docs: public int compareTo(CmsJspNavElement obj) {
  
          if (obj == this) {
              return 0;
          }
          float pos = obj.getNavPosition();
          // please note: can't just subtract and cast to int here because of float precision loss
          if (m_position == pos) {
              return 0;
          }
          return (m_position < pos) ? -1 : 1;
      }