var map = null;
   
function load() {
      if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map"));
 map.addControl(new GLargeMapControl());      
 
	 
      }
    }	
   
function ShowMap(zoom) {     	       
	map.setCenter(new GLatLng(51.529594, -0.13067), zoom); 
	map.addControl(new GLargeMapControl());  
	}    
    
function AddMarker(point,text,link) {
		var numpts = point.split(",");
		var lat = parseFloat(numpts[0].substring(1,10));
		var lng = parseFloat(numpts[1].substring(1,10));	
		  var ppoint = new GLatLng(lat,lng);		 
			  var marker = new GMarker(ppoint);			  		  
			  map.addOverlay(marker);			 	  
	GEvent.addListener(marker, "mouseover", function() {    marker.openInfoWindowHtml("<b><font size='1'>" + text + "</font></b><br>" + link);  });
            }