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);
				if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
				setTimeout("Effect.Appear('slideshow" + frame + "');", 850);
				setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay + 850);
			})
		}
		
		function showConnexion(){
			Effect.BlindUp('bloc_connexion_1');
			Effect.Appear('bloc_connexion_2');
		}