public void Start()
{
cardItem = GameObject.Find("Card");
spriteRenderer = cardItem.GetComponent <SpriteRenderer>();
cm = cardItem.GetComponent <CardModel>();
//string filePath = Global.ImageDir + @"\cardback.jpg";
spriteRenderer.sprite = cm.LoadNewSprite(-1);
spriteRenderer.sortingLayerName = "Default";
cardItem.transform.position = start;
cardItem.transform.localScale = new Vector3(Scale, Scale);
}