private void __RollSkillsButton_Click(object sender, EventArgs e)
        {
            List <Skill> pool;

            if (__UseCodexPool.Checked)
            {
                int usedCampaigns = 0;
                for (int i = 0; i < 5; ++i)
                {
                    if (_UsedCampaignsInCodex[i].Checked)
                    {
                        usedCampaigns |= (1 << i);
                    }
                }

                // Just grab the entire thing if elites are included:
                if (__IncludeElites.Checked)
                {
                    pool = SkillDatabase.GetSkillsByCampaign(usedCampaigns, false);
                }
                else
                {
                    // Gonna need to filter out the elites here:
                    pool = new List <Skill>();
                    foreach (Skill skill in SkillDatabase.GetSkillsByCampaign(usedCampaigns, false))
                    {
                        if (skill.IsElite == false)
                        {
                            pool.Add(skill);
                        }
                    }
                }
            }
            else
            {
                pool = new List <Skill>();
                foreach (Skill skill in SkillDatabase.Data)
                {
                    // You can enter this IF only if elites are included OR you aren't an elite skill (which always get included) and you also aren't a PvE only skill:
                    if ((__IncludeElites.Checked || skill.IsElite == false) && skill.Attribute != Skill.Attributes.PvE_Only)
                    {
                        pool.Add(skill);
                    }
                }
            }

            __SkillsDisplay.Skills = Challenges.RequiredSkills(pool, (int)__SkillsToPick.Value);
            __SkillsDisplay.Redraw();

            refreshHTML();
        }