code: public void run(CmsResource source, CmsResource target) throws CmsException, NoCustomReplacementException {
  
          run(source, target, null);
      }
docs: Starts the page copying process.<p>
  
  @param source the source (can be either a container page, or a folder whose default file is a container page)
  @param target the target folder
  
  @throws CmsException if soemthing goes wrong
  @throws NoCustomReplacementException if a custom replacement element was not found