window.open怎么打开一个只有菜单栏右侧小地球的窗口?

<html>
<head>
<title>Open Window</title>
<script language="JavaScript">
  function OpenWindow()
  {
    thisWin = window.open("", null, "width=300,height=400")
    thisWin.document.write("<head><title>newWindow</title></head>")
    thisWin.document.write("<body><center>This is a new window!</center></body>")
  }
</script>
</head><body>
<center>
<input type="button" value="Creat New Window" onClick="OpenWindow()">
</center>
</body>
</html>