aligning text

I'm converting some older documents to docbook. 
Some of the paragraphs are centred, others aligned right.

Is there a straight forward way to do this in docbook.

In XHTML I've created a class="right", etc., and scripted a CSS file.

The <entry> element has an align attribute, but this does not work with <para>.

I'm sure this can be accomplished through a customized layer, but my knowledge of XSLT is not up to that challenge just yet.

I'd appreciate any direction.

Paul