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 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #include "nsIDOMEvent.idl"

 /**

  * The nsIDOMBeforeUnloadEvent interface is the interface for events

  * sent to handlers of the "beforeunload" event. This event is

  * non-standard. Interface derived from Microsoft IE's event

  * implementation.

  *

  * http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/events.asp

  *

  */

 [scriptable, builtinclass, uuid(ee7b8943-440e-4cc3-b25e-c17c8a821d8b)]

 interface nsIDOMBeforeUnloadEvent : nsIDOMEvent

 {

   /**

    * Attribute used to pass back a return value from a beforeunload

    * handler

    */

            attribute DOMString          returnValue;

 };