In fact it is sort of working for many browsers. I think that on the linux platform recents mozilla. I found an interesting link about testing browsers.

BTW: his was only a proof of concept. I am working on a cleaner version. The problem is not perl but JS, DOM and, possibly, CSS. I think that perl is the best language to generate programsm like here JS code. But it is very difficult to find reliable information of what one can do one the real word (versus the specs). Code repository are many but they always propose the same things.

-- stefp