AJAX :: Set Modal Popup At Page Unload?

Jan 25, 2011

I have ajax modal popup for Questionnaire for my website and i want to show it on when user leaving the website.

it is working well with page load event. but i want to call it at the time when user want to close website page.

i have tried with page_unload and dispose event but the page was closed directlly without displaying the popup.

Code:

<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
mdl1.Show()
'chkbox1.Attributes.Add("onclick", "checkBoxListOnClick(this);")
End Sub

[Code]....

dispaly above modal popup on leaving of the website?

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