trList = ["treeMenu0","treeMenu1","treeMenu2","treeMenu3","treeMenu4","treeMenu5","treeMenu6","treeMenu7","treeMenu8","treeMenu9"];	//　ツリーメニューのリスト
function exMenu(tName)
{
	for (i=0; i<trList.length; i++) eval(trList[i]).style.display = "none";
	tMenu = eval(tName).style;
	if (tMenu.display == 'none') tMenu.display = "block"; else tMenu.display = "none";
}