document.observe('ready', function() {
  var brandlisting = $('brandlisting');
  var onoff = $('onoff');
  var c = new Cookie('brandlisting');
  if (!c.get()) { brandlisting.hide() };

  onoff.observe('click', function(){
    new Fx.Slide(brandlisting).start();
    onoff.toggleClass('down');
    c.get() ? c.remove() : c.set(true, {duration: 365});
  });
});