function qqshow() {
            if (document.body.offsetWidth > 900) {
                document.getElementById("qq_right").style.top = (document.documentElement.scrollTop + 194) + "px";
                //document.getElementById("qq_left").style.top=(document.documentElement.scrollTop+166)+"px";
            }
            else {
                document.getElementById("qq_right").style.display = "none";
                //document.getElementById("qq_left").style.display="none";
            }
            // document.getElementById("qq_right").style.left=(document.documentElement.scrollLeft+document.documentElement.clientWidth-  document.getElementById("qq_right").offsetWidth-6)+"px";
        }
        function showqq() {
            setTimeout("qqshow();", 10);
        }
        window.onscroll = showqq;
        window.onresize = qqshow;
        window.onload = qqshow;

        function yc() {
            //隐藏
            document.getElementById("big").style.display = "none";
            document.getElementById("small").style.display = "block";
        };

        function xs() {
            // 显示
            document.getElementById("big").style.display = "block";
            document.getElementById("small").style.display = "none";
        }