<% Response.Expires = 7200 Response.ContentType ="image/gif" Dim regEx Set regEx = New RegExp regEx.IgnoreCase = True regEx.Global = True QUERYSTRING = Request.ServerVariables("QUERY_STRING") Pos = InStr(QUERYSTRING, ":80/") HTTP_X_REWRITE_URL = Mid(QUERYSTRING, Pos + 3) regEx.Pattern = "/snaps/([0-9]*)l.gif" If regEx.Test(HTTP_X_REWRITE_URL) Then%> <% Else regEx.Pattern = "/snaps/([0-9]*)s.gif" If regEx.Test(HTTP_X_REWRITE_URL) Then%> <% Else End If End If Set regEx = Nothing %>