鼠标滚动事件

<p><label for="wheelDelta">  滚动值:</label>(IE/Opera)<input type="text" id="wheelDelta" /></p>

<p><label for="detail"> 滚动值:(Firefox)</label><input type="text" id="detail" /></p>

<script type="text/javascript">

var oTxt=document.getElementById("txt");

/***********************

* 函数：判断滚轮滚动方向

* 作者：walkingp

* 参数：event

* 返回：滚轮方向 1：向上 -1：向下

*************************/

var scrollFunc=function(e){

    var direct=0;

    e=e || window.event;

 

    var t1=document.getElementById("wheelDelta");

    var t2=document.getElementById("detail");

    if(e.wheelDelta){//IE/Opera/Chrome

        t1.value=e.wheelDelta;

    }else if(e.detail){//Firefox

        t2.value=e.detail;

    }

    ScrollText(direct);

}

/*注册事件*/

if(document.addEventListener){

    document.addEventListener('DOMMouseScroll',scrollFunc,false);

}//W3C

window.onmousewheel=document.onmousewheel=scrollFunc;//IE/Opera/Chrome/Safari

</script>