title: jQuery autocomplete shows value instead of label
body: <p>I am using <a href="http://api.jqueryui.com/autocomplete/" rel="noreferrer">jQuery-ui autocomplete</a>. Here is how i use it</p>
  
  <pre><code>&lt;form action="go.php" method="post"&gt;
      &lt;input id="txt" type="text" /&gt;
  &lt;/form&gt;
  
  &lt;script&gt;
      $('#txt').autocomplete({
           source: [{'label': 'milan', 'value': '1'}, {'label': 'minos', 'value': '2'}]
      })
  &lt;/script&gt;
  </code></pre>
  
  <p>When i type 'mi', <code>milan</code> and <code>minos</code> shows up.No problem with that. However when i focus on them with down key value of <code>#txt</code> changes to <code>1</code>(value for milan) instead of <code>milan</code>. How can i show <code>milan</code> when i focus on it. Thanks</p>