I've created one button like this:
close=[[UIButton alloc]init];
close.frame=CGRectMake(285, 0, 35, 50);
[self.view addSubview:close];
[close setBackgroundImage:[UIImage imageNamed:@"close2.jpg"] forState:UIControlStateNormal];
[close addTarget:self action:@selector(aclose:) forControlEvents:UIControlEventTouchDown];
and I have one NSString. When I click on the button, I need to pass the image name to NSString. Is that possible?