Помогите новичку!

if (GBrowserIsCompatible()) {

      // A function to create the marker and set up the event window
      // Dont try to unroll this function. It has to be here for the function closure
      // Each instance of the function preserves the contends of a different instance
      // of the "marker" and "html" variables which will be needed later when the event triggers.   
      function createMarker(point,html) {
        var marker = new GMarker(point);
        GEvent.addListener(marker, "click", function() {
          marker.openInfoWindowHtml(html);
        });
        return marker;
      }

      // Display the map, with some controls and set the initial location
      var map = new GMap2(document.getElementById("map"));
      map.addControl(new GLargeMapControl());
      map.addControl(new GMapTypeControl());
      map.setCenter(new GLatLng(43.907787,-79.359741),8);
   
      // Set up three markers with info windows
   
      var point = new GLatLng(43.65654,-79.90138);
      var marker = createMarker(point,'<div style="width:240px">Some stuff to display in the First Info Window</div>')
      map.addOverlay(marker);

      var point = new GLatLng(43.91892,-78.89231);
      var marker = createMarker(point,'Some stuff to display in the<br>Second Info Window')
      map.addOverlay(marker);

      var point = new GLatLng(43.82589,-79.10040);
      var marker = createMarker(point,'Some stuff to display in the<br>Third Info Window')
      map.addOverlay(marker);

    }