For usage samples: http://code.google.com/p/libphonenumber/
jQuery plugin that automatically formats currency (money) and numbers as you type on form inputs. It supports most International numeric formats and currency signs including those used in Europe, North and South America, Afirica, Asia and India lakhs
Country Validator is a library that can be used to validate VAT/TVA codes, social security numbers and TINs (Tax Identification Numbers). All countries from European Union are supported and United States.