function addMap(){

	var WINDOW_HTML = '<div id="mapDetails"><p><strong>Parc Rittenhouse</strong><br />225 South 18th Street<br />Philadelphia, PA</p></div>';
    
	var map = new GMap(document.getElementById("mapDiv"));
	map.addControl(new GSmallMapControl());
	map.centerAndZoom(new GPoint(-75.170489, 39.949276), 1);
	var marker = new GMarker(new GPoint(-75.170489, 39.949276));
   map.addOverlay(marker);
	GEvent.addListener(marker, 'click', function() {
     marker.openInfoWindowHtml(WINDOW_HTML);
   });
   marker.openInfoWindowHtml(WINDOW_HTML);
}

window.onload = addMap;