function $(id){
return document.getElementById(id);
}

var CurMenu = null;
var CurMenuGroup = null;
var CurSubMenu = null;

function InitMenu(id){
var o = $("menu");
var list = o.getElementsByTagName("div");
for(var n = 0; n < list.length; n++){
	if(list[n].className == "m1on"){
		CurMenu = list[n];
		break;
	}
}
CurMenuGroup = $(id);
}

function Menu(o, id, p){
var so = $(id);
if(CurMenuGroup != null && p == true){
	CurMenuGroup.style.display = "none";
	if(CurMenu.className == "m1on")	CurMenu.className = "m1off";
	if(CurMenu.className == "m2on") CurMenu.className = "m2off";
}
if(so.style.display == ""){
	so.style.display = "none";
	if(o.className == "m1on")	o.className = "m1off";
	if(o.className == "m2on")	o.className = "m2off";
}else{
	so.style.display = "";
	if(o.className == "m1off")	o.className = "m1on";
	if(o.className == "m2off")	o.className = "m2on";
}
CurMenu = o;
CurMenuGroup = so;
}

function MenuItem(o, url){
if(CurSubMenu != null){
	if(CurSubMenu.className == "m1itemcur")	CurSubMenu.className = "m1item";
	if(CurSubMenu.className == "m2itemcur")	CurSubMenu.className = "m2item";
}
if(o.className == "m1item")	o.className = "m1itemcur";
if(o.className == "m2item")	o.className = "m2itemcur";
CurSubMenu = o;
if(url)$("mainframe").src = url;
}