title: dojo drag and drop: how to add handler for drop event
body: <p>I have a simple list like this:</p>
  
  <pre><code>&lt;div dojoType="dojo.dnd.Source" id="myList"&gt;
      &lt;div class="dojoDndItem"&gt;item 1&lt;/div&gt;
      &lt;div class="dojoDndItem"&gt;item 2&lt;/div&gt;
      &lt;div class="dojoDndItem"&gt;item 3&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>And I use the dojo attributes to make the list sortable.</p>
  
  <p>It works without any problems, but how do I add a listener to the event when an item is dropped? If the user releases the mouse and the element snaps in place I want a javascript function to handle this event. How can I add it via markup?</p>