QUESTION: should there be a plugin-utils.js?
function(r) {
  var div = document.createElement('div');
  div.style.position = 'absolute';
  div.style.left = r.x + 'px';
  div.style.top = r.y + 'px';
  div.style.width = r.w + 'px';
  div.style.height = r.h + 'px';
  return div;
}