How do I validate a certificate (not visible) at the document level?

I am using Acrobat XI Pro running in Windows 8.

I created a PDF document with form fields (type: button) and JavaScript codes (field-level and document-level). Before I certify (not visible) and save the document, I want to add a document-level script that checks if the certificate is valid. If the certificate is valid, I would like to  schedule an interval object to update some of the icons in the fields. Is this possible? If so, how do I get the “certificate (not visible) field” and check that it is valid

Thanks. - john