Description of problem:
In message list view, sometimes a user need to click the second time to open navigation configuration popup. 

Version-Release number of selected component (if applicable):
Zanata version 1.4.2-SNAPSHOT (20111012-1202

How reproducible:
Always

Steps to Reproduce:
1. Visit a project, and click "Translate" on any locale
2. Select a document from document list view.
3. Now you should see message list view. Click at translation on row 1.
4. Click the Navigation configuration button, it should work on first click as expected.
5. Click at translation on row 2.
6. Click the Navigation configuration button

  
Actual results:
Nothing happened.

Expected results:
Navigation configuration should opened.

Additional info:
It works when click at "Navigation configuration button" one more time.