scroll cực chất timviec365.vn, vieclam123.vn (ok)

jQuery(window).scroll(function() {
  if (jQuery(this).scrollTop() > 130 && $('#slick_js').hasClass('add_slick') == false) {
    $('#slick_js').append('<link rel="stylesheet" href="/css/slick.css"><link rel="stylesheet" href="/css/slick-theme.css"><script src="/js/slick.js" type="text/javascript"><\/script>');
    $('#slick_js').addClass('add_slick');
  }
});