Dunfermline overcame the dismissal of Joe Cardle to move three points clear of Ayr at the top of Ladbrokes League One, winning 2-1 at Somerset Park.Michael Moffat gave the Pars a 34th-minute lead when he rounded off good work by Faissal El Bakhtaoui and Michael Paton to beat Ayr goalkeeper Greg Fleming.The home side were level a little more than two minutes later when Gerry McLauchlan headed in Brian Gilmour's cross.Cardle was dismissed in the 52nd minute after picking up two bookings in quick succession - the first for diving in the box, the second for a clash with Ayr's Peter Murphy.However, David Hopkirk won it for Dunfermline in the 69th minute with a low shot.