Butona tıklanıldığında pencereyi kapatmak istediğinizden emin misiniz şeklinde bir onay penceresi çıkarır.
Kod:
<!-- TWO STEPS TO INSTALL CONFIRM CLOSE:
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function confirmClose() { alert("You have chosen to close this window"); if (confirm("Are you sure?")) { parent.close(); } else alert("Close cancelled."); { } } // End --> </script> </HEAD>
<!-- STEP TWO: Copy this code into the BODY of your HTML document -->