function showSubNav(listId)
{

    var List = document.getElementById(listId);
    List.style.display = "block";
    
    var LI = List.parentNode;
    LI.className = "nav_selected";
}


function hideSubNav(listId)
{

    var List = document.getElementById(listId);
    List.style.display = "none";
    
    var LI = List.parentNode;
    
    
    if (LI.id.indexOf('about') != -1)
    {
        if (location.pathname != "/About.aspx")
        {
            LI.className = "";
        }
    }
    
    if (LI.id.indexOf('play') != -1)
    {
        if (location.pathname != "/How-To-Play.aspx")
        {
            LI.className = "";
        }
    }
    

}