window.addEvent('domready',function() {
  /* settings */
  var showDuration = 6000;
  var container = $('slideshow-container');
  var slides = container.getElements('div');
  var currentIndex = 0;
  var interval;
  /* opacity and fade */
  slides.each(function(div,i){
    if(i > 0) {
      div.set('opacity', 0);
    }
  });
  /* worker */
  var show = function() {
    if(Browser.Engine.trident){ //ie
    slides[currentIndex].set('opacity', 0);
    slides[currentIndex = currentIndex < slides.length - 1 ? currentIndex+1 : 0].set('opacity', 1);
    }
    else
    {
    slides[currentIndex].fade('out');
    slides[currentIndex = currentIndex < slides.length - 1 ? currentIndex+1 : 0].fade('in');
    }
  };

/*  var show = function() {

    slides[currentIndex].set('opacity', 0);
    slides[currentIndex = currentIndex < slides.length - 1 ? currentIndex+1 : 0].set('opacity', 1);
    //alert(currentIndex);

  };   */
  /* start once the page is finished loading */
  window.addEvent('load',function(){
    interval = show.periodical(showDuration);
  });

  $('start').addEvent('click',function(){
    interval = show.periodical(showDuration);
  });

  $('stop').addEvent('click',function(){
    $clear(interval);
  });

  $('div1').addEvent('click',function(){
    $clear(interval);
    slides[currentIndex].fade('out');
    slides[0].fade('in');
  });


});