Flash/HTMl frames

I have a question about flash and html frames…
i have my frames set up basicly like this,
the left frame is 20% of the browser width, and the main fraime is 80%…

with frame names of “left” and “main”…
If i put a flash menu in the left frame, what AS would i use on the button to have the page load into the main frame???

right now i have:
on(release) {
getURL(“main.html”, main);