<script>

   var scrollFunc = function (e) {
var direct = 0;
e = e || window.event;
if (e.wheelDelta) { //判断浏览器IE,谷歌滑轮事件
if (e.wheelDelta > 0) { //当滑轮向上滚动时
alert("滑轮向上滚动");
}
if (e.wheelDelta < 0) { //当滑轮向下滚动时
alert("滑轮向下滚动");
}
} else if (e.detail) { //Firefox滑轮事件
if (e.detail> 0) { //当滑轮向上滚动时
alert("滑轮向上滚动");
}
if (e.detail< 0) { //当滑轮向下滚动时
alert("滑轮向下滚动");
}
}
ScrollText(direct);
}
//给页面绑定滑轮滚动事件
if (document.addEventListener) {
document.addEventListener('DOMMouseScroll', scrollFunc, false);
}
//滚动滑轮触发scrollFunc方法
window.onmousewheel = document.onmousewheel = scrollFunc;
</script>

  

 
代码搬运http://blog.sina.com.cn/s/blog_78106bb10101dgwp.html
04-13 12:36