Event.addBehavior.reassignAfterAjax = true;
Event.addBehavior({
  'a.video_player': video_player,
  '.flash': FlashMessage,
  '#payment_method_fields': question_show_hide({on: 'direct_billing', show: ['direct_billing_header', 'direct_billing_fields'], hide: ['credit_card_header', 'credit_card_fields']}),
  '.game_launch': game_launch,
  'a.add_form': AddForm,
  '#play_video, .closer_look, .help': ModalPop,
  '#signup_submit': signup_submit
});