var map = null;
var geocoder = null;

// Creates a marker at the given point with the given number label
function createMarker(point, address) {
  var marker = new GMarker(point);
  GEvent.addListener(marker, "click", function() {
    marker.openInfoWindowHtml(address);
  });
  return marker;
}

function load() {
  if (GBrowserIsCompatible()) {
    map = new GMap2(document.getElementById("map"));

    map.setCenter(new GLatLng(33.45410, -88.789606), 12);
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());
    //map.addOverlay(new GMarker(33.45410, -88.789606));
    map.addOverlay(new GMarker(map.getCenter()));
    map.addOverlay(createMarker(map.getCenter(), 'MSU Drill Field'));
    geocoder = new GClientGeocoder();
  }
}

function showAddress(show_maps, address, show_name) {
  if (show_maps == 'y') {
    map = new GMap2(document.getElementById("map"));
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());
    geocoder = new GClientGeocoder();
    if (geocoder) {
      geocoder.getLatLng(
        address,
        function(point) {
          if (!point) {
            alert(address + " not found");
          } else {
            map.setCenter(point, 13);
            //var marker = new GMarker(point);
            //map.addOverlay(marker);
            marker = createMarker(point, show_name)
            map.addOverlay(marker);
            marker.openInfoWindowHtml(show_name);
          }
        }
      );
    }
  }
}