:mIsActive(PR_FALSE), mTarget(nsnull), mKeyboardNavigator(nsnull), mMenuBarListener(nsnull)
mIsActive(PR_FALSE), mTarget(nsnull), mKeyboardNavigator(nsnull), mMenuBarListener(nsnull)
:mIsActive(PR_FALSE), mTarget(nsnull), mKeyboardNavigator(nsnull), mMenuBarListener(nsnull){} // cntr