title: jquery and fold effect: hide directly without animation
body: <p>I'm trying to animate a div, which has 3-4 child divs, with the <code>fold</code> effect:</p>
  
  <pre><code>$("#main div").each(function () {
      $(this).click(function () {
          $(this).effect('fold',{},'2000',callback);
      })
  });
  </code></pre>
  
  <p>When I click on the main div it will normally disappear with a nice effect. But in fact, no, it only disappears.</p>
  
  <p><a href="http://nyam.eclecticshots.org/test/" rel="nofollow">Here is a link</a> where you can see what happens (I use firefox) &mdash; (<a href="http://nyam.eclecticshots.org/test/" rel="nofollow">link</a>)</p>