doPostBack then Set focus?

[tqeonline]

I have a textbox that onKeyUp it does a postback... but then I need it to reset the focus to that textbox.

This is what i've tried:

<script type="text/javascript">
        function updatePanelPostback() {
            __doPostBack("<%=upHiddenPostback.ClientID%>", "");
            $get("txtAssignee").focus();
        }
     </script>

The textbox is txtAssignee and it is within an updatepanel.

This is how I can the function:

<asp:TextBox ID="txtAssignee" runat="server" OnKeyUp="javascript:updatePanelPostback();"></asp:TextBox>

Any ideas?

- Matt

"If I must boast, I will boast of the things that show my weakness"

- Windows 2003 Server, 98 SE, XP
- VB.NET, VSTS 2010, ASP.NET, EXCEL VBA, ACCESS, SQL 2008