//**************************************
//
// Name: Credit Card Validator
// Description:These functions thoroughl
// y attempt to invalidate American Express
// , Discover, MasterCard and Visa with len
// gth, character validation, prefix matchi
// ng, check digit, and expiration date tes
// ts. The html test document by no means w
// ill attempt to forward your credit card
// numbers. The action of the form is set t
// o an invalid URL
// By: vsim
//
//This code is copyrighted and has// limited warranties.Please see http://
// www.Planet-Source-Code.com/vb/scripts/Sh
// owCode.asp?txtCodeId=2493&lngWId=2//for details.//**************************************
//
Credit Card Validation