function SwapItems(id1, id2) {

	new Effect.Fade('Photo_' + id1);
	//document.getElementById('Caption_' + id1).style.display = 'none';
	//new Effect.Fade('Caption_' + id1, {duration:0.5});
	new Effect.Appear('Photo_' + id2);
	//new Effect.Appear('Caption_' + id2);
}
function SlideShow(a) {
	var slides = a;
	var x = 0;
     while(x<slides.length-1){
	alert(slides[x]+" "+slides[x+1]);
		setTimeout("SwapItems('"+slides[x]+"','"+slides[x+1]+"');", 10000);
	 x++;
	}	
		setTimeout("SlideShow("+slides+");", 20001);
	
}
//SlideShow();
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('Photo_' + frame);
            if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
            Effect.Appear('Photo_' + frame);
            setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay);
        })
    }