code: protected CharSequence buildInsertText(TextDocument page,
  			HttpServletRequest httpRequest, HttpServletResponse httpResponse,
  			WaybackRequest wbRequest, CaptureSearchResults results,
  			CaptureSearchResult result, Resource resource) throws IOException, ServletException {
  		if (jspInserts == null || jspInserts.isEmpty())
  			return "";
  		StringBuilder toInsert = new StringBuilder(300);
  		for (String jspName : jspInserts) {
  			toInsert.append(page.includeJspString(jspName, httpRequest, httpResponse, wbRequest, results, result, resource));
  		}
  		return toInsert;
  	}
docs: return text to insert.
  <p>{@code jspInserts} are executed in sequence, concatenating
  their output.</p>
  @param page for calling {@code includeJspString} method
  @param httpRequest incoming request
  @param httpResponse outgoing response
  @param wbRequest wayback request info
  @param results captures
  @param result capture being replayed
  @param resource resource being replayed
  @return concatenated output of {@code jspInserts}
  (empty if no {@code jspInserts} is configured.)
  @throws IOException error from {@link TextDocument#includeJspString}
  @throws ServletException error from {@link TextDocument#includeJspString}