Jass help

function Trig_kill_cult4_Copy_Conditions takes nothing returns boolean
if ( not ( IsUnitType(GetTriggerUnit(), UNIT_TYPE_UNDEAD) == false ) ) then
return false
endif
return true
endfunction

function Trig_kill_cult4_Copy_Actions takes nothing returns nothing
call CreateItemLoc( 'rat6', GetRectCenter(GetPlayableMapRect()) )
call QuestMessageBJ( GetPlayersAll(), bj_QUESTMESSAGE_UPDATED, "TRIGSTR_029" )
call QuestSetCompletedBJ( GetLastCreatedQuestBJ(), true )
endfunction

//===========================================================================
function InitTrig_kill_cult4_Copy takes nothing returns nothing
set gg_trg_kill_cult4_Copy = CreateTrigger( )
call DisableTrigger( gg_trg_kill_cult4_Copy )
call TriggerRegisterEnterRectSimple( gg_trg_kill_cult4_Copy, gg_rct_preist_area )
call TriggerAddCondition( gg_trg_kill_cult4_Copy, Condition( function Trig_kill_cult4_Copy_Conditions ) )
call TriggerAddAction( gg_trg_kill_cult4_Copy, function Trig_kill_cult4_Copy_Actions )
endfunction


i want it to complete a quest called kill the cult as opposed to last created quet what do i edit?