var preLoadImagesURL = new Array(
"../img/common/menu_top_on.jpg",
"../img/common/menu_top_off.jpg",
"../img/common/menu_info_on.jpg",
"../img/common/menu_info_off.jpg",
"../img/common/menu_stay_on.jpg",
"../img/common/menu_stay_off.jpg",
"../img/common/menu_wedding_on.jpg",
"../img/common/menu_wedding_on.jpg",
"../img/common/menu_banqet_on.jpg",
"../img/common/menu_banquet_off.jpg");

var preLoadImages = new Array(preLoadImagesURL.length);
for(i = 0; i < preLoadImages; i++){
    preLoadImages[i] = new Image();
    preLoadImages[i].src = preLoadImagesURL[i];
}