Triggering a button click from javascript

Question

Let's suppose I have a form with some input fields and a submit button.

If I use the window.onunload, is it possible for me to trigger the submit button before the user leaves the webpage.

Which would be the correct way to implement it.

Answer 1

Something like the following might work:

$(window).unload(function() {
  document.getElementById('YOURBUTTONID').submit();
});