code: boolean localDestination(String name, PdfDestination destination) {
          Object obj[] = (Object[])localDestinations.get(name);
          if (obj == null)
              obj = new Object[3];
          if (obj[2] != null)
              return false;
          obj[2] = destination;
          localDestinations.put(name, obj);
          destination.addPage(writer.getCurrentPage());
          return true;
      }
docs: The local destination to where a local goto with the same
  name will jump to.
  @param name the name of this local destination
  @param destination the <CODE>PdfDestination</CODE> with the jump coordinates
  @return <CODE>true</CODE> if the local destination was added,
  <CODE>false</CODE> if a local destination with the same name
  already existed