public override void OnResponse(NetState sender, RelayInfo info)
        {
            if (info.ButtonID <= 0)
            {
                return;                 // Canceled
            }
            int buttonID = info.ButtonID - 1;
            int type     = buttonID % 7;
            int index    = buttonID / 7;

            BuildSystem   system  = m_BuildSystem;
            BuildGroupCol groups  = system.BuildGroups;
            BuildContext  context = system.GetContext(m_From);

            switch (type)
            {
            case 0:                     // Show group
            {
                if (context == null)
                {
                    break;
                }

                if (index >= 0 && index < groups.Count)
                {
                    context.LastGroupIndex = index;
                    m_From.SendGump(new BuildGump(m_From, system, m_Tool, null));
                }

                break;
            }

            case 1:                     // Create item
            {
                if (context == null)
                {
                    break;
                }

                int groupIndex = context.LastGroupIndex;

                if (groupIndex >= 0 && groupIndex < groups.Count)
                {
                    BuildGroup group = groups.GetAt(groupIndex);

                    if (index >= 0 && index < group.BuildItems.Count)
                    {
                        BuildItem(group.BuildItems.GetAt(index));
                    }
                }

                break;
            }

            case 2:                     // Item details
            {
                if (context == null)
                {
                    break;
                }

                int groupIndex = context.LastGroupIndex;

                if (groupIndex >= 0 && groupIndex < groups.Count)
                {
                    BuildGroup group = groups.GetAt(groupIndex);

                    if (index >= 0 && index < group.BuildItems.Count)
                    {
                        m_From.SendGump(new BuildGumpItem(m_From, system, group.BuildItems.GetAt(index), m_Tool));
                    }
                }

                break;
            }

            case 3:                     // Create item (last 10)
            {
                if (context == null)
                {
                    break;
                }

                ArrayList lastTen = context.Items;

                if (index >= 0 && index < lastTen.Count)
                {
                    BuildItem((BuildItem)lastTen[index]);
                }

                break;
            }

            case 4:                     // Item details (last 10)
            {
                if (context == null)
                {
                    break;
                }

                ArrayList lastTen = context.Items;

                if (index >= 0 && index < lastTen.Count)
                {
                    m_From.SendGump(new BuildGumpItem(m_From, system, (BuildItem)lastTen[index], m_Tool));
                }

                break;
            }

            case 5:                     // Resource selected
            {
                if (m_Page == BuildPage.PickResource && index >= 0 && index < system.BuildSubRes.Count)
                {
                    int groupIndex = (context == null ? -1 : context.LastGroupIndex);

                    BuildSubRes res = system.BuildSubRes.GetAt(index);

                    if (LokaiSkillUtilities.XMLGetSkills(m_From)[system.MainLokaiSkill].Base < res.RequiredLokaiSkill)
                    {
                        m_From.SendGump(new BuildGump(m_From, system, m_Tool, res.Message));
                    }
                    else
                    {
                        if (context != null)
                        {
                            context.LastResourceIndex = index;
                        }

                        m_From.SendGump(new BuildGump(m_From, system, m_Tool, null));
                    }
                }
                else if (m_Page == BuildPage.PickResource2 && index >= 0 && index < system.BuildSubRes2.Count)
                {
                    int groupIndex = (context == null ? -1 : context.LastGroupIndex);

                    BuildSubRes res = system.BuildSubRes2.GetAt(index);

                    if (LokaiSkillUtilities.XMLGetSkills(m_From)[system.MainLokaiSkill].Base < res.RequiredLokaiSkill)
                    {
                        m_From.SendGump(new BuildGump(m_From, system, m_Tool, res.Message));
                    }
                    else
                    {
                        if (context != null)
                        {
                            context.LastResourceIndex2 = index;
                        }

                        m_From.SendGump(new BuildGump(m_From, system, m_Tool, null));
                    }
                }

                break;
            }

            case 6:                     // Misc. buttons
            {
                switch (index)
                {
                case 0:                                 // Resource selection
                {
                    if (system.BuildSubRes.Init)
                    {
                        m_From.SendGump(new BuildGump(m_From, system, m_Tool, null, BuildPage.PickResource));
                    }

                    break;
                }

                case 1:                                 // Smelt item
                {
                    if (system.Resmelt)
                    {
                        Resmelt.Do(m_From, system, m_Tool);
                    }

                    break;
                }

                case 2:                                 // Make last
                {
                    if (context == null)
                    {
                        break;
                    }

                    BuildItem item = context.LastMade;

                    if (item != null)
                    {
                        BuildItem(item);
                    }
                    else
                    {
                        m_From.SendGump(new BuildGump(m_From, m_BuildSystem, m_Tool, 1044165, m_Page));                                             // You haven't made anything yet.
                    }
                    break;
                }

                case 3:                                 // Last 10
                {
                    if (context == null)
                    {
                        break;
                    }

                    context.LastGroupIndex = 501;
                    m_From.SendGump(new BuildGump(m_From, system, m_Tool, null));

                    break;
                }

                case 4:                                 // Toggle use resource hue
                {
                    if (context == null)
                    {
                        break;
                    }

                    context.DoNotColor = !context.DoNotColor;

                    m_From.SendGump(new BuildGump(m_From, m_BuildSystem, m_Tool, null, m_Page));

                    break;
                }

                case 5:                                 // Repair item
                {
                    if (system.Repair)
                    {
                        Repair.Do(m_From, system, m_Tool);
                    }

                    break;
                }

                case 6:                                 // Toggle mark option
                {
                    if (context == null || !system.MarkOption)
                    {
                        break;
                    }

                    switch (context.MarkOption)
                    {
                    case BuildMarkOption.MarkItem: context.MarkOption = BuildMarkOption.DoNotMark; break;

                    case BuildMarkOption.DoNotMark: context.MarkOption = BuildMarkOption.PromptForMark; break;

                    case BuildMarkOption.PromptForMark: context.MarkOption = BuildMarkOption.MarkItem; break;
                    }

                    m_From.SendGump(new BuildGump(m_From, m_BuildSystem, m_Tool, null, m_Page));

                    break;
                }

                case 7:                                 // Resource selection 2
                {
                    if (system.BuildSubRes2.Init)
                    {
                        m_From.SendGump(new BuildGump(m_From, system, m_Tool, null, BuildPage.PickResource2));
                    }

                    break;
                }

                case 8:                                 // Enhance item
                {
                    if (system.CanEnhance)
                    {
                        Enhance.BeginTarget(m_From, system, m_Tool);
                    }

                    break;
                }
                }

                break;
            }
            }
        }