html5 定位

/*
    * 定位函数
    */
    var locPos = function(){
        // 百度地图API功能
        var geolocation = new BMap.Geolocation();
        geolocation.getCurrentPosition(function(r){

            if(this.getStatus() == BMAP_STATUS_SUCCESS){
                var mk = new BMap.Marker(r.point);

                var gc = new BMap.Geocoder();
              
                var pt = new BMap.Point(r.point.lng,r.point.lat);
                gc.getLocation(pt, function(rs){
                  var addComp = rs.addressComponents;
                  address = addComp.province +  addComp.city + addComp.district + addComp.street + addComp.streetNumber;

                  $(‘#loc‘).text(address);
                });
            
            }else {
              alert(‘failed‘+this.getStatus());
            } 

        },{enableHighAccuracy: true})

    }