jgame.config = {
    _values : JSON.parse (jgame.file_get ('~/default.cfg')),
    getVal : function (key) {
        var ret = this._rGet (key.split ('.'),this._values) ;
        print ("getVal("+key+") = "+ret+"\n") ;
        return ret ;
    },
    setVal : function (key,val) {
        print ("setVal("+key+","+val+")\n") ;
        return this._rSet (key.split ('.'),val,this._values) ;
    },
    _rSet : function (key,val,root) {
        var step = key.shift () ;
        if (key.length > 0) {
            if (typeof (root [step]) != 'object')
                root [step] = new Object ;
            return this._rSet (key,val,root [step]) ;
        }
        return root [step] = val ;
    },
    _rGet : function (key,root) {
        var step = key.shift () ;
        if (key.length > 0 && typeof (root [step]) != 'undefined') {
            return this._rGet (key,root [step]) ;
        }
        return root [step]  ;
    }
} ;