Thanks. I know this could work, but it would require me to add the html parameter to all my form elements in ad_form, strictly for presentation purposes. It's not clean.
What I would like is something like what the FORMGROUP tag does, where @formgroup.widget will print an <OPTION> or <INPUT TYPE="radio"> with an auto-generated ID of the following format: @elements.form_id@:elements:@elements.id@:mailto:\@formgroup.option@
Why couldn't the standard FORMWIDGET tag do something similar for other form inputs?