UIWebView text field problem

I have a standard UIWebView, but part of the page has a text field that will be covered by the keyboard. I know that I have to force the frame of the UIWebView to move up when the keyboard is called and then move it back down once its dismissed and have read numerous examples but everything I've found deals with UITextFields and not textfields within web views.

Any ideas? I was trying to use the keyboardWillShow and keyboardWillHide notifications, but I'm not good enough yet to make it all work.

Thanks