Not able to Get clicked sprite name in this code

Hi all,

I have following code. I am trying to get clicked sprite name at run time. I have added rigidbody2d and boxcolider2d but I am not getting name… Attached image

public class test : MonoBehaviour {

	public Sprite[] card;
	public List <Sprite> items;
	public Transform start;
	public float howManyAdded; // How many cards I added so far
	float gapFromOneItemToTheNextOne; //the gap I need between each card

	void Awake()
		// load all frames in cards array
		card = Resources.LoadAll<Sprite>("CardDeck_");

	void Start()
		howManyAdded = 0.0f;
		gapFromOneItemToTheNextOne = 0.2f;

		GameObject cards = new GameObject();
		GameObject cardPart1 = new GameObject();

		cardPart1.transform.position = start.position;
		cardPart1.transform.position += new Vector3 (( howManyAdded*gapFromOneItemToTheNextOne), 0, 0);
		cardPart1.transform.Rotate( 0f, 0f, -6f );


		cardPart1.GetComponent<SpriteRenderer>().sprite = card[8];

		GameObject cardPart2 = new GameObject();

		//cardPart2.transform.SetParent ();

		cardPart2.transform.position = start.position;
		cardPart2.transform.position += new Vector3 (( howManyAdded*gapFromOneItemToTheNextOne), 0, 0);
		cardPart2.transform.Rotate( 0f, 0f, -6f );

		//Rigidbody2D gameObjectsRigidBody  = cardPart2.AddComponent<Rigidbody2D>();
		//gameObjectsRigidBody.isKinematic = true;


		cardPart2.GetComponent<SpriteRenderer>().sprite = card[15];


	void OnMouseDown(){
		Debug.Log("Sprite Clicked");

the code seems fine; so i think problem can be from inspector or hirachy ;
can u show me some screen shot from those ?