让DIV实现抖动效果！

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>JavaScript层抖动效果</title>

<style type="text/css">

#body{text-align:center;}

#test{width:200px;position:absolute;margin:10px auto;height:100px;border:2px dotted red;text-align:center}

</style>

</head>

<body>

<div style="margin:10px 200px">

    <div>

        <input type="button" value="~点这里让我抖抖吧~" onclick="nn.start()" /></div>

    <div>

        <input type="button" value="晃晕了，我不抖了！" onclick="nn.stop()" /></div>

    <div id="test">

        <br>

        </div>

</div>

<p>　</p>

<p>　</p>

</body>

</html>

<script type="text/javascript">

 var m=document.getElementById("test");

function SKclass (obj,Rate,speed) {

     var oL=obj.offsetLeft;

     var oT=obj.offsetTop;

     this.stop=null;

     this.oTime=null;

     var om=this;

     this.start=function(){

             if(parseInt(obj.style.left)==oL-2){

                obj.style.top=oT+2+"px";

                setTimeout(function(){obj.style.left=oL+2+"px"},Rate)

             }

             else{

                obj.style.top=oT-2+"px";

                setTimeout(function(){obj.style.left=oL-2+"px"},Rate)

            }

        this.oTime=setTimeout(function(){om.start()},speed);

     }

     this.stop=function(){

       clearTimeout(this.oTime);

     }

}

var nn=new SKclass(m,20,70);

</script>

</body>

</html>
巴特西

让DIV实现抖动效果！

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