Will the battery go flat if I stow away my MG GS for a month?

Will my MG GS be okay being stowed away for a month or will the battery go flat and will I lose the radio code?

Which hatchback could I replace my MG ZR with?

My beloved 8-year-old MG ZR with 29,000 on the clock has been written off and I'm seeking a replacement 1.2 or 1.4, 3/5-door hatchback, made in Britain, up to £11,000 new or pre-reg. I've seen a Micra,...