var delay = 3000;
var start_frame = 0;

function init() {
 var lis = $('slide-show').getElementsByTagName('li');
 for( i=0; i < lis.length; i++){
  if(i!=0){
   lis[i].style.display = 'none';
  }
 }
end_frame = lis.length -1;
start_slideshow(start_frame, end_frame, delay, lis);
}

function start_slideshow(start_frame, end_frame, delay, lis) {
 setTimeout(fadeInOut(start_frame,start_frame,end_frame, delay, lis), delay);
}

function fadeInOut(frame, start_frame, end_frame, delay, lis) {
 return (function() {
  lis = $('slide-show').getElementsByTagName('li');
  Effect.Fade(lis[frame], { duration: 3.0});
  if (frame == end_frame) { frame = start_frame; } else { frame++; }
  lisAppear = lis[frame];
  setTimeout("Effect.Appear(lisAppear, { duration: 3.0 });", 0);
  setTimeout(fadeInOut(frame, start_frame, end_frame, delay), delay + 1850);
 })
}

Event.observe(window, 'load', init, false);