title: How to get an element's position in real time
body: <p>I need to get the position of a div in real time, and I'm trying the following:</p>
  
  <pre><code>html div
    id: 'square';
    script: (html jQuery new draggable 
      onStop: (html jQuery ajax 
        callback: [Transcript show: html jQuery this position])).
  </code></pre>
  
  <p>Unfortunately it doesn't work, the transcript shows: 'a JQueryInstance ($(this).position())'</p>
  
  <p>What's the proper way to do this?</p>