jQuery JavaScript Library v1.3.2

3093 번째 줄을 보시면 아래와 같이 되어있습니다.

jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," +
 "mousedown,mouseup,mousemove,mouseover,mouseout,mouseenter,mouseleave," +
 "change,select,submit,keydown,keypress,keyup,error").split(","), function(i, name){

 // Handle event binding
 jQuery.fn[name] = function(fn){
  return fn ? this.bind(name, fn) : this.trigger(name);
 };
});

빨간 색글자 들은 모두 이벤트를 나타냅니다. 빨간색글 맨뒤부분에 mousewheel 을 아래와 같이 추가해줍니다.

jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," +
 "mousedown,mouseup,mousemove,mouseover,mouseout,mouseenter,mouseleave," +
 "change,select,submit,keydown,keypress,keyup,error,mousewheel").split(","), function(i, name){

 // Handle event binding
 jQuery.fn[name] = function(fn){
  return fn ? this.bind(name, fn) : this.trigger(name);
 };
});

추가하셨다면 저장을 한후..^^
사용법은 아래와 같이

$('#lightbox-image').mousewheel(function(e){
          alert(e.wheelDelta);
});