Pier - Changing CSS Class

All, Lately, I've been attempting to make PRTables have a borders around them. If I create a CSS file for table with class 'hasborden' by adding the following to the top of PRTable>>accept: (aVisitor isKindOf: PRRenderer) ifTrue: [aVisitor renderer table attributes addClass: 'hasborder']. then PRTables are displayed with the CSS class of 'hasborder' and is displayed correctly, and other tables do not have borders (exactly what I want!). Is there a better way to this sort of thing, I have several similar changes, and I want to limit the amount of really bad smalltalk. Thanks, John