<apex:page standardController="Account">
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=places"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> 
<script type="text/javascript"> 

$(document).ready(function() {

  var myOptions = {
    zoom: 15,
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    mapTypeControl: false
  }

  var map;
  var marker;

  var geocoder = new google.maps.Geocoder();
  var address = "{!Account.BillingStreet}, " + "{!Account.BillingCity}, " + "{!Account.BillingPostalCode}";

  var infowindow = new google.maps.InfoWindow({
    content: "<b>{!Account.Name}</b><br>{!Account.BillingStreet}<br>{!Account.BillingCity}, {!Account.BillingPostalCode}"
  });
  
  geocoder.geocode( { address: address}, function(results, status) {
    if (status == google.maps.GeocoderStatus.OK && results.length) {
      if (status != google.maps.GeocoderStatus.ZERO_RESULTS) {

        //create map
        map = new google.maps.Map(document.getElementById("map"), myOptions);

        //center map
        
        map.setCenter(results[0].geometry.location);
        

        //create marker
        marker = new google.maps.Marker({
        
            position: results[0].geometry.location,
            map: map,
            title: "{!Account.Name}"
            
        });

        //add listeners
        google.maps.event.addListener(marker, 'click', function() {
          infowindow.open(map,marker);
        });
        google.maps.event.addListener(infowindow, 'closeclick', function() {
          map.setCenter(marker.getPosition()); 
        });
        
        var request = {
            location: results[0].geometry.location,
            radius: 500,
            types: ['restaurant']
        };
        infowindowPlace = new google.maps.InfoWindow();
        var service = new google.maps.places.PlacesService(map);
        service.nearbySearch(request, callback);

      }

    } else {
      $('#map').css({'height' : '15px'});
      $('#map').html("Oops! {!Account.Name}'s billing address could not be found, please make sure the address is correct.");
      resizeIframe();
    }
  });

function callback(results, status) {
  if (status == google.maps.places.PlacesServiceStatus.OK) {
    for (var i = 0; i < results.length; i++) {
      createMarker(results[i]);
    }
  }
}

function createMarker(place) {
  var placeLoc = place.geometry.location;
  var marker = new google.maps.Marker({
    map: map,
    position: place.geometry.location
  });

  google.maps.event.addListener(marker, 'click', function() {
    infowindowPlace.setContent(place.name);
    infowindowPlace.open(map, this);
  });
}

  function resizeIframe() {
    var me = window.name;
    if (me) {
      var iframes = parent.document.getElementsByName(me);
      if (iframes && iframes.length == 1) {
        height = document.body.offsetHeight;
        iframes[0].style.height = height + "px";
      }
    }
  }

});
</script>

<style>
#map {
  font-family: Arial;
  font-size:12px;
  line-height:normal !important;
  height:500px;
  background:transparent;
}
</style>

<div id="map"></div> 

</apex:page>