/// <summary>
        ///  Retrieve the checkout object with a specified member_id, item_id, and item_type
        /// </summary>
        /// <param name="member_id">The id of the member that checked out the item</param>
        /// <param name="item_id">The id of the item that was checked out</param>
        /// <param name="item_type">The type of item that was checked out [book|dvd|technology]</param>
        public Checkout Get(int member_id, int item_id, string item_type)
        {
            CheckoutPersistence checkp = new CheckoutPersistence();

            checkp.addCallField("item_id", item_id, System.Data.SqlDbType.Int, 4);
            checkp.addCallField("member_id", member_id, System.Data.SqlDbType.Int, 4);
            checkp.addCallField("item_type", item_type, System.Data.SqlDbType.VarChar, 50);

            return((Checkout)checkp.Get());
        }