title: jQuery change text in link
body: <p>I have a simple question for jQuery...</p>
  
  <p>I have a table with a link like this</p>
  
  <pre><code>&lt;table&gt;
    &lt;tr&gt;
      &lt;td class="views-field"&gt;
        &lt;a href="ciao"&gt;201105&lt;/a&gt;
      &lt;/td&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>Now I would change the link's text from 201105 to 2011-05</p>
  
  <p>(simple add a "-" after the first 4 characters)</p>
  
  <p>I tried substring but don't work... Help me!!</p>