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How to overcome browser compatibility using javascript?

开发者 https://www.devze.com 2023-03-27 05:03 出处：网络

I have the following javascript in one of my .aspx page window.onbeforeunload = function(evt) { if (typeof evt == \'undefined\')

相关专题：firefox javascript

I have the following javascript in one of my .aspx page

window.onbeforeunload = function(evt) 
{

    if (typeof evt == 'undefined') 
    {
    evt = window.event;
    }
    if (evt) 
    {
    __doPostBack('', 'MyButtonClick');
    }

}

This is ge开发者_高级运维tting fired if i am working with IE but not with crome or firefox 4, but working fine in firefox 3.6.3.

Please Help!

Use JQuery:

<head>
    <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.6.2.min.js" type="text/javascript"></script> 
    <script language="javascript" type="text/javascript">
        $(function () {
            $(window).unload(function () {
                alert('bye');
            });
            alert('hi');
        });
    </script>
</head>