function initialize() 
{
	if (GBrowserIsCompatible()) 
	{
         var map = new GMap2(document.getElementById("map_canvas"));
         map.setCenter(new GLatLng(52.1536,  11.63289), 15);
         
         var point = new GLatLng(52.1536,  11.63289);
	     map.addOverlay(new GMarker(point));

       }
}