Help with Hybrid Site linkage

I really need help with linking my flash buttons to html pages! I am using dreamweaver mx04 to create my site and flash mx04 for the navigation. I am trying to do a school assignment and what I’m aiming to do is have flash buttons that will open up a html page in the mainframe while the navigation bar is in the menuframe. Help with the actionscripting would be greatly appreciated!!

Currently my knowledge only extends to
on (release) {
getURL (“nameoffile.htm”, _blank)

I have a hunch that it’s something do to with the _blank part, but im not entirely sure. Thanks for your time!