I'm using rel="lightmodal" to display a PrvateMsg "Write a new message" window. The javascripty stuff inside the modal window (like the FCKEditor, collapsible fieldsets, etc) isn't showing, and I gather that I need to call Drupal.attachBehaviors() to get that stuff back.

I am useless in js -- how exactly do I call that in my modal window? Users will send messages both ways (through the modal window and also through the actual full page at /messages/new), so I'm not sure how/where to add that code so that it will work with the modal, but not break anything in the full window.

Thanks!
Eileen