code: public String getExplorerResource() {
  
          // get the current explorer mode
          String mode = getExplorerMode();
          if (mode == null) {
              mode = CmsWorkplace.VIEW_EXPLORER;
          }
          if (CmsWorkplace.VIEW_EXPLORER.equals(mode)) {
              // append the current site to the key when in explorer view mode
              mode += "_" + getSite() + "/";
          }
          // get the resource for the given mode
          String resource = m_explorerResource.get(mode);
          if (resource == null) {
              resource = "/";
          }
          return resource;
      }
docs: Returns the current resource to be displayed in the explorer.<p>
  
  @return the current resource to be displayed in the explorer