<!DOCTYPE html>
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=gbk"/>
<script type="text/javascript">
function openWindow()
{var newpage=confirm("打开新窗口？");
if(newpage=true)
{
var td=prompt("请确认网址","http：//www.imooc.com/");
if(td!=null)
{
window.open("http：//www.imooc.com/","_blank","width=400,height=500,menubar=no,toolbar=no");
}
}
}
</script>
</head>
<body>
<input type="button" value="新窗口打开网站" onclick="openWindow()" />
</body>
</html>
