// ROLLOVER SCRIPT
if (document.images) {

    aboutOn = new Image();
    aboutOn.src = "/images/main_nav/about_on.gif";
    servicesOn = new Image();
    servicesOn.src = "/images/main_nav/services_on.gif";
    clientsOn = new Image();
    clientsOn.src = "/images/main_nav/clients_on.gif";
    experienceOn = new Image();
    experienceOn.src = "/images/main_nav/experience_on.gif";
    contactOn = new Image();
    contactOn.src = "/images/main_nav/contact_on.gif";

    aboutOff = new Image();
    aboutOff.src = "/images/main_nav/about_off.gif";
    servicesOff = new Image();
    servicesOff.src = "/images/main_nav/services_off.gif";
    clientsOff = new Image();
    clientsOff.src = "/images/main_nav/clients_off.gif";
    experienceOff = new Image();
    experienceOff.src = "/images/main_nav/experience_off.gif";
    contactOff = new Image();
    contactOff.src = "/images/main_nav/contact_off.gif";

    clientsSel = new Image();
    clientsSel.src = "/images/main_nav/clients_sel.gif";

    experienceSel = new Image();
    experienceSel.src = "/images/main_nav/experience_sel.gif";

}

// function to activate rollover images
function imgOn(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName + "On.src");
    }
}

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

function imgSel(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName + "Sel.src");
    }
}