var icon = new GIcon();
icon.image = "http://www.google.com/mapfiles/marker.png";
icon.shadow = "http://www.google.com/mapfiles/shadow50.png";
icon.iconSize = new GSize(20, 34);
icon.shadowSize = new GSize(37, 34);
icon.iconAnchor = new GPoint(10, 34);

function loadLocation() {
  if (GBrowserIsCompatible()) {
    var map = new GMap2(document.getElementById("map_canvas"))
    map.setCenter(new GLatLng(50.925937, -1.302716), 13);
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());
	var marker = new GMarker(map.getCenter(),icon);
	map.addOverlay(marker);  
  }
}