Is it possible for the html button in the contents of a UIWebView to load a new ViewController?

I am developing a mono touch application and need to UIWebViewoccupy the entire screen (until the navigation controller is displayed), but there is a button in the contents of the WebView that allows you to load a new ViewController to scan the barcode. I'm not quite sure how to do this when the button is in the actual HTML content, and not on the side. Is it possible?