请问哪里错了呢？大家来找茬！
```
<script type="text/javascript">
function oow(){
if(confirm("open new win?")==true){
window.open('http://www.imooc.com','_blank','width=400,height=500,toobar=no');
}
}
</script>
</head>
<body>
<input type="button" value="新窗口打开网站" onclick="oow()" />
```
