JavaScript仿Windows关机效果

JavaScript仿Windows关机效果(8)             } else if (document.documentElement && document.documentElement.scrollTop){
                    this.yPos = document.documentElement.scrollTop;
            } else if (document.body) {
                    this.yPos = document.body.scrollTop;
            }
      },

      setScroll: function(x, y){
            window.scrollTo(x, y);
      },

      displayLightbox: function(display){
            //将覆盖层显示
            $('overlay').style.display = display;
            //将高亮层显示
            $('lightbox').style.display = display;
            //如果不是隐藏状态,则调用该类中的loadInfo方法
            if(display != 'none') this.loadInfo();
      },

      //该方法发送Ajax请求
      loadInfo: function() {
            //当请求完成后调用本类中processInfo方法
            var myAjax = new Ajax.Request(
          this.content,
          {method: 'get', parameters: "", onComplete: this.processInfo.bindAsEvent Listener (this)}