RangeValidator and decimal separator

[wakeup]

I'm developing a web application which get number with decimals. When I write 0.08 the rangevalidator understand 80 and it doesn't valid it. It does well if I write 0,08.

The most extrange is In the develpoing computer and in the client computer I have the point as decimal separator in regional settings.

Where can I change the decimal separator por rangevalidator in the cliente computer?

Thanks!