var imgs = {
  "image_1" : "images/com_ind_lg001.jpg",
  "image_2" : "images/com_ind_lg002.jpg",
  "image_3" : "images/com_ind_lg003.jpg",
  "image_4" : "images/com_ind_lg004.jpg",
  "image_5" : "images/com_ind_lg005.jpg",
  "image_6" : "images/com_ind_lg006.jpg",
  "image_7" : "images/com_ind_lg007.jpg",
  "image_8" : "images/com_ind_lg008.jpg",
  "image_9" : "images/com_ind_lg009.jpg"
};
Event.observe(window, "load", function() {
  preloadImages();
});