This is considered one of the must have macro's it includes what you are looking for. Have you thought about using a mod like Jamba or Multiboxer?

/script AcceptGroup();
/script AcceptQuest();
/script AcceptTrade();
/script RetrieveCorpse();
/script RepopMe();
/script ConfirmAcceptQuest();
/script StaticPopup_Hide("PARTY_INVITE");
/script StaticPopup_Hide("QUEST_ACCEPT");