Simon,
Someone posted a bug that sounds like your JS code in the Zotero
forum. It’s related to author substitution on the MLA style. This
reminds me, on this:
<author>
<substitute>
<choose>
<editor/>
<titles/>
</choose>
</substitute>
</author>
Did we agree to remove the “choose” wrapper?
Also, I noticed you have the short form of number “no”? What about
"n", which is far more common?
Bruce