var currentMenu = null;
var aa = null;
var bb = null;


function showMenu(menuItem, myNav) {
			var myMenu = document.getElementById(menuItem);
			if(currentMenu != null && menuItem != currentMenu ) {
			hideMenu();
		}
						myMenu.style.visibility = "visible";
						currentMenu = menuItem;
						document.div.style.visibility= "visible";

}
function hideMenu(menuItem, myNav) {
			var myMenu = document.getElementById(currentMenu);

			myMenu.style.visibility = "hidden";
			currentMenu = menuItem;
}

function startTimer(time)
{
	if(time == null)
		time = 80;
	timeOn = setTimeout("hideMenu()",time);
}

function showItems(name, image,targ) {
     stopTimer();
	if(targ != null) document.images[targ].src=image;
	ff = name;

    if(name != null) showMenu(name);
}

function hideItems(name, targ) {
	document.images[targ].src=name; 
	startTimer('80');
}

function stopTimer()
{
	clearTimeout(timeOn);
}

function menucon(id2) {
	var href = document.getElementById('h'+id2);
	var obj=document.getElementById(id2);
    
	if(obj.style.display != 'none' && href!='undefined' && href!=null)
	{
		location.href = href;
		return true;
	} 
	 if (obj.style.display=='none'){
		 obj.style.visibility = "visible";
		 obj.style.display = "";
		 
	 }
	 else {
		 obj.style.visibility = "hiiden";
		 obj.style.display = "none";
	}
return false;
}