public static void DeleteSkill(HttpRequestBase req, HttpResponseBase res)
        {
            var result = _employeeLogic.DeleteSkill(int.Parse(req["id"]));

            if (result)
            {
                res.Write(JsonConvert.SerializeObject(new RequestResult("Success", "Skill has been deleted.")));
                return;
            }
            else
            {
                res.Write(JsonConvert.SerializeObject(new RequestResult("Error", "Cannot delete skill.")));
                return;
            }
        }