e.g., <field var="pubsub#language" type="list-single"><option label="English"><value>en</value></option></field>
Brett
Since a lot of users might not be familiar with language codes, I think
it would make sense for pubsub#language (as with pubsub#type) to also be
allowable as a "list-single" (<xdv:open/> especially vaildation) so that
some predefined choices could be listed for them...
