/*** 以下为html5代码,获取地理位置*//** * 设置地址 */function setAddress(json) {    var position = document.getElementById("txtPosition");    //省    var province = json.province;        //市    var city = json.city;    //区    var district = json.district;    province = province.replace(‘市‘, ‘‘);     position.value = province + "," + city + "," + district;    position.style.color = ‘black‘;   }/*** 获取地址位置成功*/function showPosition(position) {    //获得经度纬度    var x = position.coords.latitude;    var y = position.coords.longitude;    //配置Baidu Geocoding API    var url = "http://api.map.baidu.com/geocoder/v2/?ak=C93b5178d7a8ebdb830b9b557abce78b" +            "&callback=renderReverse" +            "&location=" + x + "," + y +            "&output=json" +            "&pois=0";    $.ajax({        type: "GET",        dataType: "jsonp",        url: url,        success: function (json) {            if (json == null || typeof (json) == "undefined") {                return;            }            if (json.status != "0") {                return;            }            setAddress(json.result.addressComponent);        },        error: function (XMLHttpRequest, textStatus, errorThrown) {            alert("[x:" + x + ",y:" + y + "]地址位置获取失败,请手动选择地址");        }    });}/*** 获取地址位置失败[暂不处理]*/function showError(error) {    switch (error.code) {        case error.PERMISSION_DENIED:            alert("定位失败,用户拒绝请求地理定位");            //x.innerHTML = "User denied the request for Geolocation.[用户拒绝请求地理定位]"            break;        case error.POSITION_UNAVAILABLE:            alert("定位失败,位置信息是不可用");            //x.innerHTML = "Location information is unavailable.[位置信息是不可用]"            break;        case error.TIMEOUT:            alert("定位失败,请求获取用户位置超时");            //x.innerHTML = "The request to get user location timed out.[请求获取用户位置超时]"            break;        case error.UNKNOWN_ERROR:            alert("定位失败,定位系统失效");            //x.innerHTML = "An unknown error occurred.[未知错误]"            break;    }}function getLocation() {    //检查浏览器是否支持地理位置获取    if (navigator.geolocation) {        //若支持地理位置获取,成功调用showPosition(),失败调用showError        //        alert("正在努力获取位置...");        var config = { enableHighAccuracy: true, timeout: 5000, maximumAge: 30000 };        navigator.geolocation.getCurrentPosition(showPosition, showError, config);    } else {        //alert("Geolocation is not supported by this browser.");        alert("定位失败,用户已禁用位置获取权限");    }}