start_slideshow(1, 5, 2000);

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

function switch_slides(frame, start_frame, end_frame, delay) {
	return (function() {

			Effect.toggle('slideshow' + frame , 'appear' , {delay: 2.5});
			
			if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
			setTimeout("Effect.Appear('slideshow" + frame + "');", 2000);
			setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay + 2000);
			}
			

			
		)
}