title: Mousemove event working on document but not 'body'
body: <p>I am trying to make a div look like a turned-off light and when the mouse moves, the light turns on.</p>
  
  <p>I am done with the part where the mouse movement turns the light on. Look at <a href="http://jsfiddle.net/CSdF9/1/"><strong>this fiddle</strong></a>.</p>
  
  <p>jQuery code:</p>
  
  <pre><code>$(document).mousemove(function() {
      $('div').addClass('glow');
  });
  </code></pre>
  
  <p>I have 2 questions about it</p>
  
  <ol>
  <li><p>If I put 'body' instead of document, it doesn't work, why?</p></li>
  <li><p>How can I detect the mouse stop?</p></li>
  </ol>