protected override void OnTarget(Mobile m, object o)
            {
                IPoint3D point = (IPoint3D)o;

                switch (c_Type)
                {
                case TargetType.BanLoc:
                    c_Sign.BanLoc = new Point3D(point.X, point.Y, point.Z);
                    c_Gump.NewGump();
                    break;

                case TargetType.SignLoc:
                    c_Sign.SignLoc = new Point3D(point.X, point.Y, point.Z);
                    c_Sign.MoveToWorld(c_Sign.SignLoc, c_Sign.Map);
                    c_Sign.Z -= 5;
                    c_Sign.ShowSignPreview();
                    c_Gump.NewGump();
                    break;

                case TargetType.MinZ:
                    c_Sign.MinZ = point.Z;

                    if (c_Sign.MaxZ < c_Sign.MinZ + 19)
                    {
                        c_Sign.MaxZ = point.Z + 19;
                    }

                    if (c_Sign.MaxZ == short.MaxValue)
                    {
                        c_Sign.MaxZ = point.Z + 19;
                    }

                    c_Gump.NewGump();
                    break;

                case TargetType.MaxZ:
                    c_Sign.MaxZ = point.Z + 19;

                    if (c_Sign.MinZ > c_Sign.MaxZ)
                    {
                        c_Sign.MinZ = point.Z;
                    }

                    c_Gump.NewGump();
                    break;

                case TargetType.BlockOne:
                    m.SendMessage("Now target the south eastern corner.");
                    m.Target = new InternalTarget(c_Gump, c_Sign, TargetType.BlockTwo, new Point3D(point.X, point.Y, point.Z));
                    break;

                case TargetType.BlockTwo:
                    c_Sign.Blocks.Add(FixRect(new Rectangle2D(c_BoundOne, new Point3D(point.X + 1, point.Y + 1, point.Z))));
                    c_Sign.UpdateBlocks();
                    c_Sign.ShowAreaPreview(m);
                    c_Gump.NewGump();
                    break;
                }
            }