if (GBrowserIsCompatible())
   {
   map = new GMap2(document.getElementById("map"));
   map.addControl(new GLargeMapControl());
   map.setCenter(new GLatLng(39.707, -94.5703), 4);
   map.enableScrollWheelZoom();
   map.enableDoubleClickZoom();
   tooltip = document.createElement("div");
   tooltip.style.visibility="hidden";
   tooltip.className="tooltip";
   map.getPane(G_MAP_FLOAT_PANE).appendChild(tooltip);
   kmh = new GKeyboardHandler(map);
   loadXMLDoc("/centers.xml", processReq);
   }