rem: this._passwordTried = false; 
context:     setAuthentication: function(username, password){        if ((typeof username == "string") &&            (typeof password == "string")){          this._useAuth = true;          this._username = username;          this._password = password;          this._passwordTried = false;        }    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/5f11afa8ceea71990008ca0608655a89d77fee2f/nsXmlRpcClient.js/buggy/extensions/xml-rpc/src/nsXmlRpcClient.js