MIM.add_event_listener (window, 'keydown', MIM.keydown);
MIM.add_event_listener (window, 'keypress', MIM.keypress);
MIM.add_event_listener (window, 'mousedown', create_menu);
MIM.add_event_listener (window, 'keydown', MIM.keydown);
MIM.add_event_listener (window, 'keypress', MIM.keypress);
MIM.add_event_listener (window, 'mousedown', create_menu);