" class="button" value="Go to Parent" />
  </div>
  
  <script type="text/javascript">
  
negative.code:   <div id="ajax_working">Loading heat map...</div>
  </div>
  
  <div id="treemap-display" style="height: 500px; border: 1px solid #C0C0C0;">
  </div>    
  
  <table width="100%" style="margin-top: 2px; border-spacing: 0; height: 4px;">
    <tr>
      <% HeatMapColorSupport.color_table.each do |color| %>
        <td style="background-color: <%= color.to_s %>"></td>
  