validate funtions for numbers

[tlan]

Any one know where I can find free existing JavaScript functions for validate data such as float, double, nagtive number, etc.?

Thanks a lot.

tl.

[Khalid Ali]

Number()
and parseFloat() should help you

take look a this link

http://devedge.netscape.com/library/manuals/2000/javascript/1.5/reference/number.html#1193137