[ThzinChang]

Hi Aasha.
Your post and Alokas reply more or less coincided so take a look at the links posted. Very interesting. As for where I got this from, it was from countless books I have seen over the years so I couldn't be specific. I need to digest the links myself first but I'm sure others on here will post their views to. Haven't worked out how to add the smily emoticon, so I just take it that I am smiling and wishing you well!