blut.button not working correctly (modal dialog)

blut.button not working correctly (modal dialog)

I am working with a modal dialog, containing two buttons (submit/cancel). When I use the tab key to cycle through all the buttons, for some reason the leftmost button stays in its focus state. When I check the button using Firebug, it still has the ui-state-focus class. The blur event does not seem to happen.

When I change blur.button to focusout.button in the code however, all seem to work correctly.

Cheers,
Steven Roebert