- (void)authenticateWithUser:(NSString *)_user andPassword:(NSString *)_password {
	if (_user == nil || _password == nil) {
		[[NSNotificationCenter defaultCenter] postNotificationName:TUserHasNotBeenAuthenticatedNotification
															object:nil
														  userInfo:nil];
	} else {
		NSURLConnection * connection;
		NSURL * url;
		NSString * stringUrl;
		NSMutableURLRequest * request;
		NSString * credentials;
		credentials = [NSString stringWithFormat:@"tiiptop:test", _user, _password];
		stringUrl = [NSString stringWithFormat:@"%@users/validate", [ObjectiveResourceConfig getSite]];
		url = [[NSURL alloc] initWithString:stringUrl];
		request = [[NSMutableURLRequest alloc] initWithURL:url];
		NSData * data = [NSData dataWithBase64EncodedString:credentials];
		[request addValue:[NSString stringWithFormat:@"Basic %s", [data bytes]]
	   forHTTPHeaderField:@"Authorization"];

		NSLog(@"%@", [request allHTTPHeaderFields]);
		connection = [[NSURLConnection alloc] initWithRequest:request
													 delegate:self
											 startImmediately:YES];

		[[NSUserDefaults standardUserDefaults] setValue:_user forKey:@"user"];
		[[NSUserDefaults standardUserDefaults] setValue:_password forKey:@"password"];
		[connection autorelease];
		[request release];
		[url release];
	}
}