Formatar aaaa-mm-dd H:i:s para dd/mm/aaaa H:i:s - Javascript

gistfile1.js

datahora = '2013-01-02 15:12:20';
datahora = datahora.split(' ');
data = datahora[0]
hora = datahora[1]
data = data.split('-').reverse().join('/');
datahora = data+' '+hora;