Google maps api.

JScript kode 

 function initialize() {
 var mapProp = {
 center:new google.maps.LatLng(51.508742,-0.120850),
 zoom:5,
 mapTypeId:google.maps.MapTypeId.ROADMAP
 };
 
 var map=new google.maps.Map(document.getElementById("googleMap"),mapProp);
 
   geocoder = new google.maps.Geocoder();
   geocoder.geocode( { 'address': 'københavn, denmark'}, function(results, status) {
   map.setCenter(results[0].geometry.location);
       var marker = new google.maps.Marker({
           map: map,
           position: results[0].geometry.location
       });
 });
 }
 google.maps.event.addDomListener(window, 'load', initialize);