title: Find td with specific text, and operate on the td right after that one?
body: <p>I'm not very familiar with jQuery selectors, so would like some help.</p>
  
  <p>I have a table like this:</p>
  
  <pre><code>&lt;table class="test"&gt;
    &lt;tr&gt;
      &lt;td&gt;Section Heading 1&lt;/td&gt;&lt;td&gt;Section Text 1&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;Section Heading 2&lt;/td&gt;&lt;td&gt;Section Text 2&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;Section Heading 3&lt;/td&gt;&lt;td&gt;Section Text 3&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;Section Heading 4&lt;/td&gt;&lt;td&gt;Section Text 4&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
      &lt;td&gt;Section Heading 5&lt;/td&gt;&lt;td&gt;Section Text 5&lt;/td&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>What I need to do is find the <code>td</code> containing a specific text, and the operate on the text in the <code>td</code> on its right.</p>
  
  <p>For example, say I want to find the <code>td</code> containing the text <code>Section Heading 4</code>, and the concatenate the text contained in the <code>td</code> to it's right, with the text <code>hello</code>, so that <code>Section Text 4</code> becomes <code>Section Text 4 hello</code> ..</p>
  
  <p>Which jQuery selector(s) can be used for this purpose ?</p>