Sorry ady1, missed your point completely
No probs, there might not be a point and I'm getting too old to make an issue out of it
Only someone who knew what I was babbling on about would bother replying
( and more importantly, saw this thread)
It's a mini appeal before we lose their knowledge
Only certain non related articles may have gone in to the level of detail you need because back in "them" days it was taken as basic standard knowledge
Nowadays of course, we know diddly
Edited By Ady1 on 24/10/2013 00:51:10