//プレロード
BtnImg = new Array();
for(i=0; i<=15; i++) {
BtnImg[i] = new Image();
}
BtnImg[0].src = "images_all/btn_home_o.jpg";
BtnImg[1].src = "images_all/btn_book_o.jpg";
BtnImg[2].src = "images_all/btn_craft_o.jpg";
BtnImg[3].src = "images_all/btn_diary_o.jpg";
BtnImg[4].src = "images_all/btn_first_o.jpg";
BtnImg[5].src = "images_all/btn_pay_o.jpg";
BtnImg[6].src = "images_all/btn_member_o.jpg";
BtnImg[7].src = "images_all/btn_inq_o.jpg";
BtnImg[8].src = "images_all/cat_01_o.gif";
BtnImg[9].src = "images_all/cat_02_o.gif";
BtnImg[10].src = "images_all/cat_03_o.gif";
BtnImg[11].src = "images_all/cat_04_o.gif";
BtnImg[12].src = "images_all/cat_05_o.gif";
BtnImg[13].src = "images_all/cat_06_o.gif";
BtnImg[14].src = "images_all/cat_07_o.gif";
BtnImg[15].src = "images_all/cat_08_o.gif";