public WOActionResults previousPage() {
WOActionResults previousPage = null;
if(displayGroup() != null){
WODisplayGroup displayGroup = displayGroup();
displayGroup.displayPreviousBatch();
} else if(parentActionName() != null){
Integer previousBatchIndex = Integer.valueOf((currentBatchIndex() - 1));
if(previousBatchIndex.intValue() < 1){
previousBatchIndex = Integer.valueOf(1);
}