function ouvre_popup(page) {
   window.open(page,"nom_popup","menubar=no, status=no, scrollbars=no, menubar=no, width=450, height=330");
}
function ouvre_fiche(page) {
   window.open(page,"nom_popup","menubar=no, status=no, scrollbars=no, menubar=no, width=580, height=350");
}