if (document.images)
{
    image1on = new Image();
    image1on.src = "/images/nav_about_on.gif";
    
    image2on = new Image();
    image2on.src = "/images/nav_services_on.gif";
    
    image3on = new Image();
    image3on.src = "/images/nav_refer_on.gif";
    
    image4on = new Image();
    image4on.src = "/images/nav_order_on.gif";
    
    image5on = new Image();
    image5on.src = "/images/nav_customer_on.gif";
    
    image6on = new Image();
    image6on.src = "/images/nav_press_on.gif";
    
    image7on = new Image();
    image7on.src = "/images/nav_employment_on.gif";
    
    image8on = new Image();
    image8on.src = "/images/nav_contact_on.gif";
    
    
    image1off = new Image();
    image1off.src = "/images/nav_about_off.gif";
    
    image2off = new Image();
    image2off.src = "/images/nav_services_off.gif";
    
    image3off = new Image();
    image3off.src = "/images/nav_refer_off.gif";
    
    image4off = new Image();
    image4off.src = "/images/nav_order_off.gif";
    
    image5off = new Image();
    image5off.src = "/images/nav_customer_off.gif";
    
    image6off = new Image();
    image6off.src = "/images/nav_press_off.gif";
    
    image7off = new Image();
    image7off.src = "/images/nav_employment_off.gif";
    
    image8off = new Image();
    image8off.src = "/images/nav_contact_off.gif";
}

function changeImages()
{
    if (document.images)
    {
        for (var i=0; i<changeImages.arguments.length; i+=2)
        {
            document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
        }
    }
}