JavaScript decimal value validation

I want to validate a decimal value in an ASP.NET we开发者_Python百科b page using JavaScript, so that the user can enter numbers with only two decimals. The validation should also consider the current UI culture (e.g. ',' instead of '.'). I use Microsoft's Ajax Framework, is there any function included in the library for such a thing?

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If values are separated by spacing you can simply use ^\s*(\d+(?:\.\d+)?)\s+(\d+(?:\.\d+)?)\s*$ regexp (and than use $1 and $2 matches as actual values)

And, more important thing is that all client-side data is insecure by default (because can be forged) so you anyway have to validate it on server.