public static byte[] guildMemberOnline(int gid, int cid, boolean bOnline) {
            MaplePacketLittleEndianWriter mplew = new MaplePacketLittleEndianWriter();

            mplew.writeShort(SendPacketOpcode.GUILD_OPERATION.getValue());
            mplew.write(67);
            mplew.writeInt(gid);
            mplew.writeInt(cid);
            mplew.write(bOnline ? 1 : 0);


            return mplew.getPacket();
        }