title: jquery does not react on select/option change event
body: <p>Can someone please tell me where the mistake is, I just can't see it.
  'e1 has changed' should be logged to the console when the select changes.</p>
  
  <p>html:</p>
  
  <pre><code>&lt;select name="e1" id="e1"&gt;
      &lt;option value="1"&gt;1&lt;/option&gt;
      &lt;option value="2"&gt;2&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>js:</p>
  
  <pre><code>$('#e1').change(function() {
      console.log('e1 has changed');
  });
  </code></pre>
  
  <p>jquery is definitely working since I'm successfully "getting" server data for other elements.</p>