关于在ASP中字符串排序的问题

aaa="9,13,8,21,25,"

s = split(aaa,",")

for i=0 to ubound(s)-1

min=i

For j=i+1 To ubound(s)

If CInt(s(min))>CInt(s(j)) Then

min=j

End if

tem=s(i)

s(i)=s(min)

s(min)=tem

Next

pid=pid+s(min)+","

Next

我想把字符串aaa进行排序（小到大），可是有问题，不知哪儿不对，请高手帮忙看一下，如果可以帮我改一下代码。谢谢！

aaa="9,13,8,21,25"

s = split(aaa,",")

for i=0 to ubound(s)

min=i

For j=i+1 To ubound(s)

If CInt(s(i))>CInt(s(j)) Then

min=j

End if

tem=s(i)

s(i)=s(min)

s(min)=tem

Next

pid=pid+s(i)+","

Next

response.Write(pid)