/* [listing 2-3] */
var centerLatitude = 42.175466;
var centerLongitude = -122.672235;
var startZoom = 14;

var map;

function init()
{
    if (GBrowserIsCompatible()) {	
        map = new GMap2(document.getElementById("map"));
        map.addControl(new GSmallMapControl());
        var location = new GLatLng(centerLatitude, centerLongitude);
        map.setCenter(location, startZoom);
        var marker = new GMarker(location);
        map.addOverlay(marker);
    }
}

window.onload = init;
window.onunload = GUnload;
/* [listing 2-3 end] */