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我正在Phonegap Android中做一个关于GPS的项目。我想在位置标记的帮助下使用我当前的位置显示一些位置（医院、美食广场等）。在我下面的代码中，我成功地完全获得了当前位置。但不知道要显示其他位置的位置。。帮帮我这是我的代码..谢谢 

<script>
  function writeAddressName(latLng) {
    var geocoder = new google.maps.Geocoder();
    geocoder.geocode({
      "location": latLng
    },
    function(results, status) {
      if (status == google.maps.GeocoderStatus.OK)
        document.getElementById("address").innerHTML = results[0].formatted_address;
      else
        document.getElementById("error").innerHTML += "Unable to retrieve your address" + "<br />";
    });
  }

  function geolocationSuccess(position) {
    var userLatLng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
    // Write the formatted address
    writeAddressName(userLatLng);

    var myOptions = {
      zoom : 16,
      center : userLatLng,
      mapTypeId : google.maps.MapTypeId.ROADMAP
    };
    // Draw the map
    var mapObject = new google.maps.Map(document.getElementById("map"), myOptions);
    // Place the marker
    new google.maps.Marker({
      map: mapObject,
      position: userLatLng
    });
    // Draw a circle around the user position to have an idea of the current localization accuracy
    var circle = new google.maps.Circle({
      center: userLatLng,
      radius: position.coords.accuracy,
      map: mapObject,
      fillColor: '#0000FF',
      fillOpacity: 0.5,
      strokeColor: '#0000FF',
      strokeOpacity: 1.0
    });
    mapObject.fitBounds(circle.getBounds());
  }

  function geolocationError(positionError) {
    document.getElementById("error").innerHTML += "Error: " + positionError.message + "<br />";
  }

  function geolocateUser() {
    // If the browser supports the Geolocation API
    if (navigator.geolocation)
    {
      var positionOptions = {
        enableHighAccuracy: true,
        timeout: 10 * 1000 // 10 seconds
      };
      navigator.geolocation.getCurrentPosition(geolocationSuccess, geolocationError, positionOptions);
    }
    else
      document.getElementById("error").innerHTML += "Your browser doesn't support the Geolocation API";
  }

  window.onload = geolocateUser;
</script>
<style type="text/css">
  #map {
    width: 500px;
    height: 500px;
  }
</style>
</head>
<body>
   <h1>Basic example</h1>
<div id="map"></div>
<p><b>Address</b>: <span id="address"></span></p>
<p id="error"></p>
</body>
</html>
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