var centerLatitude = 53.846424;
var centerLongitude = 10.929651;
var startZoom = 10;
var map;

function addMarker(latitude, longitude, description) {
	var marker = new GMarker(
		new GLatLng(latitude, longitude));

	GEvent.addListener(marker, 'mouseover',
		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;