public ActionResult Add(SupportItemModel model)
        {
            if (!_permissionService.Authorize(StandardPermissionProvider.AccessAdminPanel))
                return Content("Access denied");
            var support = new SupportItem
            {
                LanguageId = _workContext.WorkingLanguage.Id,
                Id = model.Id,
                YahooId = model.YahooId,
                SkypeId = model.SkypeId,
                Name = model.Name,
                Phone = model.Phone,
                HotLine = model.HotLine,
                DisplayOrder = model.DisplayOrder,
                Image = model.Image

            };
            _supportService.Insert(support);
            return new NullJsonResult();
        }
        public ActionResult Update(SupportItemModel model)
        {
            if (!_permissionService.Authorize(StandardPermissionProvider.AccessAdminPanel))
                return Content("Access denied");

            var support = _supportService.GetById(model.Id);
            support.Id = model.Id;
            support.YahooId = model.YahooId;
            support.SkypeId = model.SkypeId;
            support.Name = model.Name;
            support.Phone = model.Phone;
            support.HotLine = model.HotLine;
            support.DisplayOrder = model.DisplayOrder;
            support.Image = model.Image;
            _supportService.Update(support);
            return new NullJsonResult();
        }