怎么在用window.close()关闭IE窗口时不出提示？？

怎么在用window.close()关闭IE窗口时不出提示？？
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1<html>
2<object classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11" id="closes" type="application/x-oleobject">
3<param name="Command" value="Close"/>
4</object>
5<input onclick="closes.Click()" type="button" value="关闭"/>
6</html>