求一统计在线人数ASP代码

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<%
t=(cint(day(date()))*24+cint(hour(time())))*60+cint(minute(time()))
k=0
i=1
y=0
Do While application("zxip"&i)<>""
if application("zxip"&i)=Request.ServerVariables("REMOTE_ADDR") then
application("zxsj"&i)=t
y=1
end if
if t-application("zxsj"&i)>9 or t<application("zxsj"&i) then
k=k+1
else
if k>0 then
application.lock
application("zxip"&i-k)=application("zxip"&i)
application("zxsj"&i-k)=application("zxsj"&i)
application.unlock
end if
end if
if k>0 then
application.lock
application("zxip"&i)=""
application.unlock
end if
i=i+1
loop
if y=0 then
application("zxip"&i)=Request.ServerVariables("REMOTE_ADDR")
application("z