$(document).ready(function() {

 function doGoogleMap() {
  if (self.GBrowserIsCompatible) {
   var map = new GMap2(document.getElementById("map"));
   map.setCenter(new GLatLng(52.87313191447609, -1.6456317901611328), 15);
   map.removeMapType(G_HYBRID_MAP);
   map.addControl(new GLargeMapControl());
   map.addControl(new GMapTypeControl());
   map.setMapType(G_NORMAL_MAP);
   map.enableScrollWheelZoom();

   marker = new GMarker(new GLatLng(52.87313191447609, -1.6456317901611328));
   GEvent.addListener(marker, "click", function() {
    marker.openInfoWindowHtml("<span class=\'mapinfo\'>Alpha Construction Ltd<br />Civil Engineering and Building Contractor<br />Alpha House<br />Hilton<br />Derbyshire<br />DE65 5GE</span>");
   });
   map.addOverlay(marker);

  }//if
 }//function

 doGoogleMap();

});