Adding google map options to the public_maps.js

Where would be the correct place to add the mapOptions in the public_maps.js code. (I will be saving a copy outside of the core folder)

if (typeof CMSMap == 'undefined') {
    CMSMap  = {};
}

CMSMap.UI   = function()
{
    var api_key;

    var init    = function() {
        if (CMSMap.maps.length) {           
            plot_maps();
        }
    };

    var plot_maps = function() {
        var i, l, data, img, mapdiv, latlng, opts, map, point, marker;
        for (i=0,l=CMSMap.maps.length; i<l; i++) {
            data   = CMSMap.maps[i];
            img    = document.getElementById(data.mapid);
            mapdiv = document.createElement('div');
            mapdiv.setAttribute('id', 'd'+data.mapid);
            mapdiv.setAttribute('class', 'cmsmap');
            if (data.width) mapdiv.style.width   = data.width+'px';
            if (data.height) mapdiv.style.height = data.height+'px';
            img.parentNode.insertBefore(mapdiv, img);
            img.parentNode.removeChild(img);

            latlng = new google.maps.LatLng(data.clat, data.clng);
            opts = {
                zoom: parseInt(data.zoom,10),
                center: latlng
            };
            switch(data.type) {
                case 'satellite': opts.mapTypeId = google.maps.MapTypeId.SATELLITE; break;
                case 'hybrid'   : opts.mapTypeId = google.maps.MapTypeId.HYBRID; break;
                case 'terrain'  : opts.mapTypeId = google.maps.MapTypeId.TERRAIN; break;
                default         : opts.mapTypeId = google.maps.MapTypeId.ROADMAP; break;
            }

            map = new google.maps.Map(mapdiv, opts);
            point = new google.maps.LatLng(data.lat, data.lng);
            marker = new google.maps.Marker({
                position: point, 
                map: map, 
                title: data.adr.replace(/\\/g, '')
            });

            CMSMap.maps[i].gmap = map;
            CMSMap.maps[i].latlng = latlng;
        }
    };

    var refresh = function() {
        var i, l;
        for(i=0, l=CMSMap.maps.length; i<l; i++) {
            google.maps.event.trigger(CMSMap.maps[i].gmap, 'resize');
            CMSMap.maps[i].gmap.setCenter(CMSMap.maps[i].latlng);
        }
        return true;
    };

    return {
        init: init,
        refresh: refresh,
        key: api_key
    };

}();

CMSMap.Loader = function(){
    var func = CMSMap.UI.init;
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
            func();
        };
    }
}();

var load_google_map_api = function(){
    var js = document.createElement("script");
    js.type = "text/javascript";
    js.src = 'https://maps.googleapis.com/maps/api/js?key='+CMSMap.key;
    if (typeof document.head != 'object') {
        document.body.appendChild(js);
    }else{
        document.head.appendChild(js);
    }
}();