if (document.images) {

//rollovers
                about = new Image();
                services = new Image();
                foundation = new Image();
                cfdd = new Image();
                resources = new Image();
                contact = new Image();
                
                about_on = new Image();
                services_on = new Image();
                foundation_on = new Image();
                cfdd_on = new Image();
                resources_on = new Image();
                contact_on = new Image();

                about_on.src = "/_images/nav_about_on.gif";
                services_on.src = "/_images/nav_services_on.gif";
                foundation_on.src = "/_images/nav_foundation_on.gif";
                cfdd_on.src = "/_images/nav_cfdd_on.gif";
                resources_on.src = "/_images/nav_resources_on.gif";
                contact_on.src = "/_images/nav_contact_on.gif";
                
                about.src = "/_images/nav_about.gif";
                services.src = "/_images/nav_services.gif";
                foundation.src = "/_images/nav_foundation.gif";
                cfdd.src = "/_images/nav_cfdd.gif";
                resources.src = "/_images/nav_resources.gif";
                contact.src = "/_images/nav_contact.gif";
}

function buttonOn(imageName) {
        if (document.images) {
                document[imageName].src = eval(imageName + "_on.src")
                }
        }

function buttonOff(imageName) {
        if (document.images) {
                document[imageName].src = eval(imageName + ".src")
                }
        }