How do I call a function from a .js file from within flash?

I have a javascript file and I’m trying to call a function within the file from within a flash file, but it’s not working. Any ideas? Here is the code from the flash file:

return_mc.onRelease = function():Void{
 getURL("javascript:parent.populateFrame('lead/lead.html')");
};

The .fla is published as a html file and I have the .js file linked with the html file. Any help would be appreciated.

JPearson311