function start_slideshow(name,start_frame, end_frame, delay) {
    setTimeout(switch_slides(name,start_frame,start_frame,end_frame, delay), delay);
}
                        
function switch_slides(name,frame, start_frame, end_frame, delay) {
    return (function() {
        //Effect.Fade(name + frame);
        document.getElementById(name + frame).style.display='none';
        if (frame >= end_frame) { frame = start_frame; } else { frame = frame + 1; }
        setTimeout("Effect.Appear('" + name + frame + "');", 50);
        setTimeout(switch_slides(name, frame, start_frame, end_frame, delay), delay + 850);
    })
}