how to pass arraySection element or [arraySection objectForKey:@"id"] to a button?

passing object to a UIButton

#define PADDING_VERTICAL 5.0f
#define BUTTON_HEIGHT 40.0f
#define BUTTON_WIDTH 160.0f
#define BUTTON_ORIGIN_X (320.0f - BUTTON_WIDTH)/2.0f
#define BUTTON_ORIGIN_Y 20.0f

- (void)initButtons{
	NSLog(@"MainViewController.initButtons");
	
	if(arraySections == nil){
		DataAccess *da = [[DataAccess alloc] init];
		arraySections = [[[NSMutableArray alloc] initWithArray:[da getMainSections]] autorelease];
		[da release];
	}
	
	CGFloat totalHeight = BUTTON_ORIGIN_Y;
	
	UIImage* buttonImage = [UIImage imageNamed:@"button_center_light_gray.png"];

	for(NSDictionary* section in arraySections){
		NSString* title = [section objectForKey:@"title"];
		
		UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
		button.frame = CGRectMake(BUTTON_ORIGIN_X, totalHeight, BUTTON_WIDTH, BUTTON_HEIGHT);
		[button setBackgroundImage:buttonImage forState:UIControlStateNormal];
		
		[button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchDown];
		[button setTitle:title forState:UIControlStateNormal];
		
		button.titleLabel.font = [UIFont boldSystemFontOfSize:14.0f];
		
		[self.view addSubview:button];
		
		totalHeight = totalHeight + BUTTON_HEIGHT + PADDING_VERTICAL;
	} 
}

- (void)buttonPressed:(id)sender{
	UIButton* button = (UIButton*)sender;
	NSLog(@"MainViewController.buttonPressed %@ tag: %@", [button currentTitle], [button tag]);
}