Twitter BS Launch Modal from Modal

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-combined.min.css">
<!-- Button to trigger modal -->
<a href="#firstModal" role="button" class="btn" data-toggle="modal">Launch first modal</a>
 
<!-- First Modal -->
<div id="firstModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
    <h3 id="myModalLabel">Modal header</h3>
  </div>
  <div class="modal-body">
    <p>One fine body…</p>
  </div>
  <div class="modal-footer">
    <button class="btn" data-dismiss="modal" aria-hidden="true">Close This Modal</button>
    <button id="next" class="btn">Next Modal</button>
    </div>
</div>

<!-- Second Modal -->
<div id="secondModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
    <h3 id="myModalLabel">Modal header</h3>
  </div>
  <div class="modal-body">
    <p>One fine body…</p>
  </div>
  <div class="modal-footer">
    <button class="btn" data-dismiss="modal" aria-hidden="true">Close</button>
    </div>
</div>

JavaScript

$("#next").click(function(){
    $('#firstModal').modal('hide');
    $('#secondModal').modal('show');
});