mirror bit of mirror coming off... how to fix?

[big_treacle]

I was hooning along this morning and noticed the actual mirror glass of my drivers side wing mirror was wobbling slightly. Thought nothing of it as I assumed it was just the wind shaking it. Anyway, about 5 minutes later I pull up to a roundabout, glanced at my mirror and the glass was hanging off by a piece of wire!!! Luckily they seem to backed by some sort of sticky stuff so I pressed it back into place. Does anyone know what to use to fix it back permanently? I wouldn't want to be driving behind me & get a mirror fly into my windscreen!!!
Cheers
Stew

[big_treacle]

Thanks guys, this forum is amazing some times!
big al, i'm emailing you now....

[big_treacle]

Big Al,
Got the stuff this morning and it certainly does the job!
Cheers, I owe you one.
Stew