Want to change the text of a crosstab header in onRender

jlspea01

When my crosstab renders, I would like to be able to change the name of the header dynamically. It works something like this contrived example...:

| country1 | country2 | country3
language1|
language2|
language3|

and the data is the number of people that speak that language in the country.

With a report parameter, I can flip the axis:

| language1 | language2 | language 3
country1 |
country2 |
country3 |

What I want to be able to do is to programatically look at the report parameter and look in my resources file using reportContext.getMessage() to do a lookup of the country or language name but I don't know the name of the object I should be referencing to get the current group value or to actually write out the translated value once the lookup is complete.

Any hints will be helpful...

Thank you