function showSubmenu01() {
	if(document.getElementById("serviceSub").innerHTML == ''){
		document.getElementById("serviceSub").innerHTML = 
		'<img src="img/menu_service01.gif" alt="各種サービス" usemap="#Map01" href="#">';
		document.getElementById("shisetsuSub").innerHTML = '';
		document.getElementById("eventSub").innerHTML = '';}
		else{
		document.getElementById("serviceSub").innerHTML = '';}
}
function showSubmenu02() {
	if(document.getElementById("shisetsuSub").innerHTML == ''){
		document.getElementById("shisetsuSub").innerHTML = 
		'<img src="img/menu_shisetsu01.gif" alt="施設のご案内" usemap="#Map02" href="#">';
		document.getElementById("serviceSub").innerHTML = ''
		document.getElementById("eventSub").innerHTML = '';}
		else{
		document.getElementById("shisetsuSub").innerHTML = '';}
}