/* -----画像 ロールオーバー-------------------- 
imgタグで「○○_off.***」を配置すれば自動的に「○○_on.***」でロールオーバー
 
2行目のsmartRollover('*****');　*****にID名

smartRollover('****1');
smartRollover('****2');

複数行も可
------------------------------------------- */
function smartOver() {
smartRollover('wrapper');
}
function smartRollover(idName) {
if(document.getElementById(idName)){
var images = document.getElementById(idName).getElementsByTagName("img");

for(var i=0; i < images.length; i++) {
if(images[i].getAttribute("src").match(/_off\./))
{
images[i].onmouseover = function() {
this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
}
images[i].onmouseout = function() {
this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
}
}
}
}
}
if(window.addEventListener) {
window.addEventListener("load", smartOver, false);
}
else if(window.attachEvent) {
window.attachEvent("onload", smartOver);
}
else{
window.onload = smartOver;
}