// ファイル
function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("nav-"))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("nav-", "navon-"));
				}
				// 現在のページでないならば
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("navon-", "nav-"));
					//setImageOn(imageNameOn);	
				}
			}
		}
	}
}

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

function setImageOn(ino)
{
	if(ino != "")
	{
		var offSrc = document.getElementById(ino).src;	
		offSrc = offSrc.replace("nav-", "navon-");
		document.getElementById(ino).src = offSrc;
	}
}

window.onload = function(){
	//setImageOn(imageNameOn);	
}