He is already using some closed-source Ajaxical component library provided by Big Blue. See those <hx:> components.
Well, you won't find many users here who are also using it. Documentation of this closed-source library is also not public available, so we can't help you by just reading it (which you could in fact also perfectly do yourself, you should already have it in your hands). Try reposting at their own forum over there at ibm.com if you stucks and you don't get more respons here.