regExp for checking for floating number

[frontline]

can someone pls point how to build regExp to check vaild
floading number inclouding the right range and checking for the
point.
thanks!!

[Roy Sinclair]

Why not use the built in functions parseFloat and isNaN?

Feed the value into parseFloat and then check the result with isNaN to determine if the user entered a valid number or not.

[beetle]

my fValidate (http://www.peterbailey.net/fValidate/site.php?page=types#decimal) does that. :D