var delay = 10000;
var z = 0;
function slideShow() {
	var lis = $('slide-images').getElementsByTagName('li');
	Effect.Fade(lis[z], { duration:2, from:1.0, to:0.0 }); 
	z++;
 	if (z == lis.length) z = 0;
	Effect.Appear(lis[z], { duration:2, from:0.0, to:1.0 });
	setTimeout("slideShow();", delay);
} 
Event.observe(window, 'load', slideShow, false);