code: public void setDisabled(boolean disabled) {
  
          m_disabled = disabled;
          if (m_disabled) {
              getListItemWidget().addStyleName(I_CmsSitemapLayoutBundle.INSTANCE.sitemapItemCss().hiddenNavEntry());
          } else {
              getListItemWidget().removeStyleName(I_CmsSitemapLayoutBundle.INSTANCE.sitemapItemCss().hiddenNavEntry());
          }
      }
docs: Sets the model page entry disabled.<p>
  
  @param disabled <code>true</Code> to disable