using VirtualKeyboard in content page

I created a masterpage for using VirtualKeyboard. It works fine, but when I am using this in content page it doesn't work.

This is code in masterpage:

    <head runat="server">
        <title></title>
          <link href="css/keyboard.css" rel="stylesheet" />
                <link rel="stylesheet" href="css/demo.css" />
                <script src="script/prototype.js"></script>
                <script src="script/keyboard.js"></script>
        <asp:ContentPlaceHolder ID="head" runat="server">
        </asp:ContentPlaceHolder>
    </head>
    <body>
        <form id="form1" runat="server">
            <div>
                <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                <cc1:VirtualKeyboard ID="VirtualKeyboard1" runat="server" ClientIDMode="AutoID" CssClass="KeyBoard" ForControl="TextBox1" />
            </div>
            <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">

            </asp:ContentPlaceHolder>
        </form>
    </body>

This is code in content page:

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<%@ Register Assembly="SPCS.AspDotNet" Namespace="SPCS.AspDotNet" TagPrefix="cc1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <cc1:VirtualKeyboard ID="VirtualKeyboard1" runat="server" ForControl="TextBox1" />
</asp:Content>

Solution

Please set ClientIDMode="Static" in TextBox because by default it is Inherit so it may generate AutoID and try it

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:TextBox ID="TextBox1" runat="server" ClientIDMode="Static"></asp:TextBox>
    <cc1:VirtualKeyboard ID="VirtualKeyboard1" runat="server" ForControl="TextBox1" />
</asp:Content>