用response.write和response.end带动一下，才能传session值，很奇怪！

1.asp

session("username")=request("username")
<BODY onUnload="window.location.href='zhuxiao.asp'">
<a href="zhuxiao.asp">注销登陆</a>




zhuxiao.asp

<%
response.write("username")
'reponse.end
if session("username")="" then
response.Write("<script language=javascript>alert('登录时间过长！');window.location.href='denglu2.asp'</script>")
else
session("username")=""
response.Write("<script language=javascript>alert('注销成功！');window.location.href='denglu2.asp'</script>")
response.End
end if%>

只有用response.write和response.end带动一下，才能传session值，否则session值就为空，为什么啊？