public static CollisionPair add(CollisionPair.CollisionPairName colPairName, GameObject rootA, GameObject rootB)
        {
            CollisionPairManager collisionManInst = CollisionPairManager.getSingletonInstance();

            Debug.Assert(collisionMInstance != null);
            CollisionPair nodeAdded = (CollisionPair)collisionManInst.genericAdd();

            Debug.Assert(nodeAdded != null);
            //set the attributes of the Image node

            nodeAdded.set(colPairName, rootA, rootB);

            return(nodeAdded);
        }