if (hit.collider.name=="Menu"||hit.collider.name=="Category1"||hit.collider.name=="Category2"||hit.collider.name=="Category3")    
      {
      hitGO=Instantiate(tap,new Vector3(hit.collider.transform.position.x,hit.collider.transform.position.y,0), Quaternion.identity) as GameObject;
      if(state==false)
      {
       state=true;
      }
      else
      {
       state=false;
      }
      }
     }
if(state==true)
     {
      iTween.MoveTo(go, new Vector3(startPosition.x+112.0f, startPosition.y,0), 1.0f);
      hitGO.transform.position=go.transform.position;
     }
     else
     {
      iTween.MoveTo(go, startPosition, 1.0f);
      hitGO.transform.position=go.transform.position;
     }