Ben, That reference to Jacob Haller's posting was exactly what I needed. I figured something of that sort was in the archives and went looking, but got a LOT of hits. -- Please send new requests for Listserv owner support to [log in to unmask] -- Requests for support sent to [log in to unmask] will be delayed. -- -- Syracuse University Listserv List Manager -- Listserv webpage: http://listserv.syr.edu