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.Fade('slideshow' + frame, {duration: .5});
		if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
		setTimeout("Effect.Appear('slideshow" + frame + "', {duration: .5});", 501);
		setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay + 850);
	})
}
window.onload = function(){
	start_slideshow(1, 4, 3000);
}