I recognized that the XHTML renderers for tr:selectOneListbox and tr:selectManyListbox don't support the optgroup-Tag (compared to the equivalent standard components).
So I implemented a conceptional solution. At the moment HTML doesn't support nested optgroup-Tags (within optgroup-Tags). However, I also took this possibility into my considerations and added support for this scenario (there might be a future demand for this). If someone needs this feature right now, you can find the patch at: http://issues.apache.org/jira/browse/TRINIDAD-812 Regards, Gerhard -- http://www.irian.at Your JSF powerhouse - JSF Consulting, Development and Courses in English and German Professional Support for Apache MyFaces
