(function() {
  var MenuPics = [
    'images/menu/maps_on.jpg',
    'images/menu/plaza_on.jpg',
    'images/menu/shops_on.jpg',
    'images/menu/foods_on.jpg',
    'images/menu/health_on.jpg',
    'images/menu/offers_on.jpg'
  ], preLoadMenu = [];
  for (var i = 0; i < MenuPics.length; i++)
  {
    preLoad[i] = new Image();
    preLoad[i].src = MenuPics[i];
  }
})();