function ltn()
{
   if (GBrowserIsCompatible())
    {
        var map = new GMap2(document.getElementById("map"));
        map.addControl(new GSmallZoomControl());
        map.setCenter(new GLatLng(53.298575, -3.756373), 14);

        // Create our "tiny" marker icon
        var myIcon = new GIcon();
        myIcon.image = "http://www.colwynfireplacecentre.co.uk/images/smallredmarker.png";
        myIcon.shadow = "http://www.colwynfireplacecentre.co.uk/images/smallredmarker_shadow.png";
        myIcon.iconSize = new GSize(12, 20);
        myIcon.shadowSize = new GSize(22, 20);
        myIcon.iconAnchor = new GPoint(6, 20);
        myIcon.infoWindowAnchor = new GPoint(5, 1);

        var point = new GLatLng(53.298575, -3.756373);
        var info = "Colwyn Fireplace Centre, Bron-y-Nant Road, Mochdre";
        map.addOverlay(createMarker(point, info));
    }
    function createMarker(pos, desc)
    {
        var marker = new GMarker(pos, {icon:myIcon, title:desc});
        GEvent.addListener(marker, "click", function() {
            map.setCenter(pos, 15);
        });
        return marker;
    }
}

window.onload = ltn;
window.onunload = GUnload;