js 등록 events_javascript 기술에 대한 일반적인 방법

;(function(){
//객체 오염 방지를 위한 라이브러리 캡슐화
window['cm']={};
/**
*객체에 대한 이벤트 등록
*/
var addListener=function(element,type,fn){
if(typeof element == 'undefine') return false;
if(element.addEventListener){
element.addEventListener(type,fn, false );
}else if(element.attachEvent){
var _EventRef='_' type 'EventRef';
                                                                                                  _EventRefs=element[_EventRef];
var index;
for(index _EventRefs){
if(_EventRefs[index]['realFn']==fn){
return;
                                                          ~ > 🎜>           element.attachEvent('on' type, NestFn) ]['addListener']=addListener;
/**
*객체에 등록된 이벤트 제거
*/
var RemoveListener=function(element,type,fn){
if(typeof element == 'undefine') return false ;
if(element.removeEventListener){
element.removeEventListener(type,fn,false);
}else if(element.detachEvent) {
var _EventRef='_' 'EventRef' ;
                                                                                                                                                            🎜> var index ;
var NestFn;
for(index in _EventRefs){
if(_EventRefs[index]['realFn ']==fn){
NestFn=_EventRefs[index]['nestFn'];
if(index ==_EventRefs.length-1){
                                      ~else{
                      요소[_EventRef]=_EventRefs.slice(0,index).concat(_EventRefs.slice(index 1,_EventRefs.length-1));
                  }
                    휴식;
                }
           }
            if(nestFn){
                element.detachEvent('on' type,nestFn);
            }
        }else{
            요소['on' 유형]=null;
        }
    };
})();