Getting the height of a UIWebView

gistfile1.m

-(void)webViewDidFinishLoad:(UIWebView *)webView{
    //Get the height of the web view, and change it's size to fit the content it's displaying.
    [webView setFrame:CGRectMake(webView.frame.origin.x, 
                                 webView.frame.origin.y, 
                                 320, 
                                [webView stringByEvaluatingJavaScriptFromString:@"document.body.offsetHeight;"].intValue)]; 
    
    //Change the scrollview's contentSize to accommodate the new height of the webView.
    self.scrollView.contentSize  = CGSizeMake(320, webView.frame.size.height+webView.frame.origin.y);
}