js監聽滾動條事件

(function () {
    if(document.addEventListener){
        document.addEventListener('mousewheel',scrollFunc,false);
    }
    else {
        document.attachEvent("onmousewheel",scrollFunc);
    }
    //window.onmousewheel=document.onmousewheel=scrollFunc;  //IE/Opera/Chrome/Safari 綁定在事件上 

　　//回調函數
    function scrollFunc(e){
        e=e || window.event;
        if(e.wheelDelta || e.detail){
            if($((e.target || e.srcElement)).closest(".l-box-select").length == 0){
　　　　　　　　　 //todo
                //$('.l-box-select').hide();
            }
        }
    }
})();