public string GridParameter(string gridName, string parm)
        {
            CheckInit();
            string ret        = null;
            string lookupGrid = gridName;

            if (gridName == "CURRENT")
            {
                lookupGrid = m_currentGrid;
            }
            try {
                if (m_gridInfo.HasParameter(lookupGrid))
                {
                    OMVSD.OSDMap gInfo = (OMVSD.OSDMap)m_gridInfo.ParamValue(lookupGrid);
                    ret = gInfo[parm].AsString();
                }
            }
            catch {
                ret = null;
            }
            return(ret);
        }