function showToolbar()
{
// AddItem(id, text, hint, location, alternativeLocation);
// AddSubItem(idParent, text, hint, location, frame);

	menu = new Menu();
	menu.addItem("My_Site", "General", "Sprott Networks Service Center",  null, null);
	menu.addItem("Biology", "Biology", "Biology",  null, null);
	menu.addItem("Physics", "Physics", "Physics",  null, null);
	menu.addItem("Mathematics", "Mathematics", "Mathematics",  null, null);
	menu.addItem("Geoscience", "Geoscience", "Geoscience",  null, null);
	menu.addItem("Astronomy", "Astronomy", "Astronomy",  null, null);
	menu.addItem("Various", "Various", "Various",  null, null);


	menu.addSubItem("My_Site", "HOME", "HOME",  "http://www.sprott.net/start.html");

	menu.addSubItem("Geoscience", "OceanBook", "OceanBook",  "http://www.amcs.net/oceanbook");
	menu.addSubItem("Geoscience", "El Nino", "El Nino",  "../../../oceanographie/el_nino/");
	menu.addSubItem("Geoscience", "propriétes physiques du milieu marin", "propriétes physiques",  "../../../oceanographie/ocean/plan.htm");

	menu.addSubItem("Biology", "Ornithologie", "Ornithologie",  "../../ornithologie/naumann.htm");
	menu.addSubItem("Biology", "Insekten", "Insekten",  "index.html");

	menu.addSubItem("Physics", "Taschenbuch der Physik", "Taschenbuch der Physik",  "../../../physik/taschenbuch/");



	menu.showMenu();
}