Logged out due to inactivity vs unauthorized...

hi


i've put in little checks in some of my admin page_load pages, 



If (Session("userID") = 0) Then             Response.Redirect("~/message.aspx?type=LOGOUT")         End If
If (Session("userID") = 0) Then Response.Redirect("~/message.aspx?type=LOGOUT") End If
i check to see if the person is no longer logged in and redirect to a little "Go to the complete details ...