function prepare_map() {
	var elem = document.getElementById("map");
        if(elem != null){
		var map = new GMap(elem);
		var point = new GPoint(1.006815, 51.197257);
		address = "VisionPower&nbsp;Limited<br />Richdore&nbsp;Road<br />Waltham<br />Canterbury<br />Kent&nbsp;CT4&nbsp;5SL<br />United Kingdom";
		var marker = createInfoMarker(point, address);
		var centre = new GPoint(-3.2111115,54.2931845);
		map.centerAndZoom(centre, 12);
		map.addControl(new GLargeMapControl());
		map.addOverlay(marker);
	}
}

function createInfoMarker(point, address){

	var marker = new GMarker(point);

	GEvent.addListener(marker, "click",

		function(){

			marker.openInfoWindowHtml(address);

		}

	);

	return marker;

}


add_load_event(prepare_map);