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LinkButton inside UpdatePanel not executing onClick javascript

Posted By:      Posted Date: October 12, 2010    Points: 0   Category :ASP.Net


So, I have a MasterPage, in which I have an ImageButton and an UpdatePanel. Inside the UpdatePanel I have a LinkButton.

<asp:ImageButton ID="imgPdf" runat="server" ImageUrl="~/Images/pdf.png" OnClick="LnkRelease1_Click" ToolTip="Document1.pdf" Width="31px" />

<asp:UpdatePanel ID="UpdatePanel9" runat="server">                                                                                    

<asp:LinkButton ID="LnkRelease1" runat="server" OnClick="LnkRelease1_Click" ToolTip="Document1.pdf" Font-Underline="false">View Pdf</asp:LinkButton>



As you can see, both components are asociated to the same OnClick event, which should open said PDF document in a new window
using javascript (Code Behind of the MasterPage):

protected void LnkRelease1_Click(object sender, EventArgs e)
     try {   if ((((System.Web.UI.WebControls.WebControl)(sender))).ToolTip != "") { string script = @"

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