function openPopup(url, largeur, hauteur){
gauche = (screen.width/2)-(largeur/2);
haut = (screen.height/2)-(hauteur/2);
window.open(url,"popup","height="+hauteur+",width="+largeur+",status = no,toolbar = no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+haut+",left ="+gauche);
}
function openImgPopup(img, imgWidth, imgHeight) {
titre="Agrandissement";
w=open("",'image','width=200,height=200,toolbar=no,scrollbars=no,resizable=no');
w.document.write(""+titre+"");
w.document.write("