var homeoff = new Image();
  homeoff.src = "images/home-off.gif";
  var homeon = new Image();
  homeon.src = "images/home-on.gif";

  var aboutoff = new Image();
  aboutoff.src = "images/about-us-off.gif";
  var abouton = new Image();
  abouton.src = "images/about-us-on.gif";

  var servicesoff = new Image();
  servicesoff.src = "images/services-off.gif";
  var serviceson = new Image();
  serviceson.src = "images/services-on.gif";

  var depositionoff = new Image();
  depositionoff.src = "images/depo-booking-off.gif";
  var depositionon = new Image();
  depositionon.src = "images/depo-booking-on.gif";

  var contactoff = new Image();
  contactoff.src = "images/contact-us-off.gif";
  var contacton = new Image();
  contacton.src = "images/contact-us-on.gif";

  var resourcesoff = new Image();
  resourcesoff.src = "images/links-off.gif";
  var resourceson = new Image();
  resourceson.src = "images/links-on.gif";

  var recipesoff = new Image();
  recipesoff.src = "images/recipes-off.gif";
  var recipeson = new Image();
  recipeson.src = "images/recipes-on.gif";

  var emailoff = new Image();
  emailoff.src = "images/email-off.gif";
  var emailon = new Image();
  emailon.src = "images/email-on.gif";


var isMenuAct = false; // the menu is not active yet

function actMenuItem(imgName) {
  isMenuAct = true; // the menu is now active
  act(imgName);
  inact(defImg);
}

function inactMenuItem(imgName) {
  isMenuAct = false; // the menu is no longer active
  if (document.images) {
    inact(imgName);
    timerID = setTimeout('if (!isMenuAct) act("' +  defImg + '")', 100);
  }
}

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

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