title: Adobe Edge Preloader JQuery/$ is undefined
body: <p>I've been working with Adobe Edge for some time now and I also want to use the Preloader to load data for my composition via AJAX. To achieve this I created the following code inside the Preloader>loading-Event. Which event is a bit of a Problem because there is no documentation at all for that, so I have not the slightest idea when it is fired.</p>
  
  <pre><code>// this little fella is fetching url-
  // parameters and puts them in a var called GET
  (function () {
      window.GET = {};
      var s = window.location.search.substring(1).split('&amp;');
      if (!s.length) return;
      for (var i = 0; i &lt; s.length; i++) {
          var parts = s[i].split('=');
          window.GET[unescape(parts[0])] = unescape(parts[1]);
      }
  }())
  
  var playlist = GET["l"],
      playlistLoadSuccessHandler = function (data, status, xhr) {
          console.log(data);
      };
  
  $.ajax({
      url: playlist,
      dataType: 'xml',
      success: playlistLoadSuccessHandler
  });
  </code></pre>
  
  <p>So and all I'm getting is this: <strong>Uncaught ReferenceError: $ is not defined</strong></p>
  
  <p>Has anyone a little more experience in Adobe Edge than me and knows what my mistake is here?</p>