As a continuation of the earlier section where we have seen alert box, we will see in section briefly about confirm box and prompt box.The confirm box is one that pops up with two buttons namely OK and Cancel. This box namely Confirm box is used to verify from the user for acceptance. If the user accepts then the user presses the Ok button and there by the confirm box returns with a value true and if the user rejects then the user presses the cancel button and there by the confirm box returns false value.