signature validation

It can create plain/text and HTML signature for Mail Express Series software.

Simple extensible Ajax-Style Email Form Validation using JavaScript and PHP.

A simple, generic form validation script for use in your PHP form processors

Allows you to verify the digital signature of the active document.

Digital signature solution for enterprise, sign any computer file by persons

Mailer Signature is a plugin for Winamp which adds name of currently playing ...

Verifies that the request for a page (containing the script) was made from page

Checks that postcodes are in correct format. Is written for UK format

In forms when asking for date fields it is a good idea to validate

It is validates the entered value to see if it conforms to the ICD-10 format