JavaScript 获得坐标

<!DOCTYPE html>
<html>
        <head>
        <title>location</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <meta name="viewport" 
              content="width=device-width;
              initial-scale=1.0;
              maximum-scale=1.0;
              user-scalable=0;
              target-densitydpi=device-dpi;"/>
    </head>
<body>
<p id="demo">点击这个按钮，获得您的坐标：</p>
<button onclick="getLocation()">试一下</button>
<div id="mapholder"></div>
<script src="http://maps.google.com/maps/api/js?sensor=false">
</script>
<script>
var x=document.getElementById("demo");
function getLocation()
  {
  if (navigator.geolocation)
    {
    navigator.geolocation.getCurrentPosition(showPosition,showError,{enableHighAccuracy:false,maximumAge:1000,timeout:15000});
    }
  else{x.innerHTML="Geolocation is not supported by this browser.";}
  }
function showPosition(position)
  {
  x.innerHTML="Latitude: " + position.coords.latitude + 
  "<br />Longitude: " + position.coords.longitude;	
  }
  function showError(error){
  switch(error.code){
  case error.PERMISSION_DENIED:
	x.innerHTML="User denied the request for Geolocation";
  break;
  case error.POSITION_UNAVAILABLE:
    x.innerHTML="Location information is unavailable";
  break;
  case error.TIMEOUT:
    x.innerHTML="The request to get user location timed out";
  break;
  case error.UNKNOWN_ERROR:
    x.innerHTML="An unknown error occurred.";
  break;
  }
  }
</script>
</body>
</html>
JavaScript 获得 坐标

JavaScript 获得坐标
