function diaporama(src, className) {
	regex = new RegExp('[a-z]+(\\d{1,2})\.[a-z]{3,4}', 'i');
	id = parseInt(regex.exec(src)[1]);
	img = document.getElementsByClassName(className);
	for (i = 0; i < img.length; i++) img[i].style.display = 'none';
	img[(id == img.length) ? 0 : id].style.display = 'inline';
}