overrides : {
    list_entries : function(options_or_callback, callback){
      var params = '', extracted, cb;
      extracted = ars.api.extract_params_and_callback(options_or_callback, callback);

      cb = function(entries){
        ars.api.offline.store_query(params, entries);
        extracted[1](entries);
      };

      if(!params){
        arguments.callee.original.call(this, cb);
      }else{
        arguments.callee.original.call(this, options_or_callback, cb);
      }
    },
    get_bookmarks : function(callback){
      arguments.callee.original.call(this, callback);
    },
    delete_bookmark : function(callback){
      arguments.callee.original.call(this, callback);
    }
  }
};

ars.api.prototype.offline = function(options){
  var m, original;
  if(!this.offline.enabled){
    this.offline.enabled = true;

    for(m in ars.api.offline.overrides){
      if(ars.api.offline.overrides.hasOwnProperty(m)){
        original = this[m];
        this[m] = ars.api.offline.overrides[m];
        this[m].original = original;
      }
    }
  }
};