//【ここから】画像ロールオーバー
function smartRollover() {
	if (document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");
		var imagesTmp = new Object();
		for (i=0; i < images.length; i++) {
			if (images[i].getAttribute("src").indexOf("_off.")!=-1)
			{
				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."));
				}
				imagesTmp[i] = new Image();
				imagesTmp[i].src = images[i].src.replace("_off.", "_on.");
			}
		}
		var input = document.getElementsByTagName("input");
		var inputTmp = new Object();
		for (i=0; i < input.length; i++) {
			if (input[i].getAttribute("src") && input[i].getAttribute("src").indexOf("_off.")!=-1)
			{
				input[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				input[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
				inputTmp[i] = new Image();
				inputTmp[i].src = input[i].src.replace("_off.", "_on.");
			}
		}
	}
}
//【ここまで】画像ロールオーバー


//【ここから】サブメニュー
// ※prototype.js バージョン1.6以上が必要
function setPopUpMenu() {
	var parents = $$('ul.mainMenu>li');
	for (i=0; i<parents.length; i++)
	{
		parents[i].style.zIndex = parents.length - i;
		parents[i].onmouseover = showMenu;
		parents[i].onmouseout = hideMenu;
		Element.cleanWhitespace(parents[i]);
	}
	var popUp = document.getElementsByClassName("popUp");
	for (i=0; i<popUp.length; i++)
	{
		popUp[i].onmouseover = function() {
			menuReset();
			this.style.display = "block";
		}
		popUp[i].onmouseout = function() {
			this.style.display = "none";
		}
	}
	if ($("PagebodyR")) {
		$("PagebodyR").onmouseover = function() {
			menuReset();
		}
	}
	if ($("PagebodyR_sav")) {
		$("PagebodyR_sav").onmouseover = function() {
			menuReset();
		}
	}
}

function menuReset() {
	var popUp = document.getElementsByClassName("popUp");
	for (i=0; i<popUp.length; i++)
	{
		popUp[i].style.display = "none";
	}
}

function showMenu() {
	menuReset();
	var childs = this.childNodes;
	for (i=0; i<childs.length; i++)
	{
		var elm = childs[i];
		if (String(Element.classNames(elm)).indexOf("popUp") != -1)
		{
			elm.style.display = "block";
		}
	}
}

function hideMenu() {
	var childs = this.childNodes;
	for (i=0; i<childs.length; i++)
	{
		var elm = childs[i];
		if (String(Element.classNames(elm)).indexOf("popUp") != -1)
		{
			elm.style.display = "none";
		}
	}
}
//【ここまで】サブメニュー


//【ここから】イベントリスナーへ登録
if (window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
	window.addEventListener("load", setPopUpMenu, false);
} else if (window.attachEvent) {
	window.attachEvent("onload", smartRollover);
	window.attachEvent("onload", setPopUpMenu);
}
//【ここまで】イベントリスナーへ登録