How can I check if an HTML type field has not been updated?

I'm building a business rule for a custom table. I need to check if an HTML field is in its default state (never had anyone enter data in it). I tried "is empty" but it looks like HTML fields have some default html in it.

Does anyone know if there's a standard way to see if an HTML field has been updated from its default value?

Thanks!

Rick Forristall

Programmer Analyst

Goodwill of Central and Northern Arizona