trList = ["treeMenu1","treeMenu2"];
window.onload=function(){
	Nifty("li.menuitem");
	selectedmenu();
}


function exMenu(tName)
{
	temp=eval(tName).style.display;
	
	for (i=0; i<trList.length; i++) eval(trList[i]).style.display = "none";
	tMenu = eval(tName).style;
	if (temp == 'none') {
		tMenu.display = "block"; 
	}
	else {
		tMenu.display = "none";
	}
}