I'm interested in changing predefined themes on the web page (ex. ruby, wine, classic...)for the richfaces components.I have tried to do that through the one bean named theme who has a field look.That field is value binded in the web.xml

<context-param>

<param-name>org.ajax4jsf.SKIN</param-name>

<param-value>#{theme.look}</param-value>

</context-param>

and that works if I change it.But the thing that I' m interested in how to do that through the code without touching and modifying dinamicaly
the web.xml file, something like the language selector and the message bundle that is supported by the seam component.
Thanks in advance!!