title: Converting XML feed to JSON preserving the itunes:image data
body: <p>I need to convert a podcast feed XML to JSON. Today I use the Google API to convert my feed to JSON, using the sentence:</p>
  
  <pre><code>var jsonUrl = "http://ajax.googleapis.com/ajax/services/feed/load?v=1.0&amp;output=json&amp;num=999&amp;q="
                + encodeURIComponent(xmlUrl);
  
  WinJS.xhr({ url: jsonUrl, responseType: document }).done( ... )
  </code></pre>
  
  <p>This works, but I'm also interested in the &lt; itunes:image ... > data that these feeds have most of the time, but using the Google APIs it just give me Atom and RSS elements and ignore the itunes' ones.</p>
  
  <p>There's any way I can modify my Google call or even use some javascript inside my code, reading the XML and converting it myself, to get a standard RSS Json plus the itunes image info?</p>