Is there any way to create a popup notifcation when a customer leaves the website while there are still items in the cart?

It should contain message like: There are still items in your cart, are you sure you want to leave?

I've tried to search for any extension to realise this, but i couldn't found any.

Got any ideas? Can this be achieved by adding a code onto all pages?

Thanks in advance.

Is there any way to create a popup notification when a customer leaves the website while there are still items in the cart?

It should contain message like: There are still items in your cart, are you sure you want to leave?

I've tried to search for any extension to realise this, but i couldn't found any.

Got any ideas? Can this be achieved by adding a code onto all pages?

Thanks in advance.