[support] Avoid sub-theme

Hi Folks,

I've added JavaScript/AJAX to a node display which is managed by Display Suite. Consequently, I've added:

drupal_add_library('system', 'drupal.ajax'); drupal_add_js(drupal_get_path('module', 'music_display') . '/music_display.js');

to ds-2col-fluid--node-music.tpl.php This works well because the JavaScript is only loaded for this content-type, but it only works because I sub-themed Bartik on this development site. On the production site, I don't know what theme the designers will use, so I want to move these two line to a module.

How do I create the same qualification, meaning make the above two calls only in the case where Drupal, in the guise of Display Suite, is displaying the "Music" node?

Chris.