function afficheMaxi(chemin)
{
i1 = new Image;
i1.src = chemin;
html = 'VISUALISATION
';
popupImage = window.open('','_blank','left=0,top=0,toolbar=0,location=0,directories=0,menuBar=0,scrollbars=0,resizable=1');
popupImage.document.open();
popupImage.document.write(html);
popupImage.document.close()
}