code: public Table newCell()
      {
          newBlock("td");
          if (_defaultCell!=null)
          {
              cell.setAttributesFrom(_defaultCell);
              if (_defaultCell.size()>0)
                  cell.add(_defaultCell.contents());
          }
          return this;
      }
docs: /* Create a new Cell in the current row.
  Adds to the table after this call and before next call to newRow,
  newCell or newHeader are added to the cell.