HTML5获取地理位置信息并在Google Maps上显示

<!DOCTYPE HTML>
<html lang="en-US">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
    *{margin:0; padding:0;}
    .kingwell_test{font-size:12px; color:#333}
    #ms{height:30px; line-height:30px; font-size:1.25em}
    #map{width:400px; height:400px; margin:auto}
    </style>
    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
    <script type="text/javascript">
        function $(id) {
            return document.getElementById(id);
        }
        function showInfo(mes){
            $('ms').innerHTML = mes;
            setTimeout(function (){
                $('ms').innerHTML = '';
            },2000);
        };
        function getPosition(){
            if(!navigator.geolocation){
                //alert('不支持定位');
             return;
            }
            navigator.geolocation.getCurrentPosition(function(position){
                var coords = position.coords;
                $('latitude').innerHTML = coords.latitude;
                $('longitude').innerHTML = coords.longitude;
                $('accuracy').innerHTML = coords.accuracy;
                //设定地图参数
                var latlng = new google.maps.LatLng(coords.latitude,coords.longitude);
                var myOptions = {
                    zoom:14,
                    center:latlng,
                    mapTypeId : google.maps.MapTypeId.ROADMAP
                }
                var map1 = new google.maps.Map($('map'),myOptions);
                var marker = new google.maps.Marker({
                    position:latlng,
                    map :map1
                });
                var infowindow = new google.maps.InfoWindow({
                    content : '您当前位置'
                });
                infowindow.open(map1,marker);
            },function(er){
                var errorType = {
                    1 : '位置服务被拒绝',
                    2 : '获取不到位置信息',
                    3 : '获取信息超时'
                };
                showInfo(errorType[er.code]);
            },{
                enableHighAccuracy :false,
                //maximumAge : 60*1000/2,
                //timeout : 5000
            });
        }
        window.addEventListener('load',function(){
            getPosition();
        });

    </script>
</head>
<body>
    <div id="map"></div>
    <div class="kingwell_test">
        <div id="ms"></div>
        <div id="">经度：<span id="latitude"></span></div>
        <div id="">纬度：<span id="longitude"></span></div>
        <div id="">精确度：<span id="accuracy"></span></div>
    </div>
</body>
</html>

 

 

经度：

纬度：

精确度：