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<form id="form1" runat="server"> 
    <asp:ScriptManager ID="ScriptManager1" runat="server"> 
    </asp:ScriptManager> 
    <div> 
        <asp:UpdatePanel ID="UpdatePanel1" runat="server"> 
        <ContentTemplate> 
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> 
            <asp:Button ID="Button1" 
                runat="server" Text="Button" onclick="Button1_Click" /> 
        </ContentTemplate> 
        </asp:UpdatePanel> 
    </div> 
    </form> 
      protected void Button1_Click(object sender, EventArgs e)   
       {   
           ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "", "alert('ÎÒ³öÀ´ÁË');", true);   
       }  
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