function MenuMouse_Off(obj, target){
	if(target != "" && document.getElementById(target) != null){
		document.getElementById(target).style.visibility = "hidden";
	}
}
function MenuMouse_On(obj, target){
	if(target != "" && document.getElementById(target) != null){
		document.getElementById(target).style.visibility = "visible";
	}
}

function displaySubMenu(li)
{
var subMenu = li.getElementsByTagName("ul")[0];
subMenu.style.display = "block";
}
function hideSubMenu(li)
{
var subMenu = li.getElementsByTagName("ul")[0];
subMenu.style.display = "none";
}