function affichage_popup(nom_de_la_page, nom_interne_de_la_fenetre)
{
window.open (nom_de_la_page, nom_interne_de_la_fenetre, config='height=200, width=400, top=100, left=100, toolbar=yes, menubar=yes, location=yes, resizable=yes, scrollbars=yes, status=yes')
}