CB » Facebook Connect CB Plugin

Two FBC buttons on same page generate JS errors and don't work:

That happens e.g. on CB login screen with CB login module displayed at same time.

As this happens when login does not succeed with FBC, it's a problem.

The Javascript error is as follows, and may be due to e.g. identical IDs for the two buttons ? :

Error: FB.HiddenContainer.get() is null
Source File: http://static.ak.connect.facebook.com/connect.php/en_US/js/Api/CanvasUtil/Connect/XFBML
Line: 46