title: limit slimbox (lightbox) image to window size
body: <p>HI all,</p>
  
  <p>Anyone know how to limit the overlay window size of slimbox to be a percentage of the user's window size (like prettyphoto does)</p>
  
  <p>Thanks</p>
  
  <p>Here's the module code:
  <a href="http://paste.ly/3Kz" rel="nofollow noreferrer">http://paste.ly/3Kz</a></p>
  
  <p>And the slimbox js:
  <a href="http://paste.ly/3L0" rel="nofollow noreferrer">http://paste.ly/3L0</a></p>