fileLoadingImage = 
　"http://blog-imgs-23.fc2.com/k/i/d/kidneys/loading.gif";
fileBottomNavCloseImage =
　"http://blog-imgs-23.fc2.com/k/i/d/kidneys/closelabel.gif";

Lightbox.prototype.showImage = function() {
　Element.hide('loading');
　myLightbox.updateDetails(); 
　if(imageArray.length <= 1) {
　　document.getElementById('lightboxImage').onclick =
　　function() {
　　　myLightbox.end(); return false;
　　}
　}
　this.preloadNeighborImages();
}