lazy load js by jquery

    jQuery(document).ready(function () {
      jQuery.cachedScript = function (url, options) {
        options = $.extend(options || {}, {
          dataType: "script",
          cache: true,
          url: url,
        });
        return jQuery.ajax(options);
      };
      console.log($(location).attr("href"));

      $(document).one("scroll", function (event) {
        console.log('bitrix loading...');
        window.setTimeout(function () {
            $.cachedScript(
            "https://cdn.bitrix24.ua/crm/site_button/loader_1_ojfniz.js"
            ).done(function (script, textStatus) {
            console.log("bitrix is " + textStatus);
            });
          }, 7000);

      });

    });