           </tr>
             <tr class="nav-entry n3 _3">
              <td class="nav-number n3"><a href="tips-and-tricks.html"><span class="section-number">13</span><span class="nav-space"></span></a></td>
              <td class="nav-title n3"><a href="tips-and-tricks.html">Tips and tricks</a></td>
             </tr>
            </tbody>
           </table>
          </td>
         </tr>
        </tbody>
        <tbody class="nav-after-open n2">
         <tr class="nav-entry n2 _6">
          <td class=