i read the article from dan allen how two speed up richfaces applications.

http://www.jsfcentral.com/articles/speed_up_your_jsf_app_2-3.html

using firebug i saw, that there are still always two css classes.

e.g

extdt-cell rich-extdt-cell

extdt-firstrow rich-extdt-firstrow

is there a way to disable this?