How to sort?

[Stephan Bardubitzki]

Still learning CouchDB, I have the following view function:
||"|getAllByCategory|":|{
    "|map|":|"function(doc) { if(doc.categories) { 
doc.categories.forEach(function(category) { emit(category, doc) });}}"|
}|||

That gives me all docs for a certain category. I would like to have the 
emitted docs sorted by doc.name, how can I achieve that?

Thanks,
Stephan