Help with a close window script button

Hi guys, 

Im using a button at the end of a course to close the window or close the course, however, is not working on the platform I'm using, I already try by adding the interaction--Click--close the course, but nothing.

now I just added the script 

function cerrarCurso() {
window.close();
if (window.self !== window.top) {
window.parent.close();
}
}

document.getElementById('Botón_46').addEventListener('click', cerrarCurso);

And still nothing, it does not close with the button, I have to close the window manually.

I'm using the recent Captivate (vs12)

Thanks!