bind()

이벤트 추가
.bind( eventType, [ eventData ], handler(eventObject))    Ver 1.0
.bind( eventType, [ eventData ], false )                          Ver 1.4.3
.bind( events )                                                             Ver 1.4

Ex)
$('input').bind('keydown keyup', function(event) {

    ......
});


참고: http://api.jquery.com/bind/