under:

switch(settings.persist) {

I just added:

case "active":
        var current = this.find(".cur_cat");
        if ( current.length ) {
                current.addClass("selected").parents("ul,
li").add( current.next() ).show();
        }
break;

That seems to do the trick. Unfortunately I don't quite know how to

pass the category name "cur_cat" into the options. But for me

hardcoded is OK right now.