window.onload = function() {
disp();
preloadImages('top_img/title.gif','top_img/top_button_01_ro.gif','top_img/top_button_02_ro.gif','top_img/top_button_03_ro.gif','top_img/top_button_04_ro.gif','top_img/top_button_05_ro.gif');
}

// JavaScript Document