var slides= new Array('slide1', 'slide2', 'slide3', 'slide4', 'slide5', 'slide6', 'slide7'); 
var i = 0; var wait = 2500;

function SlideShow() {

Effect.Fade(slides[i], { duration:1, from:1.0, to:0.0 }); 
i++;
 if (i == 7) i = 0; 
Effect.Appear(slides[i], { duration:1, from:0.0, to:1.0 });
 } 


// the onload event handler that starts the fading. 
function start_slideshow() { new Effect.Opacity('slidefade', { from: 1, to: 0, duration: 1 });  setInterval('SlideShow()',wait); }