My 2008 unibory Macbook got stolen. Now, left with me is the magsafe adapter that came with my macbook. To replace the stolen computer, I just ordered the new 11" MBA. Will I be able to use the magsafe adapter of my previous macbook on my macbook air? It would be convenient for me to keep my new magsafe adapter at home and use the old adapter with my new 11" MBA at work.