function GetElement( e )
    {
        if(document.all) return document.all[e];
        else return document.getElementById(e);
    }
    
    
    
    function MenuDisplay( id )
    {
        id = GetElement( 'SubMenu_' + id );
        id.style.display = '';
    }
    
    
    
    function MenuHide( id )
    {
        id = GetElement( 'SubMenu_' + id );
        id.style.display='none';
    }