获取html元素所在页面的坐标

function findPosition(oElement) {

            var x2 = 0;

            var y2 = 0;

            var width = oElement.offsetWidth;

            var height = oElement.offsetHeight;

            if (typeof (oElement.offsetParent) != 'undefined') {

                for (var posX = 0, posY = 0; oElement; oElement = oElement.offsetParent) {

                    posX += oElement.offsetLeft;

                    posY += oElement.offsetTop;

                }

                x2 = posX + width;

                y2 = posY + height;

                //return [ posX, posY ,x2, y2];

                return { x: posX, y: posY, xx: x2, yy: y2 };

            } else {

                x2 = oElement.x + width;

                y2 = oElement.y + height;

                return { x: oElement.x, y: oElement.y, xx: x2, yy: y2 };

            }

        }

　　此方法获取到的是json格式的数据，包括元素左上角的坐标和元素的宽高。