if (!document.getElementById)
	document.getElementById = function() { return null; }

function initializeMenu(menuId, actuatorId) {
	var menu = document.getElementById(menuId);
	var actuator = document.getElementById(actuatorId);
	if (menu == null || actuator == null) return;
	  actuator.parentNode.style.background = "";
	  actuator.onclick = function() {
	    //close_listN();
		var display = menu.style.display;
		this.parentNode.style.background =(display == "block") ? "" : "";
		menu.style.display = (display == "block") ? "none" : "block";
	  return false;
	  }
}

window.onload = function() {
	initializeMenu("zz", "z");
	initializeMenu("aa", "a");
	initializeMenu("bb", "b");
	initializeMenu("cc", "c");
//	initializeMenu("dd", "d");
//	initializeMenu("ee", "e");
	}
	
function close_listN(){
var a = document.getElementById("a");
var b = document.getElementById("b");
var c = document.getElementById("c");
//var d = document.getElementById("d");
//var e = document.getElementById("e");
var z = document.getElementById("z");
var aa = document.getElementById("aa");
var bb = document.getElementById("bb");
var cc = document.getElementById("cc");
//var dd = document.getElementById("dd");
//var ee = document.getElementById("ee");
var zz = document.getElementById("zz");
aa.style.display='none';
bb.style.display='none';
cc.style.display='none';
//dd.style.display='none';
//ee.style.display='none';
zz.style.display='none';
a.className='m_li_a';
b.className='m_li_a';
c.className='m_li_a';
//d.className='m_li_a';
//e.className='m_li_a';
z.className='m_li_a';
}
	
function open_listN(){
var a = document.getElementById("a");
var b = document.getElementById("b");
var c = document.getElementById("c");
//var d = document.getElementById("d");
//var e = document.getElementById("e");
var z = document.getElementById("z");
var aa = document.getElementById("aa");
var bb = document.getElementById("bb");
var cc = document.getElementById("cc");
//var dd = document.getElementById("dd");
//var ee = document.getElementById("ee");
var zz = document.getElementById("zz");
aa.style.display='list-item';
bb.style.display='list-item';
cc.style.display='list-item';
//dd.style.display='list-item';
//ee.style.display='list-item';
zz.style.display='list-item';
a.className='m_li_a';
b.className='m_li_a';
c.className='m_li_a';
//d.className='m_li_a';
//e.className='m_li_a';
z.className='m_li_a';
}