Back Button with Anchor Link in Webview?

Question

I use UIWebView (in a view controller) to display html pages stored locally on the device. This web view is the "leaf" view from a series of table views using a navigation controller that provides the appropriately-labeled "back" buttons to the table hierarchy tree.
The problem is that in some of these html pages, I have anchor links to a footnotes html page also residing on the device, and then that web page does appear in the web view but I don't know how to go "back" to the previous web page leaf. The navigation bar of course shows a back button that goes back to one of the table views and not to the preceding web page, the origin of the linked web page.
So, from a UI and programming prospective, how do I change the navigation back button label to say "Back" (instead of the previous table view) and have it when clicked show the previous web page and not the previous table view?
Is there where I might use UIWebView delegate functions? But how do I get the navigation button to change its functionality?
Thanks for any help.

Answer 1

Is there where I might use UIWebView delegate functions? But how do I get the navigation button to change its functionality?
You can use the delegate functions to intercept each nav request...
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
or you can be told when new data was navigated to:
- (void)webViewDidFinishLoad:(UIWebView *)webView{
you can change the Nav bar's left button to be a custom view:
UIBarButtonItem *leftButton = [[[UIBarButtonItem alloc]
initWithTitle:NSLocalizedString(@"Back", @"")
style:UIBarButtonItemStyleBordered
target:self
action:@selector(goBack:)] autorelease];
self.navigationItem.leftBarButtonItem = leftButton;
You need to provide a function to perform the goBack.
hope this helps
michael golden