网上找到的一个案例
先 设置 map为null
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var markers = [
{
"title": 'Aksa Beach',
"lat": '19.1759668',
"lng": '72.79504659999998',
"description": 'Aksa Beach is a popular beach and a vacation spot in Aksa village at Malad, Mumbai.'
},
{
"title": 'Juhu Beach',
"lat": '19.0883595',
"lng": '72.82652380000002',
"description": 'Juhu Beach is one of favourite tourist attractions situated in Mumbai.'
},
{
"title": 'Girgaum Beach',
"lat": '18.9542149',
"lng": '72.81203529999993',
"description": 'Girgaum Beach commonly known as just Chaupati is one of the most famous public beaches in Mumbai.'
},
{
"title": 'Jijamata Udyan',
"lat": '18.979006',
"lng": '72.83388300000001',
"description": 'Jijamata Udyan is situated near Byculla station is famous as Mumbai (Bombay) Zoo.'
},
{
"title": 'Sanjay Gandhi National Park',
"lat": '19.2147067',
"lng": '72.91062020000004',
"description": 'Sanjay Gandhi National Park is a large protected area in the northern part of Mumbai city.'
}
];
window.onload = function () {
LoadMap();
};
var map;
var marker;
function LoadMap() {
var mapOptions = {
center: new google.maps.LatLng(markers[0].lat, markers[0].lng),
zoom: 10,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
SetMarker(0);
};
function SetMarker(position) {
//Remove previous Marker.
if (marker != null) {
marker.setMap(null);
}
//Set Marker on Map.
var data = markers[position];
var myLatlng = new google.maps.LatLng(data.lat, data.lng);
marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title
});
//Create and open InfoWindow.
var infoWindow = new google.maps.InfoWindow();
infoWindow.setContent("<div style = 'width:200px;min-height:40px'>" + data.description + "</div>");
infoWindow.open(map, marker);
};
</script>
<div>
<label for="rbMarker0">
<input type="radio" id="rbMarker0" name="rbMarker" value="0" onclick="SetMarker(this.value)"
checked="checked" />Aksa Beach</label><br />
<label for="rbMarker1">
<input type="radio" id="rbMarker1" name="rbMarker" value="1" onclick="SetMarker(this.value)" />Juhu
Beach</label><br />
<label for="rbMarker2">
<input type="radio" id="rbMarker2" name="rbMarker" value="2" onclick="SetMarker(this.value)" />Girgaum
Beach</label><br />
<label for="rbMarker3">
<input type="radio" id="rbMarker3" name="rbMarker" value="3" onclick="SetMarker(this.value)" />Jijamata
Udyan</label><br />
<label for="rbMarker4">
<input type="radio" id="rbMarker4" name="rbMarker" value="4" onclick="SetMarker(this.value)" />Sanjay
Gandhi National Park</label>
</div>
<hr />
<div id="dvMap" style="width: 400px; height: 500px">
</div>
