public ViewResult Index(int? page)
        {
            const int pageSize = 10;

          
            var list = new PagerHelper<Brand>(repository.GetList(), page ?? 0, pageSize);

            return View(list);

        }

        public ViewResult AdminSearch(string q, int? page)
        {
            const int pageSize = 10;
            q = HttpUtility.HtmlEncode(q);
            var list = repository.FindAllByText(q);

            var results = new PagerHelper<Brand>(list, page ?? 0, pageSize);
            ViewBag.Keyword = q;
            return View(results);
        }