In JBoss-3.2.3 is it possible to change the location of the "work" directory?

The work directory is currently ${JBOSS_ROOT}/server/'serverinstance'/work/'serverinstance'/localhost.

I am interested in knowing if I can remove the second "serverinstance", and simply have the work directory be ${JBOSS_ROOT}/server/'serverinstance'/work/localhost.

The reason I am interested in doing this is so I can tar up pre-compiled JSPs and deploy them under the work directory independent of the instance name. ( since dev,test, prd all on different boxes will have the same tar deployed but have different 'severinstance' names, etc.)

Thanks!