<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>close()</title>
<script type="text/javascript">
function openUrl(){
var mywin=window.open("http://www.imooc.com");
var pages=confirm("是否关闭新页面？");
if(pages==true){
mywin.close();
alert("页面已关闭！");
}
else{
alert("页面未关闭！");
}
}
</script>
</head>
<body>
<input name="botton" type="botton" onclick="openUrl()" value="点击我，打开新的网页！"/>
</body>
</html>excuse me.....it should be 'button' but 'botton'.......