function initialize() {
    var latlng1 = new google.maps.LatLng(51.5139440954445, -0.128825178650983);
    var myOptions1 = {
      zoom: 14,
      center: latlng1,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map1 = new google.maps.Map(document.getElementById("map1"), myOptions1);
	
	var latlng2 = new google.maps.LatLng(51.5426725200878, -2.57218216467423);
    var myOptions2 = {
      zoom: 14,
      center: latlng2,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map2 = new google.maps.Map(document.getElementById("map2"), myOptions2);
	
	var latlng3 = new google.maps.LatLng(53.3892014622688, -2.5742494314909);
    var myOptions3 = {
      zoom: 14,
      center: latlng3,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map3 = new google.maps.Map(document.getElementById("map3"), myOptions3);
	
	var latlng4 = new google.maps.LatLng(51.7630438506603, -0.21355614066124);
    var myOptions4 = {
      zoom: 14,
      center: latlng4,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map4 = new google.maps.Map(document.getElementById("map4"), myOptions4);
	
	
	var marker1 = new google.maps.Marker({ position: latlng1, title: "Milestone Head Office"});
	var marker2 = new google.maps.Marker({ position: latlng2, title: "Milestone Bristol Office"});
	var marker3 = new google.maps.Marker({ position: latlng3, title: "Milestone Warrington Office"});
	var marker4 = new google.maps.Marker({ position: latlng4, title: "Milestone Hatfield Office"});
	marker1.setMap(map1);
	marker2.setMap(map2);
	marker3.setMap(map3);
	marker4.setMap(map4);
  }
  
  function loadScript() {
	  var script = document.createElement("script");
	  script.type = "text/javascript";
	  script.src = "http://maps.google.com/maps/api/js?sensor=false&callback=initialize";
	  document.body.appendChild(script);
	}
  
	window.onload = loadScript;