Thanks gents ...but I'm just a guy who has a couple "hmm, I wonder if ....." ideas - & without truly knowing how to arrive at the end destination! (or sometimes how to even start off on the journey!). It's the wealth of knowledge on this forum (& willingness to contribute to my threads) by folks that actually have a clue that makes it all happen.

Re the Wiki - I'd be too mortified/embarrassed that my (sometimes cringeworthy) stuff would actually make it into such a place (like I say, in this instance the program I've knocked up is not that elegant but seems to work...I think!), but to do it justice I'd have to write it up a lot better, do a lot more testing etc ....there's not enough hours in the day blah blah.... but I'm really chuffed though that you thought it was a potential contender though :-)