/*******
* Show/hide the submenu with the specified name.
********/
function showHideSubMenu( subMenuName )
{
	var menuObj = document.getElementById(subMenuName);
	
	if (menuObj != null)
		menuObj.style.display = (menuObj.style.display == "none" || menuObj.style.display=="") ? "block" : "none";
}

function showSubMenu ( subMenuName )
{
	var menuObj = document.getElementById(subMenuName);
	
	if (menuObj != null)
		menuObj.style.display = "block";
}

function hideSubMenu ( subMenuName )
{
	var menuObj = document.getElementById(subMenuName);
	
	if (menuObj != null)
		menuObj.style.display = "none";
}