js 實作谷歌浏覽器中隐藏标簽後setInterval事件暫停

Interval_control= setInterval(function(){newsSlide_ChangeImg(-1,'left',start_time);},3000);//設定自動切換函數

window.addEventListener('focus', function() {

                     Interval_control= setInterval(function(){newsSlide_ChangeImg(-1,'left',start_time);},3000);//設定自動切換函數

                  },false);

window.addEventListener('blur', function() {

                     window.clearInterval(Interval_control);

              },false);