@Override
 public String getColumnName(int col) {
   switch (col) {
     case 0:
       return "Account";
     case 1:
       return "Currency";
     default:
       return MarketValueTag.get(col - 2).toString();
   }
 }
 @Override
 public Object getValueAt(int rowIn, int col) {
   MktValRow row = m_list.get(rowIn);
   switch (col) {
     case 0:
       return row.m_account;
     case 1:
       return row.m_currency;
     default:
       return format(row.get(MarketValueTag.get(col - 2)), null);
   }
 }