Calling a form on a different frame

How do you call a form on a different frame to submit the data to the Server?

like this:

Or if you are using javascript and you want to have a button in one frame that calls form items in another frame it would look something like this:
parent.child_name.form_name.form_item.value;
You go back up one to parent, then down to the child frame you want, and then to the form name, etc... If my syntax is not exactly correct for both browsers, go over to www.javascript.com and do a search for parent and frames.
Hope that helps,
Bill