function IncDuration(self, elapsed)
    dur = dur + elapsed;
    if dur > 0.01 then
        local me = UnitName("player")

        if curWho < maxWho then

            TargetUnit(who[curWho])
            if UnitName("target") then
                if UnitName("target") ~=  me then
                    CastSpellByName("Crown Parcel Service Uniform")
                end
            end
            curWho = curWho + 1

        else

            who_target = who_target + 1
            if who_target > #classes_who then
                who_target = 1
            end
            who_target_two = who_target + 1
            if who_target_two > #classes_who then
                who_target_two = 1
            end
            who={}
            SendWho("z-Tanaris "..classes_who[who_target].." "..classes_who[who_target_two])
            for i=1,GetNumWhoResults() do
                n=GetWhoInfo(i)
                who[i]=n
            end
            curWho=1
            maxWho=#who

        end

        dur = 0
    end
end

who_target = 0
classes_who = {"c-Mage", "c-Warrior", "c-Druid", "c-Warlock", "c-Priest", "c-Paladin", "c-Hunter", "c-Death Knight", "c-Shaman", "c-Rogue"}