Alert/Prevent Users From closing the browser

Here's a simple script that works on both IE and Mozilla and displays a confirmation box before closing the browser. You can use this script to detect if an activity is on and alert users about the same, before they close the browser.


<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

    <script type="text/javascript"> 

        window.onbeforeunload = function(e) {

            e = e || window.event;

            e.returnValue = "Your message here";

        };

    </script>

</head>

<body>

    <form id="form1" runat="server">

    <div>

 

    </div>

    </form>

</body>

</html>



You can use the same script on ASP.NET pages too

1 comment:

  1. Sandeep AparajitJanuary 19, 2009 at 11:31 PM

    The pop-up is shown even if you navigate to other page of your own website. I wanted a solution wherein the user will be altered ONLY if he is closing the Browser window. Can you pls provide any pointers?

    Sandeep
    http://sandeep-aparajit.blogspot.com

    ReplyDelete