//ファンクション
tmp = "";
function MenuOn(x){
	tmp = document.getElementById("submenu"+x).parentElement.getAttribute("class");
	document.getElementById("submenu"+x).style.visibility="visible";
	document.getElementById("submenu"+x).parentElement.setAttribute("class","mainselect"+x);
	//alert(document.getElementById("submenu"+x).parentElement.getAttribute("class"));
}

function MenuOff(x){
	document.getElementById("submenu"+x).style.visibility="hidden";
	if(tmp == "mainmenu"+x){
		document.getElementById("submenu"+x).parentElement.setAttribute("class","mainmenu"+x);
	}
}