// ツリーメニュー

flag = false;

function treeMenu(tName) {
	tMenu = document.all[tName].style;
	if(tMenu.display == 'none') tMenu.display = "block";
	else tMenu.display = "none";
}



// プルダウンメニュー

flag = false;

function pullDown01() {
	if(flag) ID01.style.visibility = "hidden";
	else ID01.style.visibility = "visible";
	flag = !flag;
}

function pullDown02() {
	if(flag) ID02.style.visibility = "hidden";
	else ID02.style.visibility = "visible";
	flag = !flag;
}

function pullDown03() {
	if(flag) ID03.style.visibility = "hidden";
	else ID03.style.visibility = "visible";
	flag = !flag;
}

function pullDown04() {
	if(flag) ID04.style.visibility = "hidden";
	else ID04.style.visibility = "visible";
	flag = !flag;
}