function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;
}
}

function changeImages() {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<changeImages.arguments.length; i+=2) {
document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
}
}
}

var preloadFlag = false;
function preloadImages() {
if (document.images) {
b_link_access = newImage("renewal/common_image/b_link_access_on.gif");
b_link_dousoukai = newImage("renewal/common_image/b_link_dousoukai_on.gif");
b_link_frontier = newImage("renewal/common_image/b_link_frontier_on.gif");
b_link_honkenkyuuka = newImage("renewal/common_image/b_link_honkenkyuuka_on.gif");
b_link_koubo = newImage("renewal/common_image/b_link_koubo_on.gif");
b_link_meibo = newImage("renewal/common_image/b_link_meibo_on.gif");
b_link_prospectus = newImage("renewal/common_image/b_link_prospectus_on.gif");
b_link_sitemap = newImage("renewal/common_image/b_link_sitemap_on.gif");
b_link_yokuaru = newImage("renewal/common_image/b_link_yokuaru_on.gif");
b_link_annai = newImage("renewal/image/b_link_annai_on.gif");
b_link_sousei = newImage("renewal/image/b_link_sousei_on.gif");
b_link_kenkyuuka_news = newImage("renewal/image/b_link_kenkyuuka_news_on.gif");
s_aisatsu = newImage("renewal/common_image/s_aisatsu_on.jpg");
s_syushi = newImage("renewal/common_image/s_syushi_on.jpg");
s_campusmap = newImage("renewal/common_image/s_campusmap_on.jpg");
s_faq = newImage("renewal/common_image/s_faq_on.jpg");
s_contact = newImage("renewal/common_image/s_contact_on.jpg");
s_exam = newImage("renewal/common_image/s_exam_on.jpg");
s_teacher = newImage("renewal/common_image/s_teacher_on.jpg");
s_kougi = newImage("renewal/common_image/s_kougi_on.jpg");
s_member = newImage("renewal/common_image/s_member_on.jpg");
s_pros = newImage("renewal/common_image/s_pros_on.jpg");
s_ilo = newImage("renewal/common_image/s_ilo_on.jpg");
s_information = newImage("renewal/common_image/s_information_on.jpg");
s_sosei = newImage("renewal/common_image/s_sosei_on.jpg");
s_fnet = newImage("renewal/common_image/s_f-net_on.jpg");
s_fsnet = newImage("renewal/common_image/s_fsnet_on.jpg");
preloadFlag = true;
}
}