Jhon Mccain' choice of Vice-president: wrong choice?

Jhon Mccain, who is the republican candidate for the election 2008, has chosen his running mate Sarah Palin on September 29th, a day after Barack Obama's amazing speech. Sarah Palin is the governor of Alaska. In my opinion, the first reason may be because he was desperate after hearing Obama's speech, the second reason may be because Obama did not choose Hilary Clinton as his vice president, so he thought perhaps if he choose a woman as a vice president that will help him towards victory during the election. Sarah palin does not have enough experience at all to be a vice president. Even when she was asked on Televison what will she do if she becomes vice president, she points out that she does not know what a vice president does, and the only thing she knows how to do is to serve her community. I'am sure that America won't need a vice president who does not have enough experience or does not have any plan of handling her job in case Mccain is elected. On the other hand, the democratic candidate and his vice presdent Joe Biden are getting more and more people's trust.