C# Gridview Countdown timer in javascript

<script>
$(document).ready(function () {

var rows = document.getElementById("<%=dgLiveAuctionBid.ClientID %>").getElementsByTagName("tr");
var message = "";
for (var i = 1; i < rows.length; i++) {
var kkk = GetChildControl(rows[i], "Label2");
var jjj = GetChildControl(rows[i], "defaultCountdown");

var austDay = new Date();
austDay = new Date(2014, 11, 29, 18, 0, 0, 0);
$(jjj).countdown({ until: austDay });
$(kkk).text(austDay.getFullYear());
}
//alert(message);
//return false;
});
//On UpdatePanel Refresh
var prm = Sys.WebForms.PageRequestManager.getInstance();

prm.add_endRequest(function () {

var rows = document.getElementById("<%=dgLiveAuctionBid.ClientID %>").getElementsByTagName("tr");
var message = "";
for (var i = 1; i < rows.length; i++) {
var kkk = GetChildControl(rows[i], "Label2");
var jjj = GetChildControl(rows[i], "defaultCountdown");

var austDay = new Date();
austDay = new Date(2014, 11, 29, 18, 0, 0, 0);
$(jjj).countdown({ until: austDay });
$(kkk).text(austDay.getFullYear());
}
}
);

</script>

<itemtemplate>
<span></span>
<asp:Label ID="lblAuctionDate" runat="server" Font-Bold="true" Text='<%#Bind("OnlineAuctionDate") %>' Visible="True">
<br />
<span>To  </span><br /><asp:Label ID="lblAuctionTime" runat="server" Font-Bold="true" Text='<%#Bind("EndTime") %>'>
 
<br />


<asp:Label ID="Label2" runat="server" Text="20">
<div id="defaultCountdown" runat="server"></div>