title: UIWebView: how do I start from a blank view each time?
body: <p>I'm looking up web pages using <code>UIWebView</code> and <code>NSURLRequest</code> and it's working fine, but I want it to start with a blank page each time, rather than displaying the results of the last URL lookup.  Is there an easy way to do that?</p>
  
  <p>I'm doing this in <code>viewDidLoad:</code></p>
  
  <pre><code>wikiText = [[[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 370)] autorelease];
  [wikiView addSubview:wikiText];
  </code></pre>
  
  <p>...and then I load the <code>UIWebView</code> like this:</p>
  
  <pre><code>NSString *urlAddress =[NSString stringWithFormat: @"http://%@", randomEWiki];
  
  NSURL *url = [NSURL URLWithString:urlAddress]; 
  
  NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
  
  [wikiText loadRequest:requestObj]; 
  </code></pre>