Close a window after suitelet executes

I am creating a suitelet to run in a pop-up window.

I can open the pop-up from an inline HTML button using

<script type="text/javascript"> window.open(suitlet url); </script>.

suitelet runs and uploads the file as needed, but how to close the window.

1 - can a suitelet access the window object,  and do a window.close()?

2-  is the only way via

   response.write('<script type="text/javascript"> window.close();</script>');