function showMap(zoom) {
    //set up map
    //default geotags for glasgow G2 geo:lat=55.8645 geo:long=-4.2641
    var point = new GPoint(-4.2641,55.8645);
    var map = new GMap(document.getElementById("map"));
    map.addControl(new GSmallMapControl());
    map.centerAndZoom(point,zoom);
    map.addOverlay(new GMarker(new GPoint(-4.2641,55.8645)));
}

function showMapLL(zoom,lat,lng) {
    //set up map
    var point2 = new GPoint(lng,lat);
    var map2 = new GMap(document.getElementById("map2"));
    map2.addControl(new GSmallMapControl());
    map2.centerAndZoom(point2,zoom);
    map2.addOverlay(new GMarker(new GPoint(lng,lat)));
}