Dehammer,

I'd give this one up. You attempted to give an explanation for something you don't really understand (just as I post on evolution when I don't really understand it - therefore it comes as no surprise when I get put in my place). There are people here eminently more qualified to explain DrBarr's question.

Even I can see that you are not making much sense here.

Sometimes you gotta eat your humble pie smile

Blacknad.