image1 = new Image();
    image1.src = "nav-layout-on_01.jpg";
    image1 = new Image();
    image1.src = "nav-layout-on_02.jpg";
    image1 = new Image();
    image1.src = "nav-layout-on_03.jpg";
    image1 = new Image();
    image1.src = "nav-layout-on_04.jpg";
    image1 = new Image();
    image1.src = "nav-layout-on_05.jpg";
    image1 = new Image();
    image1.src = "nav-layout-on_06.jpg";
    image1 = new Image();
    image1.src = "nav-layout-on_07.jpg";