function popup_Photo(img, titre, w, h) {
var winl = (screen.width-w)/2;
var wint = (screen.height-h)/2;
settings='height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=no,toolbar=no,location=no,status=no,menubar=no,resizable=no,dependent=no'
w=open("",'image',settings);
w.document.write(""+titre+"");
w.document.write("