function randomBackground() {
  var decals = new Array('accorns','heart','lei','owen','ukalele');

  decals.sort( randOrd );
  background_img = '/images/random/' + decals[0] + '.gif';

  document.getElementById('footer-icon').innerHTML = '<img src="' + background_img + '" />';
}

function randOrd(){
  return (Math.round(Math.random())-0.5);
}