jQuery.VoOverviewMap = function(prefix) {
    var p = prefix;
    var map;
    this.init = function() {
        if (GBrowserIsCompatible()) {
            map = new GMap2(document.getElementById(p + "map_canvas"));
            var path = jQuery("#" + p + "overlaypath").val();
            var geoXml = new GGeoXml(path);
            map.setCenter(new GLatLng(57.1146, 14.1825), 6);
            map.setUIToDefault();
            map.addOverlay(geoXml);
        }
    };

    this.addEvent = function(event, callback) {
        GEvent.addListener(map, event, callback);
    };
};