Palin takes battle to Democrats :

John McCain's running mate, Sarah Palin, has made a stinging attack on Democratic presidential runner Barack Obama at the US Republican convention.
Defending her small town roots, she attacked Mr Obama as having talked of change but done nothing of substance.
Mrs Palin praised the "determination, resolve and sheer guts" of Mr McCain and said she was honoured to help him.
Mr McCain made a surprise appearance on stage, with her family, saying: "Don't you think we made the right choice?"
The Arizona senator is being nominated as the party's presidential candidate in a roll call vote of state delegates.
Mrs Palin gave her much-anticipated address to a packed and enthusiastic convention floor in St Paul.