get province and city

position.js

/**
/* @param get callback for province and city
/* @param lat latitude
/* @param lng longitude
**/
function getPosition (get, lat, lng) {
    if (lat === undefined) {//auto get, if lat and lng was undefined
        if (navigator.geolocation) {//html 5 geolocation
            navigator.geolocation.getCurrentPosition(function (p_pos) {
                getPosition(get, p_pos.coords.latitude, p_pos.coords.longitude);
            });
        } else {//sina api
            $.getScript('http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js', function () {
                get(remote_ip_info.province, remote_ip_info.city);
            })
        }
    } else {//tencent soso map
        var center = new soso.maps.LatLng(lat, lng);
        map = new soso.maps.Map(document.getElementById('container'),{
            center: center,
            zoomLevel: 13
        });
        geocoder = new soso.maps.Geocoder();
        var latLng = new soso.maps.LatLng(lat, lng);
        var info = new soso.maps.InfoWindow({map: map});
        geocoder.geocode({'location': latLng}, function(results, status) {
            if (status == soso.maps.GeocoderStatus.OK) {
                get(results.addressComponents.province, results.addressComponents.city);
            } else {
                get(false, status);
            }
        });
    }
}