function smartRollover() {
/*
	if(document.getElementsByTagName) {
		var images = document.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."));
				}
			}
		}
	}
*/
}

/*20071109 IE6スクリプトエラーのため
function highlightpage(){
	if(!document.getElementsByTagName) return fales;
	if(!document.getElementById) return fales;
	if(!document.getElementById("menu")) return fales;
	var nav = document.getElementById("menu");
	var links = nav.getElementsByTagName("a");
	for(var i=0; i<links.length; i++){
		var linkurl = links[i].getAttribute("href");
		var currenturl = window.location.href;
		if(currenturl.indexOf(linkurl) != -1){
			var linkimages = links[i].getElementsByTagName("img")[0];
			var src_replace = linkimages.getAttribute("src").replace("_off.", "_on.");
			linkimages.setAttribute("src",src_replace);
		}
	}
}


**ここは未動作で**

if (document.all) {
    var src_replace = linkimages.getAttribute("src").replace("_off.", "_set.");
    alert("IEとか");
}else if (document.getElementById) {
    var src_replace = linkimages.getAttribute("src").replace("_off.", "_set.");
    alert("FF");
}
*/



if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
	/*window.addEventListener("load", highlightpage, false);*/
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
	/*window.attachEvent("onload", highlightpage);*/
}