var nbPhotos1 = 27;
			var nbPhotos2 = 97;
			var testZone1 = 0;
			var testZone2 = 0;
			
			var timer = window.setTimeout ('testAlert()', 500);
			function relanceTimer() {
				window.clearTimeout(timer);
				timer = window.setTimeout ('testAlert()', 5000);
			}

			function testAlert() {
				var randomCible = Math.round(Math.random()) + 1;
				if(randomCible == 1 && testZone1 == 3) testAlert();
				else if(randomCible == 2 && testZone2 == 3) testAlert();
				else{
				var selectedCible = jQuery('#accueilPhotoAleat'+randomCible);
				
				if(randomCible == 1){// et test Zone1 < 3
					var randomPhoto = Math.round(Math.random() * (nbPhotos1 - 1)) + 1;
					var photoUrl = "images/accueilSculpture/photo";
					testZone2 = 0;
					testZone1 ++;
				}
				else{
					var randomPhoto = Math.round(Math.random() * (nbPhotos2 - 1)) + 1;
					var photoUrl = "images/accueilPhoto/photo";
					testZone1 = 0;
					testZone2 ++;
				}
				
				photoUrl += randomPhoto+".jpg";
				selectedCible.fadeOut(1000,
					function(){
						selectedCible.attr('src', photoUrl);
						selectedCible.fadeIn(2000);
					}
				);
				relanceTimer();
				}
	
			}