void Awake()
 {
     maincamera = GameObject.FindWithTag("MainCamera");
     cardselection = maincamera.GetComponent<cardSelection>();
     img1= GameObject.Find ("img1").GetComponent<SpriteRenderer>().sprite;
     img2 = GameObject.Find ("img2").GetComponent<SpriteRenderer>().sprite;
     changimg = maincamera.GetComponent<ChangeImg>();
 }
 void Awake()
 {
     maincamera = GameObject.FindWithTag("MainCamera");
     cardselection = maincamera.GetComponent<cardSelection>();
 }