loadImage,
      IMG_LOADING_DELAY = 200,
      IMG_LOADING_MAX = 0,
      clipboard;

  $("#searchForm").on("submit", function(e) {
    $searchButton.attr("disabled", true);
    setTimeout(function() {
      $searchButton.attr("disabled", false);
    }, 3000);
    return true;
  });

  $(document).on("click touchend", function(e) {

                    .prepareNodesHotThreads()
                    .setIgnoreIdleThreads(ignoreIdleThreads)
                    .setInterval(interval)
                    .setThreads(threads)
                    .setTimeout(timeout)
                    .setType(type)
                    .execute()
                    .actionGet(timeout);
            append(buf, "cluster_name", () -> response.getClusterName().value()).append(',');

            final long queryTimeout = fessConfig.getQueryTimeoutAsInteger().longValue();
            if (queryTimeout >= 0) {
                searchRequestBuilder.setTimeout(TimeValue.timeValueMillis(queryTimeout));
            }

            try {
                if (logger.isDebugEnabled()) {
                    logger.debug("Query DSL: {}", searchRequestBuilder);