text: function loadImg(){
    var imgDefer = document.querySelectorAll('[data-src]')
      for (var i=0; i<imgDefer.length; i++) {
        if(imgDefer[i].getAttribute('data-src')){imgDefer[i].setAttribute('src',imgDefer[i].getAttribute('data-src'));
        }
      }
  }
  addLoadEvent(loadImg);
  