Hi all! In tough times, the tough start popping. I'd like to add an exit pop-up when a visitor - already in the shopping cart - decides to abandon ship. I'm looking at various javascripts to do this. My question is where do I place the code? Also, I don't want it to pop when someone just hits the backspace key, just when someone closes the window once they've begun the checkout process.

And if you have a javascript you like for this, I'm all ears. Thank you!