function newImage (arg) {
  if (document.images) {
    rslt = new Image ();
    rslt.src = arg;
    return rslt;
  }
}

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

var preloadFlag = false;

function preloadImages() {
  if (document.images) {
    menu1_over = newImage("images/homeB-button.jpg");
    menu2_over = newImage("images/aboutB-button.jpg");
    menu3_over = newImage("images/reviewsB-button.jpg");
    menu4_over = newImage("images/recitalsB-button.jpg");
    menu5_over = newImage("images/newsletterB-button.jpg");
    menu6_over = newImage("images/contactsB-button.jpg");
    menu7_over = newImage("images/linksB-button.jpg");
    menu8_over = newImage("images/eventsB-button.jpg");
    preloadFlag = true;
  }
}