FormatDate() equivalent in DS

Hi

  Is there a easy way to apply Date Format in Design Studio?

  I understand it is currently predetermine by Web Browser / BI LaunchPad settings (Preferred Viewing Locale).

  What if I need to preset it to particular date format regardless of individual settings or to something less ambiguous

- Displaying month in Mmm - 01 May 2014 rather than 01/05/2014 or 05/01/2014

- WebI equilvalent to FormatDate() functionality in DS?

   I am using lastRefreshedAt() to retrieve the date at the moment but have no luck formatting it

e.g.

TXT_REFRESH_LABEL.setText("Last Refresh : " + DATASOURCE.getInfo().lastRefreshedAt );

Thanks,

Ken