>
>That's not a side note - that's a chapter <g>
>It sounds interesting (but I'm not sure I have a real understanding of what you are intending).
>
>I'm going to be away for a couple of weeks starting tomorrow (and that will mean I'm going to be two more weeks behind schedule!) but I'd certainly be interesting in seeing your code...
>Best,
>Viv


Well, enjoy the trip. I'll see it when you're back and awake

See this for an intro : http://en.wikipedia.org/wiki/Depth-first_search