I had a referee match yesterday and had parents running the line. Near the end of the match a through ball was played to the attacker and a goal was scored. From the position i was in i didnt think the attacker was offside so i carried on with play, however the linesman put his flag up to say he was offside. In this situation do you go on your opinion? (which was he was onside and give the goal) or do you have to go with the linesman?