function createGoogleMarker(point, text) {
    var marker = new GMarker(point);
    var html = "<b>" + text + "</b>";
    GEvent.addListener(marker, 'click',
           function() { marker.openInfoWindowHtml(html); });
    return marker;
} // End createGoogleMarker

var gmap = new GMap(document.getElementById("gmap"));
var gPoint = new GPoint(-88.908749,36.301984);
var gMarker = createGoogleMarker(gPoint, "This is a message box.");
gmap.addControl(new GLargeMapControl());
gmap.addControl(new GMapTypeControl());
gmap.centerAndZoom( new GPoint(-88.849354,36.341402), 5 );
gmap.addOverlay( gMarker );

function createYahooMarker(point, text) {
    var marker = new YMarker(point);
    var html = "<b>" + text + "</b>";
    YEvent.Capture(marker, EventsList.MouseClick,
           function() { marker.openSmartWindow(html) });
    return marker;
} // End createYahooMarker

var ymap = new YMap(document.getElementById("ymap")); 
var yPoint = new YGeoPoint(36.301984,-88.908749);
var yMarker = createYahooMarker(yPoint, "This is a message box.");
ymap.addPanControl();
ymap.addZoomLong();
ymap.drawZoomAndCenter( "38237", 6 );
ymap.addOverlay( yMarker );