title: IE problem with optgroup / option onclick event
body: <p>This doesn't work with IE7. Does anybody know a work around? </p>
  
  <pre><code>&lt;select&gt;
    &lt;optgroup label="Swedish Cars"&gt;
      &lt;option value="volvo"&gt;Volvo&lt;/option&gt;
      &lt;option value="saab"&gt;Saab&lt;/option&gt;
    &lt;/optgroup&gt;
    &lt;optgroup label="German Cars"&gt;
      &lt;option value="mercedes" onclick="alert(1);"&gt;Mercedes&lt;/option&gt;
      &lt;option value="audi"&gt;Audi&lt;/option&gt;
    &lt;/optgroup&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>When I pick Mercedes, i can see the alert box. It doesn't happen in IE.</p>