if (GBrowserIsCompatible()) { 

      // A function to create the marker and set up the event window
      // Dont try to unroll this function. It has to be here for the function closure
      // Each instance of the function preserves the contends of a different instance
      // of the "marker" and "html" variables which will be needed later when the event triggers.    
      function createMarker(point,html) {
        var marker = new GMarker(point);
        GEvent.addListener(marker, "click", function() {
          marker.openInfoWindowHtml(html);
        });
        return marker;
      }

      // Display the map, with some controls and set the initial location 
      var map = new GMap2(document.getElementById("map"));
      map.addControl(new GLargeMapControl());
      map.addControl(new GMapTypeControl());
      map.setCenter(new GLatLng(52.475065235931275,-1.8883180618286133),13);
    
      // Set up three markers with info windows 
    
      var point = new GLatLng(52.46872636871821,-1.8777984380722046);
      var marker = createMarker(point,'<div style="width:240px; text-align:center; margin-top:10px;"><h4><span>Ultimate Banners</span></h4><\/div>')
      map.addOverlay(marker);

     
    }
    
    // display a warning if the browser was not compatible
    else {
      alert("Sorry, the Google Maps API is not compatible with this browser");
    }