if (document.images) {
shiyakusho_off = new Image(175, 28);
shiyakusho_off.src = 'images/banner_hakodateshi/pic_shiyakusho.gif';
shiyakusho_over = new Image(175, 28);
shiyakusho_over.src = 'images/banner_hakodateshi/pic_shiyakusho_over.gif';
}

function di(id,name) {
if (document.images) {
document.images[id].src=eval(name+".src");}
}