if(document.images) {
var imgs = new Array();
imgs[0] = new Image(); imgs[0].src = "./img/top01.gif";
imgs[1] = new Image(); imgs[1].src = "./img/top11.gif";
imgs[2] = new Image(); imgs[2].src = "./img/about02.gif";
imgs[3] = new Image(); imgs[3].src = "./img/about12.gif";
imgs[4] = new Image(); imgs[4].src = "./img/profile03.gif";
imgs[5] = new Image(); imgs[5].src = "./img/profile13.gif";
imgs[6] = new Image(); imgs[6].src = "./img/bbs001.gif";
imgs[7] = new Image(); imgs[7].src = "./img/bbs011.gif";
imgs[8] = new Image(); imgs[8].src = "./img/mail02.gif";
imgs[9] = new Image(); imgs[9].src = "./img/mail12.gif";
imgs[10] = new Image(); imgs[10].src = "./img/link02.gif";
imgs[11] = new Image(); imgs[11].src = "./img/link12.gif";
imgs[12] = new Image(); imgs[12].src = "./img/siro1.gif";
imgs[13] = new Image(); imgs[13].src = "./img/siro2.gif";
imgs[14] = new Image(); imgs[14].src = "./img/fusa1.gif";
imgs[15] = new Image(); imgs[15].src = "./img/fusa2.gif";
imgs[16] = new Image(); imgs[16].src = "./img/koge1.gif";
imgs[17] = new Image(); imgs[17].src = "./img/koge2.gif";

}
function chgimg(id, imgname) {
if(document.images) {
if(imgs[imgname]) {
document.images[id].src = imgs[imgname].src;
}
else {
document.images[id].src = imgname;
}
}
}