Thread:Extension talk:FormatNum/decimal comma system into en. decimal point/reply

Example and testing can be done here http://www.wecowi.de/index.php?title=WeCoWi:Spielwiese&oldid=133108

The function mainly only uses PHPs format_num described here http://www.php.net/manual/en/function.number-format.php

When you can describe what conversion you expect I maybe could add it