function afficheMaxi(chemin, Titre) {
i1 = new Image;
i1.src = chemin;
html = ''+Titre+'
';
popupImage = window.open('','_blank','toolbar=0,location=0,directories=0,menuBar=0,scrollbars=0,resizable=0');
popupImage.document.open();
popupImage.document.write(html);
popupImage.document.close();
}