title: Jquery validate plugin how to add error class to label
body: <p>Using the jquery validate plugin and I'm trying to override it's default behavior. this is an example of my html:</p>
  
  <pre><code>&lt;table&gt;
  &lt;tr&gt;
    &lt;td&gt;
      &lt;label for="my-input&gt;Name&lt;/label&gt;
    &lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td&gt;
      &lt;input type="text" class="required" id="my-input /&gt;
    &lt;/td&gt;
  &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>All I want the valadate to do is add the class .error to the existing label, and then remove it once the field passes validation. </p>
  
  <p>Thanks.</p>