How to question with flash and frames

hey there I’ve been strugguling to get this work but its just not working.

I have frameset site where on top will be flash animation with menu and bottom will load all the content and I am trying to set buttons that would load content in my bottom frame: the way I have now my content loads as _blank.

here is my AS for my button:

  getURL("content.htm", "_botframe");

Anyidea what I am doing wrong??