JavaScript控制鼠标滑轮事件

<script language="JavaScript">

<!--

//document.body.onmousewheel = function(){alert('你在滚，哈哈');}

function img_zoom(e, o){ //图片鼠标滚轮缩放

var zoom = parseInt(o.style.zoom, 10) || 100;

zoom += event.wheelDelta / 24;

if (zoom >0) o.style.zoom = zoom + '%';

return false;

}

//-->

</script>

<img onmousewheel="return img_zoom(event,this)" src="bannner.jpg" width="500" height="500">