var tempo_di_attesa=5000;

function FfadeOut(b) {
  var c=$('slide').getElements('img');
  if (c[b]) {
    c[b].addEvents({'domready':function(){
      var a=new Fx.Tween(this,{duration:1500,transition:Fx.Transitions.linear});
      a.start('opacity','1','0')
    } } );
  }
}

function FfadeIn(b) {
  var c=$('slide').getElements('img');
  if (c[b]) {
    c[b].addEvents( {'domready':function(){
      var a=new Fx.Tween(this,{duration:1500,transition:Fx.Transitions.linear});
      a.start('opacity','0','1')
    } } );
  }
  setTimeout("FfadeOut("+b+")",tempo_di_attesa)
}

timerDown="";

function ruota(){
  clearTimeout(timerDown)
  var a = $('slide').getElementsByTagName("img").length;
  for(var i=0;i<a;i++){
    setTimeout("FfadeIn("+i+")",tempo_di_attesa*i)
  }
  timerDown=setTimeout("ruota ("+a+")",tempo_di_attesa*i)
}

document.addEvent( 'domready' , function() { ruota.delay(2500); } );