Form Builder Validation Using JavaScript
The WFM Form Builder enables you to perform form- and field-level validation using the JavaScript programming language.
Note: You can use the JavaScript file \system\fbcommon.js to write code
that is common to all forms. This file is empty by default. Edit and save the
file as appropriate and ensure that the file is accessible on the server. The
JavaScript expressions that you add to this file can be applied to all forms.