JS: modify 'getRegionTrans' methods to allow for a region within a region
JS: modify 'getRegionTrans' methods to allow for a region within a region

Signed-off-by: Harry King <409587b9e6671aa0763646191d292852dc49a658@gmail.com>

jaamsim/jaamsim,jaamsim/jaamsim,jaamsim/jaamsim,jaamsim/jaamsim