/* Written by Erik Demaine <edemaine@mit.edu>, 2012.
 * Distributed under the MIT License
 * [http://www.opensource.org/licenses/mit-license.php]
 */

/*function unify_boxes ()*/
{
  var divs = document.getElementsByTagName ('div');
  var maxHeight = 0;
  for (var i = 0; i < divs.length; i++) {
    if ((' ' + divs[i].className + ' ').indexOf (' stackpreview ') >= 0) {
      maxHeight = Math.max (maxHeight, divs[i].offsetHeight);
    }
  }
  for (var i = 0; i < divs.length; i++) {
    if ((' ' + divs[i].className + ' ').indexOf (' stackpreview ') >= 0) {
      divs[i].style.height = maxHeight + 'px';
    }
  }
}