var startZoom = 13;
var map;

function addMarker(latitude, longitude, description) {
		var marker = new GMarker(new GLatLng(latitude, longitude));
		GEvent.addListener(marker, 'click',	function() {
			marker.openInfoWindowHtml(description);
			}
		);
	map.addOverlay(marker);
}

function init() {
	if (GBrowserIsCompatible()) {
		map = new GMap2(document.getElementById("map"));
		map.addControl(new GSmallMapControl());
		map.setCenter(new GLatLng(centerLatitude, centerLongitude), startZoom);
		addMarker(centerLatitude, centerLongitude, description);
	}
}

window.onload = init;
window.onunload = GUnload;