gistfile1.txt

decode: function (encoded, precision) {
        precision = Math.pow(10, -precision);
        var len = encoded.length, index = 0, lat = 0, lng = 0, array = [];
        while (index < len) {
            var b, shift = 0, result = 0;
            do {
                b = encoded.charCodeAt(index++) - 63;
                result |= (b & 0x1f) << shift;
                shift += 5;
            } while (b >= 0x20);
            lat += ((result & 1) ? ~(result >> 1) : (result >> 1));
            shift = 0;
            result = 0;
            do {
                b = encoded.charCodeAt(index++) - 63;
                result |= (b & 0x1f) << shift;
                shift += 5;
            } while (b >= 0x20);
            lng += ((result & 1) ? ~(result >> 1) : (result >> 1));
            array.push([lat * precision, lng * precision]);
        }
        return array;
    }