function turnPeriodical(pe) {
	
	// Variable statique
	if ( typeof this.sens == 'undefined' ) this.sens = 1;
	if ( typeof this.counter == 'undefined' ) this.counter = 6;
	
	if (this.sens == 1) {
		if (this.counter > 1) {
			hidePicture('home_image_'+this.counter);
			this.counter--;
		}
		else {
			this.sens = 0;
			return turnPeriodical(pe);
		}
	}
	else {
		if (this.counter < 6) {
			this.counter++;
			showPicture('home_image_'+this.counter);
		}
		else {
			this.sens = 1;
			return turnPeriodical(pe);
		}
	}
}

function showPicture(id) {
	$(id).appear();
}

function hidePicture(id) {
	$(id).fade();
}