title: <div> inside <tr> to regroup two <td>
body: <p>I need to regroup two td under one id.</p>
  
  <pre><code>&lt;table&gt;
    &lt;tr&gt;
      &lt;div id="a1"&gt;
        &lt;td&gt;&lt;/td&gt;
        &lt;td&gt;&lt;/td&gt;
      &lt;/div&gt;
      &lt;div id="a2"&gt;
      &lt;/div&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>I need this to do jQuery operation on two td at once. Is it possible? Is there another solution to do this?</p>