JS—简单加载弹出小网页后5秒消失
show.html代码：
<script language=javascript>
window.open("one.html","_blank","top=0.left=0,width=200,height=200,toolbar=no");
</script>
one.html代码：
<script language=javascript>
window.setTimeout("window.close()",5000);
</script>
<body>
<center><h3>通知</h3></center>
5秒钟以后，这个窗口自动关闭！
</body>