var id = new Array();

function start_slideshow(start_frame, end_frame, delay,number_of_slideshow) {
	id[number_of_slideshow] = setTimeout(switch_slides(start_frame,start_frame,end_frame, delay,number_of_slideshow), delay);
}
	
function switch_slides(frame, start_frame, end_frame, delay,number) {
	return (function() {
		Effect.Fade('slide'+number+'_i'+frame, { duration: 1.0 });
		if (frame == end_frame) {
			frame = start_frame;
			} else {
				frame = frame + 1;
				}
		Effect.Appear('slide'+number+'_i'+frame, { duration: 1.0 });
		if (delay == 1000) {
			delay = 3000;
			}
		id[number] = setTimeout(switch_slides(frame, start_frame, end_frame, delay,number), delay);
	})
}

function stop_slideshow(number) {
	clearTimeout(id[number]);
}