private static void read_map_corporation(XmlReader Input_XmlReader, Map_Info mapInfo)
        {
            if (Input_XmlReader.MoveToAttribute("id"))
            {
                try
                {
                    long corpid = Convert.ToInt64(Input_XmlReader.Value.Replace("COR", "").Replace("P", ""));

                    string type = String.Empty;
                    string primary_name = String.Empty;
                    List<string> alternate_names = new List<string>();

                    while (Input_XmlReader.Read())
                    {
                        if ((Input_XmlReader.NodeType == XmlNodeType.EndElement) && (Input_XmlReader.Name == "map:corporation"))
                        {
                            if ((corpid > 0) && (primary_name.Length > 0))
                            {
                                Map_Corporation thisCorp = mapInfo.New_Corporation(corpid, primary_name);
                                foreach (string altName in alternate_names)
                                    thisCorp.Add_Alt_Name(altName);
                            }
                            return;
                        }

                        if ((Input_XmlReader.NodeType == XmlNodeType.Element) && (Input_XmlReader.Name == "map:corpname") && (!Input_XmlReader.IsEmptyElement))
                        {
                            if (Input_XmlReader.MoveToAttribute("type"))
                                type = Input_XmlReader.Value;
                            else
                                type = String.Empty;

                            Input_XmlReader.Read();
                            if (Input_XmlReader.NodeType == XmlNodeType.Text)
                            {
                                if ((type.Length == 0) || (type == "primary"))
                                    primary_name = Input_XmlReader.Value;
                                else
                                    alternate_names.Add(Input_XmlReader.Value);
                            }
                        }
                    }
                }
                catch
                {
                }
            }
        }