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[Java教程]JS层抖动特效,类似QQ聊天窗口抖动


<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<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 >
<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>
<img border="0" src="smiley.gif"></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>
<div>http://www.999jiujiu.com/</div>
</body>
</html>