function initHeadline_sticky() {
          console.log('[DFP] initiate Headline stickiness');
          var dfpOnceSticky = false,
              hlStart = 0,
              hlStickyTimer;
          document.addEventListener("scroll", function() {
              var dfpHL = document.getElementById("div-gpt-ad-liputan6-hl");
              var hlPos = dfpHL && dfpHL.getBoundingClientRect();
              if (hlPos && !dfpOnceSticky && hlPos.top <= 10) {
                  hlStart = dfpHL.offsetTop;
                  dfpHL.classList.add("dfp-hl-sticky");
                  dfpOnceSticky = true;
                  dfp_videoHLStickyState = dfpOnceSticky;
                  hlStickyTimer = window.setTimeout(function() {
                      dfpHL.style.marginTop = -(dfpHL.clientHeight) + "px"
                      setTimeout(function() {
                          dfpHL.classList.remove("dfp-hl-sticky");
                          dfpHL.style.marginTop = "0px";
                      }, 700);
                  }, 5000);
              }
              if (dfpOnceSticky && window.scrollY < (hlStart - 70) && hlStickyTimer) {
                  window.clearTimeout(hlStickyTimer);
                  dfpHL.classList.remove("dfp-hl-sticky");
                  dfpHL.style.marginTop = "10px";
              }
          });
      }