acts_as_tree edit view?

How would I make an acts_as_tree (or acts_as_nested_set) model
editable? Anyone know any nifty rjs in-place tree editor? Or a
treeview js widget that is editable (and is or can be integrated into
Rails)?

Thanks,
- Mark.

I use this drag and drop editor: http://wiki.oriontransfer.co.nz/main/show/SortableTreeTutorial Sadly the wiki for this software seems to get defaced regularly - but right now that page is still showing non-spam content.

Mark,

here is something I knocked up the other day. It allows navigation
and editing all on one screen, using ajax to do the updates and
navigate the select list. My plan is to integrate it into a redBox
popup for product categories. You may find some of it useful. The
select list part could be used in isolation for allocating the
category and the edit/add/delete fields included when editing
categories. this is still in early form, and there is room for
improvement. Perhaps it needs to be better crudded. But it works as
an example of a possible solution. Table has id, parent_id and name
fields. I havn't added sort to it yet, but I probably will. For
clarity and brevity, I have removed the css formatting stuff that
makes it pretty, but you will get the idea.

Controller: