code: public String getHtmlHelpIcon(String id, String pathPrefix) {
  
          String value = m_htmlProps.getProperty("C_HELP_IMG");
          if (value == null) {
              return "";
          } else {
              value = CmsStringUtil.substitute(value, "$replace$", id);
              return CmsStringUtil.substitute(value, "$path$", pathPrefix);
          }
      }
docs: Returns a help image icon tag to display a help text in the setup wizard.<p>
  
  @param id the id of the desired help div
  @param pathPrefix the path prefix to the image
  @return the HTML part for the help icon or an empty String, if the part was not found