{
{     This procedure will change all or selected parts of a specified
{  job class. It will also change multiple job classes.
{
{  JMP$CHANGE_CLASS_ATTR( CLASS_SET, ATTR_SET, CHANGED_CAT, STATUS)
{
{  CLASS_SET: (input) The list of classes to affect change.
{
{  ATTR_SET: (input) The set of attributes to change.
{
{  CHANGED_CAT: (output) The template of the new class attribute values.
{
{  STATUS: (output) The request status.
{
