public static void DeletePoi(MapPoi poi)
		{
			using (var sc = new SqlConnection(ConnectionStringHelper.ConnectionString))
			{
				var cmd = new SqlCommand("sp_map_Poi_Delete", sc)
					          {
						          CommandType = CommandType.StoredProcedure
					          };

				cmd.Parameters.AddWithValue("@PoiId", poi.Id);

				sc.Open();
				cmd.ExecuteNonQuery();
			}
		}
		public static void UpdatePoi(MapPoi poi)
		{
			using (var sc = new SqlConnection(ConnectionStringHelper.ConnectionString))
			{
				var cmd = new SqlCommand("sp_map_Poi_Update", sc)
					          {
						          CommandType = CommandType.StoredProcedure
					          };

				cmd.Parameters.AddWithValue("@PoiId", poi.Id);
				cmd.Parameters.AddWithValue("@Name", poi.Name);
				cmd.Parameters.AddWithValue("@Title", poi.Title);
				cmd.Parameters.AddWithValue("@PortalId", poi.PortalId);
				cmd.Parameters.AddWithValue("@Email", poi.Email);
				cmd.Parameters.AddWithValue("@ImageUrl", poi.ImageUrl);
				cmd.Parameters.AddWithValue("@Phone", poi.Phone);
				cmd.Parameters.AddWithValue("@Type", poi.Type);

				sc.Open();
				cmd.ExecuteNonQuery();
			}
		}