title: How to scroll up with Jquery?
body: <p>I tried everything, and i can't write the good Jquery code to make my body scrolls up.
  This is my JS :</p>
  
  <p><code>$("body").animate({scrollTop:$(document).height()}, 9000);
          $(this).fadeOut(fast);
  </code></p>
  
  <p>And it makes the body scroll down when user click on a specific div, then i want to reverse this function to make the body scrolls up.. any idea ? </p>