Opening pop up window within a container

Hi, i have a small problem. i followed the centered pop up window tutorial and it worked. but when that page was placed inside a container, the pop ups didn’t work and i got an error message. so my current set up is, i have my main movie, and i have a container within that movie that opens up the page with the links for the pop up. how do i get them to work? please help.

the instance name for the container is “contents”

heres the code:

btn_1.onRelease = function() {
getURL(“javascript:Launch('http://www.website.com/something.html, 400, 300)”);
};