Hi! First, thank you all for help. About this answer: I sometimes draw flowchart by hand ( I didn't remember this word in english, hence my problem) just to define what and how I want to do with my program. It's much easier to code then. Good comments are of course essential to understand the code. Regards, Samo Was [OT]: Try Olin's opinion about drawing algorithm paths. (Is he subscribed to [OT]: ?) I found he was very much right on code documenting. (no sarcasm intended) Personally, I find drawing flowcharts a useless business. Properly structured, well commented code with meaningful names is much better. Mike. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu