Add option to use admin theme for Node Relationships pages rendered in modal frames for features such as "Search and reference"

Good idea! :)

Committed a slight variation of your patch. Please note that I have also changed the variable name, the place where it is applied (now in hook_init) and also added code to delete the variable when the module is uninstalled. Oh, and also changed the way the buttons of the settings form are moved to the bottom, now using a method that may work better when other modules alter that form.

http://drupal.org/cvs?commit=398154
http://drupal.org/cvs?commit=398178 (second patch to add missing cond. in hook_init, sorry)

It should be available with the next dev snapshot, and it will be there in the next release. Thanks!

Despite yesterday I was among the supporters of DeeLay's change, I now think there is no need for an extra variable.
The module just needs to be consistent with the theme used by the node-edit forms. Whatever theme (admin or not) a user is using for those forms, they will expect to have the same theme applied in noderelationship's popups.

Therefore, noderelationships could just check against the variable 'node_admin_theme', rather than introduce a new one, which might actually introduce the risk of further inconsistency (users will be deliberately able to use two different themes for node-edit forms and noderealationships popups).

Cheers,

Vincenzo

Just incase you are looking to enable this like I was after applying the 6.x-1.x-dev -- you can enable the admin theme for Search and Reference by going to admin/settings/admin/theme and checking the box that says "Use administration theme for Node Relationships pages"