Button to open mc in another swf?

Hi all,
This is what I am trying to do:
I have a button on swf 1 and when clicked I want it to open a mc in swf 2.
I am using a code .as file to do this.
I have everything set up and it works in swf1 (ie on clicking the button an mc is attached to stage) but I want it to open in swf2.
The swf2 needs to be stable by itself as it is a file that is going to be uploaded to a website…
Any ideas?