function fwLoadMenus() {
  if (window.fw_menu_0) return;
  window.fw_menu_0 = new Menu("root",165,18);
  fw_menu_0.addMenuItem("Charpentes métalliques","location='charpente1.htm'");
  fw_menu_0.addMenuItem("Façades et menuiserie    ","location='facade1.htm'");
  fw_menu_0.addMenuItem("Serrurerie générale","location='serrurerie1.htm'");
  fw_menu_0.addMenuItem("Toitures, bardage, étanchéité","location='toiture1.htm'");
   fw_menu_0.hideOnMouseOut=true;
  window.fw_menu_1 = new Menu("root",165,18);
   fw_menu_1.addMenuItem("Clients","location='clients.htm'");
   fw_menu_1.addMenuItem("Chantiers","location='chantiers.htm'");
   fw_menu_1.hideOnMouseOut=true;
  window.fw_menu_2 = new Menu("root",165,18);
   fw_menu_2.addMenuItem("Historique","location='historique.htm'");
   fw_menu_2.addMenuItem("Organisation","location='organisation.htm'");
   fw_menu_2.addMenuItem("Technique","location='technique.htm'");
   fw_menu_2.addMenuItem("Certification","location='certif.htm'");
   fw_menu_2.hideOnMouseOut=true;

  fw_menu_2.writeMenus();
  }