请教窗口关闭问题？

Question

<SCRIPT LANGUAGE="JavaScript">
function ss()
{
  alert('您浏览本网页即将关闭!');
           window.opener="";
  window.close();
}
  
</SCRIPT>

Answer 1

<script> 
function close1(){     
        closes.Click();                  //ie4 
} 
function close2(){ 
        window.opener=null;       //ie5.5 
        window.close(); 
} 
</script> 
<input type="button" value="关闭" onclick="close1()"> 
<input type="button" value="关闭" onclick="close2()"> 
<object id="closes" classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"> 
<param name="Command" value="Close"> 
</object>

Answer 2

<SCRIPT LANGUAGE="JavaScript">
function ss()
{
  alert('您浏览本网页即将关闭!');
           window.top.opener=null;
           window.top.close();
}
  
</SCRIPT>

Answer 3

TO:wanghr100(灰豆宝宝.net) 
调用的组建需要注册吗？在哪里找啊，他提示“仅在HTML帮助中才有此功能。”