I wrote a big complement for you in here before Yura_chan and now it has disapeared. There is not even a draft here for me to reaload 
Anyway.....
I said thank you to Chris for answering your question. 
and
I said I was very pleased that you quized him when you didn't understand.
We want everyone to do that, it proves we really do have a student who is learning from us :)
You answer other people's questions great too.
We are very lucky that you have joined our web2.0calc forum 

