var open_menu = false;
var timer = null;

function showMenu(id){
	var submenus = document.getElementById('submenu').childNodes;
	for(var i = 0; i < submenus.length; i++){
		if(submenus[i].id != undefined){
			submenus[i].className = "hidden";
		}
	}
	if(document.getElementById(id) != undefined)
		document.getElementById(id).className= "";
}

function doCloseMenu(){
	if(!open_menu)
		showMenu(selected);
}

function openMenu(){
	open_menu = true;
}

function closeMenu(){
	open_menu = false;
	if(timer != null){
		window.clearTimeout(timer);
		time = null;
	}
	timer = window.setTimeout("doCloseMenu()",1000);
}