var o = $$('#bottom_frame_left_side a');
  var t = o.length;
  o.each(function(e,k){
    e.setOpacity(k==0?1:0);
  });

  var hs;
  var cu = 0;
  setInterval(function(){
    var n;
    var a = cu;

    n = cu==t-1?o[0]:o[cu].next();
    a = cu==t-1?0:a+1;

    n.setOpacity(0).addClassName('show').appear();
    o[cu].removeClassName('show').fade();

    cu = a;
  },6000);