Update Progress should be on screen or shown unless time

I am using timer_Tick with update panel and also updateprogress

By the help of timer_tick I am able to execute function till 40 second(according to my time).My problem is Unless time_tick event is in progress my update progress should be shown .Right now it get disappeared

here is my Pseudo code

<cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">

</cc1:ToolkitScriptManager>

<asp:Timer runat="server" id="timer" Interval="5000" OnTick="timer_Tick">

</asp:Timer>

<asp:UpdatePanel runat="server" id="updatepanelmain">

<asp:AsyncPostBackTrigger ControlID="timer" EventName="Tick" />

</triggers>

<asp:UpdateProgress id="up_prgs" runat="server" AssociatedUpdatePanelID="updatepanelmain">

</progresstemplate>

</asp:UpdateProgress>

</contenttemplate>

</asp:UpdatePanel>

Update Progress should be on screen or shown unless time_tick event get stoped

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