Function getScrolled

Picviewer CE+/dist.user.js:13632–13643

(container)

        //获取已滚动的距离
        function getScrolled(container){
            if(container){
                return {
                    x:container.scrollLeft,
                    y:container.scrollTop,
                };
            }
            return {
                x:'scrollX' in window ? window.scrollX : ('pageXOffset' in window ? window.pageXOffset : document.documentElement.scrollLeft || getBody(document).scrollLeft),
                y:'scrollY' in window ? window.scrollY : ('pageYOffset' in window ? window.pageYOffset :  document.documentElement.scrollTop || getBody(document).scrollTop),
            };
        }

        //xpath 获取单个元素
        function getElementByXpath(xpath,contextNode,doc){