//event--事件对象

//ele当前标签

function hover(event, ele) {
            var t, l, a, b;
            a = ele;
            t = a.offsetTop;
            l = a.offsetLeft;
            while (a.tagName != "BODY") {
                a = a.offsetParent;
                t = t + a.offsetTop;
                l = l + a.offsetLeft;
            }
            var x = (parseInt(l) - 200) + "px";
            var y = (parseInt(t) - 200) + "px";//当前标签的位置
            $(ele).prev().prev().show();
            $(ele).prev().prev().css("top", y);
            $(ele).prev().prev().css("left", x);
            $(ele).prev().prev().css("width", "210px");
        }

HTML 获取当前标签在页面的位置，并且把其他的浮动窗口显示过来