跳转链接前通过浏览器获取定位信息

 <script type="text/javascript" src="http://webapi.amap.com/maps?v=1.3&key=5dacabfc3bd5924cdb6373195dcf68a0"></script>
    <script type="text/javascript">
        var map, geolocation;
        var lng, lat;
        //加载地图，调用浏览器定位服务
        map = new AMap.Map(‘iCenter‘, {
            resizeEnable: true
        });
        map.plugin(‘AMap.Geolocation‘, function () {
            geolocation = new AMap.Geolocation({
                enableHighAccuracy: true,//是否使用高精度定位，默认:true
                timeout: 10000,          //超过10秒后停止定位，默认：无穷大
                buttonOffset: new AMap.Pixel(10, 20),//定位按钮与设置的停靠位置的偏移量，默认：Pixel(10, 20)
                zoomToAccuracy: true,      //定位成功后调整地图视野范围使定位位置及精度范围视野内可见，默认：false
                buttonPosition: ‘RB‘
            });
            map.addControl(geolocation);
            geolocation.getCurrentPosition();
            AMap.event.addListener(geolocation, ‘complete‘, onComplete);//返回定位信息
            AMap.event.addListener(geolocation, ‘error‘, onError);      //返回定位出错信息
        });
        //解析定位结果
        function onComplete(data) {
            var str = [‘定位成功‘];
            str.push(‘经度：‘ + data.position.getLng());
            str.push(‘纬度：‘ + data.position.getLat());
            alert(str);
            lng = data.position.getLng();
            lat = data.position.getLat();
        }
        //解析定位错误信息
        function onError(data) {
            alert(‘定位失败‘);
        }
        function Guide() {
            window.location.href = "http://m.amap.com/navi/?start=" + lng + "," + lat + "&dest=<%=config.coordinateX%>,<%=config.coordinateY%>&destName=西路桥大道880-8号&naviBy=car&key=5dacabfc3bd5924cdb6373195dcf68a0";
        }
</script>