Ask user before closing the browser - IE and Mozilla

If you would like to ask the user for confirmation before closing the browser , then here's how to do so. You can use this script on an ASP.NET page or a simple HTML page. The code has been tested on IE 7 and Firefox 3+

<head runat="server">

<title></title>

<script type="text/javascript">

    window.onbeforeunload = function() {

        if (window.event)

            window.event.returnValue = 'Thank you for visiting us!';

        else

            return 'Thank you for visiting us!';

    }

</script>

</head>

About The Author

Suprotim Agarwal, Developer Technologies MVP (Microsoft Most Valuable Professional) is the founder and contributor for DevCurry, DotNetCurry and SQLServerCurry. He is the Chief Editor of a Developer Magazine called DNC Magazine. He has also authored two Books - 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook.

Follow him on twitter @suprotimagarwal.

3 comments:

Gautam said...: Hi Dear,

Have You test your written code to ask before close the browser.

your code is executing on every click on button or page load.

Please i would suggest you ,Please test your written code before publish on internet.; November 9, 2009 at 9:01 PM
Suprotim Agarwal said...: Gautam: The code 'has' been tested :) This code has been tested on IE7, Firefox 3 and has been added to the post.; November 9, 2009 at 9:48 PM
preeti said...: Have You test your written code to ask before close the browser.

your code is executing on every click on button or page load.; December 28, 2011 at 2:12 AM