title: transforming xml embedded in html
body: <p>suppose I have xml inside an html document like</p>
  
  <pre><code>&lt;html&gt;
    &lt;body&gt;
       &lt;xml&gt;
          &lt;foo&gt;
            &lt;bar /&gt;
            &lt;baz /&gt;
          &lt;/foo&gt;
       &lt;/xml&gt;
     &lt;/body&gt;
   &lt;/html&gt;
  </code></pre>
  
  <p>What is the best way to apply xslt to the xml node?</p>