After Succesfull login event

exuse the ownerid in topic I mean Session(groupid)
I am trying to redirect users after sucessfull login event based on the Groupid from the login table.

I use the field 'fldgroup' as the groupid in the login table.

I have tried following sample ; it does not redirect. Need to know when session groupid is stored.
my sample code is
if Session("groupid") = "8" then

Response.Redirect "anotherpage.asp"

else

Response.Redirect "my_club_list.asp"

end if