Scripting Forms via a Web Browser Control

Per KB 294865, I have found that I can put HTML content into a form. Now I
want to take it one step further by allowing scripts from the Web Control to
call functions in my Outlook form. How can I accomplish this? I have seen
scripts in the "Outlook Bar" HTML that uses the window.external property to
do what I am asking, but in my scripts, this property is useless. Can
anyone help?

- Rashad Rivera
Omegus Prime