var map;
var centerLatitude = 40.6897;
var centerLongitude = -74.0446;
var startZoom = 3;

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);
		
		for(id in markers) {
			addMarker(markers[id].latitude, markers[id].longitude, markers[id].name);
		}
	}
}
window.onload = init;
window.onunload = GUnload;