if (document.images) {
    nav1on = new Image(72, 76);
    nav1on.src = "images/nav/btn2_01.jpg";

    nav1off = new Image(72, 76);
    nav1off.src = "images/nav/btn_01.jpg";

    nav2on = new Image(68, 76);
    nav2on.src = "images/nav/btn2_02.jpg";

    nav2off = new Image(68, 76);
    nav2off.src = "images/nav/btn_02.jpg";

    nav3on = new Image(104, 76);
    nav3on.src = "images/nav/btn2_03.jpg";

    nav3off = new Image(104, 76);
    nav3off.src = "images/nav/btn_03.jpg";

    nav4on = new Image(126, 76);
    nav4on.src = "images/nav/btn2_04.jpg";

    nav4off = new Image(126, 76);
    nav4off.src = "images/nav/btn_04.jpg";

    nav5on = new Image(85, 76);
    nav5on.src = "images/nav/btn2_05.jpg";

    nav5off = new Image(85, 76);
    nav5off.src = "images/nav/btn_05.jpg";

    nav6on = new Image(113, 76);
    nav6on.src = "images/nav/btn2_06.jpg";

    nav6off = new Image(113, 76);
    nav6off.src = "images/nav/btn_06.jpg";

    hunt1on = new Image(113, 76);
    hunt1on.src = "images/hunt/hunt2_01.jpg";

    hunt1off = new Image(113, 76);
    hunt1off.src = "images/hunt/hunt_01.jpg";
    
    hunt2on = new Image(113, 76);
    hunt2on.src = "images/hunt/hunt2_02.jpg";

    hunt2off = new Image(113, 76);
    hunt2off.src = "images/hunt/hunt_02.jpg";

    hunt3on = new Image(113, 76);
    hunt3on.src = "images/hunt/hunt2_03.jpg";

    hunt3off = new Image(113, 76);
    hunt3off.src = "images/hunt/hunt_03.jpg";

    hunt4on = new Image(113, 76);
    hunt4on.src = "images/hunt/hunt2_04.jpg";

    hunt4off = new Image(113, 76);
    hunt4off.src = "images/hunt/hunt_04.jpg";

    hunt5on = new Image(113, 76);
    hunt5on.src = "images/hunt/hunt2_05.jpg";

    hunt5off = new Image(113, 76);
    hunt5off.src = "images/hunt/hunt_05.jpg";

    hunt6on = new Image(113, 76);
    hunt6on.src = "images/hunt/hunt2_06.jpg";

    hunt6off = new Image(113, 76);
    hunt6off.src = "images/hunt/hunt_06.jpg";

    hunt7on = new Image(113, 76);
    hunt7on.src = "images/hunt/hunt2_07.jpg";

    hunt7off = new Image(113, 76);
    hunt7off.src = "images/hunt/hunt_07.jpg";

    hunt8on = new Image(113, 76);
    hunt8on.src = "images/hunt/hunt2_08.jpg";

    hunt8off = new Image(113, 76);
    hunt8off.src = "images/hunt/hunt_08.jpg";

    hunt9on = new Image(113, 76);
    hunt9on.src = "images/hunt/hunt2_09.jpg";

    hunt9off = new Image(113, 76);
    hunt9off.src = "images/hunt/hunt_09.jpg";
    
    bookhunton = new Image(113, 76);
    bookhunton.src = "images/bookhunt2.png";

    bookhuntoff = new Image(113, 76);
    bookhuntoff.src = "images/bookhunt.png";

    createdbyon = new Image(113, 76);
    createdbyon.src = "images/wmm2.png";

    createdbyoff = new Image(113, 76);
    createdbyoff.src = "images/wmm.png"; 
}
function lightup(imgName) {
    if (document.images) {
        imgOn = eval(imgName + "on.src");
        document[imgName].src = imgOn;
    }
}

function turnoff(imgName) {
    if (document.images) {
        imgOff = eval(imgName + "off.src");
        document[imgName].src = imgOff;
    }
}