Football's world governing body FIFA has agreed to allow the introduction of goal-line technology (GLT) at a meeting of the sport's executives here on Thursday.The technology will be used at the Club World Cup in Tokyo in December, the Confederation Cup in 2013 and also the World Cup in 2014.The decision by the International Football Association Board (IFAB) -- custodians of the game's laws -- followed a vote at the Zurich headquarters of FIFA, the international association of football federations.Approval was given on Thursday to the five-referee method of officiating matches after a meeting of the International Football Association Board (IFAB).The referee and two linesmen will be aided by two further officials posted behind each team's goalline to keep an eye on action in and around the critical penalty box area should tournament organisers want it, IFAB announced.FIFA has been trialling the "Additional Assitant Referee" system since 2008 and it was in use during the recently-finished Euro 2012 as well as the Champions League.