public ActionResult RemoveComment(int commentId, int groupId)
        {
            if (Session["UserName"] == null)
            {
                return(RedirectToAction("Error"));
            }

            KoombuBll kBll = new KoombuBll();

            kBll.RemoveComment(commentId);
            if (groupId != 0)
            {
                return(RedirectToAction("GroupWall", "Group", new { groupId = groupId }));
            }

            return(RedirectToAction("Home", "Home"));
        }