var n = 0;
window.addEvent('domready',function(){
  var sliders = $$('#slider img');
  sliders.set('opacity',0);
  sliders.set('tween', {duration: 1000});
  function swapslider() {
    sliders[n].fade('out');
    if ( ++n == sliders.length ) n = 0;
    sliders[n].fade('in');
    setTimeout(function(){swapslider();},8000)
  }
  if ( !Browser.ie || Browser.version >= 9 ) {
    swapslider();
  } else {
    sliders[0].set('opacity',1);
    // console.log(Browser.version);
  }

})