         if (instance == navigationGroup)
         {
             group = navigationGroup;
+			// FIXME (jasonsj): do we need to set ID for CSS selectors to work
+			//group.id = "navigationGroup";
             index = NAVIGATION_GROUP_PROPERTIES_INDEX;
         }
         else if (instance == titleGroup)
         {
             group = titleGroup;
+			// FIXME (jasonsj): do we need to set ID for CSS selectors to work
+			//group.id = "titleGroup";
             index = TITLE_GROUP_PROPERTIES_INDEX;
             
             // use titleContent if provided

    {
        if (titleGroup)
        {
            _titleChanged = true;
            
            if (value)
            {
                titleGroup.mxmlContent = value;
            }
            else
            {
                titleGroup.mxmlContent = titleDisplay ? [titleDisplay] : null;
                invalidateProperties();
            }
            
            contentGroupProperties[TITLE_GROUP_PROPERTIES_INDEX] = 
                BitFlagUtil.update(contentGroupProperties[TITLE_GROUP_PROPERTIES_INDEX] as uint,

 *  @productversion Flex 4.5
 */
[Style(name="backgroundAlpha", type="Number", inherit="no")]

// FIXME (jasonsj): text styles for titleDisplay?
//include "../../styles/metadata/BasicInheritingTextStyles.as"
//include "../../styles/metadata/AdvancedInheritingTextStyles.as"
//include "../../styles/metadata/SelectionFormatTextStyles.as"

/**
 *  The ActionBar class defines a component that includes title, navigation 
