pop up auto close after button click event--asp.net

[yongwc2710]

 <script type="text/javascript" src="../js/showModalDialog.js"></script>        

Please assist on this . the pop up windows close automatically after finishing the click event from parent page : <asp:Button ID="btnSold" runat="server" Text="Mark as SOLD" CausesValidation="False" /> vb.net: btnSold.Attributes.Add("onClick", "AdminshowAssignSold();")

[mrwoodo]

Same as #9 Problem with pages .aspx, have added example workaround