navImg = new Image();
navImg.src = "images/nav/image01MO.jpg";
navImg = new Image();
navImg.src = "images/nav/image02MO.jpg";
navImg = new Image();
navImg.src = "images/nav/image03MO.jpg";
navImg = new Image();
navImg.src = "images/nav/image04MO.jpg";