var homeoff = new Image();
  homeoff.src = "images/home_off.gif";
  var homeon = new Image();
  homeon.src = "images/home_on.gif";

  var resortoff = new Image();
  resortoff.src = "images/resort_off.gif";
  var resorton = new Image();
  resorton.src = "images/resort_on.gif";

  var cabinsoff = new Image();
  cabinsoff.src = "images/cabins_off.gif";
  var cabinson = new Image();
  cabinson.src = "images/cabins_on.gif";

  var rvparkoff = new Image();
  rvparkoff.src = "images/rvpark_off.gif";
  var rvparkon = new Image();
  rvparkon.src = "images/rvpark_on.gif";

  var attractionsoff = new Image();
  attractionsoff.src = "images/attractions_off.gif";
  var attractionson = new Image();
  attractionson.src = "images/attractions_on.gif";

  var eventsoff = new Image();
  eventsoff.src = "images/events_off.gif";
  var eventson = new Image();
  eventson.src = "images/events_on.gif";

  var contactoff = new Image();
  contactoff.src = "images/contact_off.gif";
  var contacton = new Image();
  contacton.src = "images/contact_on.gif";

  var rlinksoff = new Image();
  rlinksoff.src = "images/rlinks_off.gif";
  var rlinkson = new Image();
  rlinkson.src = "images/rlinks_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  isMenuAct = false; // the menu is no longer active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");
}