Fix error on page unload if the dialog has never been shown.  Refs #2815.
Fix error on page unload if the dialog has never been shown.  Refs #2815.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@9120 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful