大家帮我看一看错在哪里吧，我思维好换乱。。。
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=gbk"/>
<script type="text/javascript">
function openWindow(){
var open=confirm("are u sure to open this url？")
if(open==ture){prompt("are u sure to open the defalut url?","http：//www.imooc.com/") window.open("http：//www.imooc.com/","_blank","width=400,height=500,menubar=no,toolbar=no,scrollbars=no")}
else{alert("bye!")}
}
</script>
</head>
<body>
<input type="button" value="新窗口打开网站" onclick="openWindow()" />
</body>
</html>
