void Start()
        {
#if UNITY_WEBPLAYER
            FacebookPurchasing = this.gameObject.AddComponent <FacebookPurchasing>() as IFacebookPurchase;
            FacebookPurchasing.Init();
#endif
        }
 void Start()
 {
     #if UNITY_WEBPLAYER
     FacebookPurchasing = this.gameObject.AddComponent<FacebookPurchasing>() as IFacebookPurchase;
     FacebookPurchasing.Init();
     #endif
 }
 void Start()
 {
     FacebookPurchasing = this.gameObject.AddComponent(Type.GetType("FacebookPurchasing")) as IFacebookPurchase;
     FacebookPurchasing.Init();
 }