function PopupImage(img) {
titre="idf-echecs.com - image agrandie";
w=window.open("",'image','width=790,height=640,status=no,menubar=no,toolbar=no,scrollbars=no,resizable=yes, top=30, left=30');
w.document.write(""+titre+"");
if (navigator.appName.indexOf("Explorer") > -1)
{w.document.write("