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Old September 28th, 2007, 08:01 AM
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Default javascript: null or not an object exception

Hi,
I want to call a web service when a user closes the browser window. On closing the browser window, I get the following error:
  Microsoft JScript runtime error: 'service.SessionSpan' is null or not an object
I have attached the code for reference, please advise.


<HTML>
      <HEAD>
            <script lang="javascript">
            function funcInit()
            {
            var iCallID = 0;
            service.useService("http://localhost/UpdateSessionDetails/SessionSpan.asmx?WSDL", "update");
            iCallID = service.SessionSpan.callService("UpdateSessionTabl e");
            }
            </script>
      </HEAD>
      <body MS_POSITIONING="GridLayout" onbeforeunload="funcInit()">
      <div id="service" style="behavior:url(webservice.htc)"></div>

            <form id="Form1" method="post" runat="server">
                  <asp:LinkButton ID="lbtnSummary" Runat="server">Download Summary.txt</asp:LinkButton>
            </form>
      </body>
</HTML>




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