find_forecast_using_geo.js

locator.geo.getCurrentPosition(
    function ( pos ) {
        var lat = pos.coords.latitude,
            lon = pos.coords.longitude;
        
        // now use locator to search for a matching location
        // in the gazetter
        locator.searchByCoordinatesWithRadius(
            lon,
            lat,
            10000,
            function (res) {
                if ( res.results.length > 0 ) {
                    locator.setSharedLocationId( 
                        res.results[0].loc + '~' + res.results[0].site_name
                    );
                }
            }
        );
    } // end callback
); // end get position

geo.js

(function() {
    
    /**
        W3C GeoLocation module
        @experimental
        @module
        Currently uses:
            - W3C Geolocation API (Firefox 3.5+, MobileSafari)
            - Google Gears Geolocation (if Gears is installed, 
                and gears_init.js script is included).
                See: http://code.google.com/apis/gears/design.html#detecting
    */
    
    var GeoLocationNS = {
        
        //              W3C Geolocation             Google Gears
        isSupported: !!(navigator.geolocation) || !!(window.google && google.gears),
        
        getCurrentPosition: function ( successCallback, errorCallback, opts ) {
            
            // W3C Geolocation API
            if ( navigator.geolocation ) {
                navigator.geolocation.getCurrentPosition( 
                    successCallback, 
                    errorCallback, 
                    opts 
                );
            // Google Gears Geolocation API
            } else if ( google.gears ) {
                var geo = google.gears.factory.create('beta.geolocation');
                geo.getCurrentPosition( successCallback, errorCallback, opts);
            } else {
                errorCallback({
                    code: 2,
                    message: 'User agent doesn\'t support geolocation interface'
                });
            }
        },
        
        /**
            These are also part of the W3C spec but are currently
            inimplemented.
        */
        watchPosition: function () {
            throw new Error('watchPosition is not implemented');
        },
        
        clearWatch: function () {
            throw new Error('clearWatch is not implemented');
        }
        
    };

    // Namespace and attach to global locator
    if (!window.locator) { window.locator = {}; }
    window.locator.geo = GeoLocationNS;
    
})();

gistfile3.txt