code: public boolean isDisabledModelPageEntry(CmsUUID id) {
  
          boolean result = false;
          if (m_modelPageTreeItems.containsKey(id)) {
              result = m_modelPageTreeItems.get(id).isDisabled();
          } else if (m_parentModelPageTreeItems.containsKey(id)) {
              result = m_parentModelPageTreeItems.get(id).isDisabled();
          }
          return result;
      }
docs: Returns the disabled state of the given model page entry.<p>
  
  @param id the entry id
  
  @return the disabled state