Print screen button causing project to advance

I have added some JavaScript to a button in my captivate project using On success > Execute JavaScript > Script Window > window.print()

This works fine to print the screen, however, clicking the button also makes the project advance to the next slide.

Any tips on how to acheive the print screen functionality without advancing the slide would be greatly appreciated. We intend to publish using HTML5 output only.

The majority of elearning projects we work on require a print screen button, it would be a very useful feature were it to be added to Captivate without the need to dabble with JavaScript.

Many thanks in advance.