Javascript help

I am using adobe Classic (2019).  I search the community but I couldn't find a written script that I can copy to my course. Could someone please help me by writing a javascript that will close the course due to inactivity after some seconds while keeping their progress saved and a certain message as a pop up once the course is closed like "you course is closed due to inactivity". I am new to Captivate and have no experience in JS. Course will be published in SCORM 1.2 and SCORM 2004. Please also advise if JS needs to be added to each slide as an advance action or on just one slide and it will work for the whole course.