Problems with linking button to URL inside movie clip

Hi guys, I’m having some problems trying to get a button to link to a URL from within a tweening movie clip on the main timeline. Basically I am tweening scrolling credits and wish for each credit to link to a URL when clicked. I’ve used this code inside the movie clip for each button:

btnLocust.addEventListener(MouseEvent.CLICK, locustFunction);

function locustFunction(evt:MouseEvent):void {
    navigateToURL(new URLRequest("http://www.fat-pie.com/locust/"), "_blank");
}

This code didn’t work, so I tried the following on the main timeline:

creds.btnLocust.addEventListener(MouseEvent.CLICK, locustFunction);

function locustFunction(evt:MouseEvent):void {
    navigateToURL(new URLRequest("http://www.fat-pie.com/locust/"), "_blank");
}

“creds” being the instance name for the movie clip. This didn’t work either and it’s left me clueless as I’m a total amateur at actionscript 3. Anyways, I hope you can steer me in the right direction :slight_smile:

Thanks in advance!