homeon = new Image();
homeon.src = "images/menu_home_on.jpg";
homeoff = new Image();
homeoff.src = "images/menu_home_off.jpg";
choose_tripon = new Image();
choose_tripon.src = "images/menu_choose_trip_on.jpg";
choose_tripoff = new Image();
choose_tripoff.src = "images/menu_choose_trip_off.jpg";
trip_dateson = new Image();
trip_dateson.src = "images/menu_trip_dates_on.jpg";
trip_datesoff = new Image();
trip_datesoff.src = "images/menu_trip_dates_off.jpg";
availabilityon = new Image();
availabilityon.src = "images/menu_availability_on.jpg";
availabilityoff = new Image();
availabilityoff.src = "images/menu_availability_off.jpg";
specialty_tripson = new Image();
specialty_tripson.src = "images/menu_specialty_trips_on.jpg";
specialty_tripsoff = new Image();
specialty_tripsoff.src = "images/menu_specialty_trips_off.jpg";
reservationson = new Image();
reservationson.src = "images/menu_reservations_on.jpg";
reservationsoff = new Image();
reservationsoff.src = "images/menu_reservations_off.jpg";
contacton = new Image();
contacton.src = "images/menu_contact_on.jpg";
contactoff = new Image();
contactoff.src = "images/menu_contact_off.jpg";