<% using (Ajax.BeginForm("Refresh", null,
                   new {userId=Model.UserId},
                   new AjaxOptions { UpdateTargetId = "UserForm", LoadingElementId = "RefreshingDiv" },
                   null))
               {
            %>

                    <button type="submit">
                        <img src="/zsys/img/icons/refresh.png" alt="Refresh" />
                        Refresh
                    </button>

            <% } %>

<script src="../../scripts/jquery-1.3.2.min.js" type="text/javascript"></script>

    <script type="text/javascript">
        $(document).ready(function() {
            setInterval("$('#RefreshFormButton').click()", 300000);
        });
    </script>

<script type="text/javascript">
    $(document).ready(function() {
        setInterval("$('#RefreshFormButton').click()", 300000);
    });
</script>