/* ロールオーバー--------------------------------- */


function iconrollover() {
if(document.getElementsByTagName) {
var images = document.getElementsByTagName("img");

for(var i=0; i < images.length; i++) {
if(images[i].getAttribute("src").match("_down."))
{
images[i].onmouseover = function() {
this.setAttribute("src", this.getAttribute("src").replace("_down.", "_over."));
}
images[i].onmouseout = function() {
this.setAttribute("src", this.getAttribute("src").replace("_over.", "_down."));
}
}
}
}
}

if(window.addEventListener) {
window.addEventListener("load", iconrollover, false);
}
else if(window.attachEvent) {
window.attachEvent("onload", iconrollover);
}