Error when i calling jquery in master page
<p>I have calender datetimepicker jquery.
when I am calling this in simple aspx page then its working fine but when i am calling in the page where master page attach then its not working.</p>

<p>Here's the code that I am using:</p>

<pre><code>&lt;%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default11.aspx.cs"
         Inherits="Default11" %&gt;

&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
                      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
&lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head runat="server"&gt;
    &lt;link href="ui.all.css" rel="stylesheet" type="text/css" /&gt;
    &lt;link href="demos.css" rel="stylesheet" type="text/css" /&gt;
    &lt;script src="jquery-1.3.2.js" type="text/javascript"&gt;&lt;/script&gt;
    &lt;script src="ui.datepicker.js" type="text/javascript"&gt;&lt;/script&gt;
    &lt;script src="ui.core.js" type="text/javascript"&gt;&lt;/script&gt;
    &lt;title&gt;Untitled Page&lt;/title&gt;
  &lt;/head&gt;

  &lt;script type="text/javascript"&gt;
$(function() {
 $("#txt").datepicker();
});
  &lt;/script&gt;
  &lt;body&gt;
    &lt;form id="form1" runat="server"&gt;
      &lt;div&gt;
        &lt;asp:TextBox ID="txt" runat="server"&gt;&lt;/asp:TextBox&gt;
      &lt;/div&gt;
    &lt;/form&gt;
  &lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>That is working fine.</p>

<p>But when I am calling like this then its not showing calender</p>

<pre><code>&lt;%@ Page Language="C#" MasterPageFile="~/MasterPage.master" 
         AutoEventWireup="true" CodeFile="CAL.aspx.cs" 
         Inherits="admin_CAL" Title="Untitled Page" %&gt;
&lt;asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"&gt;
&lt;/asp:Content&gt;
&lt;asp:Content ID="Content2" ContentPlaceHolderID="CPHMain" Runat="Server"&gt;
  &lt;link href="ui.all.css" rel="stylesheet" type="text/css" /&gt;
  &lt;link href="demos.css" rel="stylesheet" type="text/css" /&gt;
  &lt;script src="jquery-1.3.2.js" type="text/javascript"&gt;&lt;/script&gt;
  &lt;script src="ui.datepicker.js" type="text/javascript"&gt;&lt;/script&gt;
  &lt;script src="ui.core.js" type="text/javascript"&gt;&lt;/script&gt;
  &lt;script type="text/javascript"&gt;
    $(function() {
 $("#TextBox1").datepicker();
  });
  &lt;/script&gt;
  &lt;asp:TextBox ID="TextBox1" runat="server"&gt;&lt;/asp:TextBox&gt;
&lt;/asp:Content&gt;
</code></pre>
