if (document.images) {img1 = new Image(); img1.src = "images/buttonover.png";}

function goToURL1() {window.location = "default.html";}
function goToURL2() {window.location = "services.html";}
function goToURL3() {window.location = "service_area.html";}
function goToURL4() {window.location = "contact.html";}

function changeImage(FRM,BTN) {window.document.forms[FRM].elements[BTN].style.backgroundImage = "url(images/buttonover.png)";
window.document.forms[FRM].elements[BTN].style.color = "#000000";}

function changeImageBack(FRM,BTN) {window.document.forms[FRM].elements[BTN].style.backgroundImage = "url(images/button.png)";
window.document.forms[FRM].elements[BTN].style.color = "#ffffff";}