[oXygen-user] Programatic DocBook generation

Hello all. I use Oxygen mainly standalone for editing DocBook XML files. I'd like to start processing these to HTML for inclusion in my web site. I love that I can do this from within Oxygen, but I'd like to be able to do it programatically as well. I'm wondering if someone can point me in the right direction; I'd like to know the easiest way to do this. What libraries are required, and the API for how to convert from XML to HTML. As always, a short example would be wonderful! As to why I don't simply save the html Oxygen produces: I'm using a CMS solution, and the DocBook would be stored as XML. I'm writing a plugin that will do the transform when the page is requested. Thanks!