title: Get nested element value
body: <p>i have the html:</p>
  
  <pre><code>&lt;div&gt;
       &lt;label&gt;
          &lt;input type='radio' name='a'&gt;
          &lt;span&gt;&lt;/span&gt;
          &lt;input type='hidden' value='1'&gt;
       &lt;/label&gt;
       &lt;label&gt;...
  &lt;/div&gt;
  </code></pre>
  
  <p>I need to get value of hidden input by click event on label.</p>
  
  <p>I have javascript like this:</p>
  
  <pre><code>$('label').live('click', function () {
  
          var value = $(this).children('input:hidden').val();
  
      });
  </code></pre>
  
  <p>But this is not work. Can anybody help?</p>