public ActionResult Details(int?id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            Racun            racun = db.Racuni.Find(id);
            StavkaRepository sr    = new StavkaRepository();

            racun.stavke = sr.GetStavka(id);



            if (racun == null)
            {
                return(HttpNotFound());
            }
            return(View(racun));
        }