title: How to close UIWebView created programmatically?
body: <p>I have the following code to create UIWebView programmatically and create UIButton on top of it to close it. The creation is OK, but the problem I can't refer back to the created UIWebView to close it from the button!</p>
  
  <pre><code>UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
  NSURL *url = [NSURL URLWithString:@"http://www.google.com"];
  NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
  [webView loadRequest:requestObj];
  [self.view addSubview:webView];
  
  UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
  [button addTarget:self 
             action:@selector(aMethod:)
   forControlEvents:UIControlEventTouchDown];
  [button setTitle:@"Close" forState:UIControlStateNormal];
  button.frame = CGRectMake(80, 210, 160, 40);
  [button addTarget:self action:@selector(close:) forControlEvents:UIControlEventTouchUpInside];
  [webView addSubview:button];
  
  - (IBAction)close:(id)sender {
  ????
  }
  </code></pre>
  
  <p>Thanks for your help in advance :)</p>