Any one Resolve This?I Have UpdatePanel and Timer.inside Update Panel is a Textarea......

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
              <ContentTemplate>
                  <asp:Timer ID="Timer1" runat="server" Interval="10000" OnTick="Timer1_Tick">
                  </asp:Timer>



<textarea id="TextArea_Body" runat="server" readonly="readonly" clientidmode="Static" ></textarea>
 </ContentTemplate>
            </asp:UpdatePanel>

$(document).ready(function () {
            $('textarea').mouseenter(function () {
                alert('');


            });

        });