Quest remove

[Jensen- 25]

hey can some1 help me im looking for a code to remove specific quests by id

        var logId = Quest.GetLogIdByQuestId(745);
        if (logId > 0)
        {
            Lua.LuaDoString("SelectQuestLogEntry(" + logId + "); SetAbandonQuest(); AbandonQuest(); ");
        }

and

local questId = 745;
for i=1,GetNumQuestLogEntries() do
	local _, _, _, _, _, _, _, id = GetQuestLogTitle(i);
	if id == questId then
		SelectQuestLogEntry(i);
		SetAbandonQuest();
		AbandonQuest();
	end
end

dont work 

[Jensen- 25]

bumb bumb

[Droidz 2738]

Hello,

Quest id result in GetQuestLogTitle(...) was added in Wotlk.

I haven't found how to do that in TbC