title: How to get selected item in list-group in bootstrap
body: <p>I have a list-group like this:</p>
  
  <pre><code>&lt;div class="list-group list"&gt;
      &lt;a href="#" class="list-group-item active" id="leftOverlayTitle"&gt;
          Cras justo odio
      &lt;/a&gt;
      &lt;a href="#" class="list-group-item"&gt;Dapibus ac facilisis in&lt;/a&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I wonder how I can check with plain Javascript, which element is highlighted (selected).</p>
  
  <p>Any suggestions?</p>