title: jquery resize scrollbar to fit height of overlay div
body: <p>I would like to create something similar to this: <a href="http://tapiture.com/popular" rel="nofollow">http://tapiture.com/popular</a></p>
  
  <p>not the site, but the onClick image event.
  when you click an image, the scrollbar resizes to the height of the overlay image.</p>
  
  <p>how can i make something like this using jquery?</p>