Как выполнить проверку Jquery в пароле и подтвердить пароль?

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

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<script type="text/javascript">
        $(document).ready(function() {
            $("#change").validate({
                rules: {
                    <%=txtCurrentPWD.UniqueID %>:
                    {
                        required: true
                    },
                    <%=txtNewPWD.UniqueID %>:
                    {
                        required: true
                    },
                    txtPasswordConfirm:
                    {
                        required: true,
                        equalTo: "#txtNewPWD"
                    }
                }, messages: {
                    <%=txtCurrentPWD.UniqueID %>:
                    {
                        required: "* Please Enter Current Password *"
                    },
                    txtNewPWD.UniqueID:
                    {
                        required: "* Please Enter New Password *"
                    }

               }
            });
        });
</script>

    <table width="100%" border="0" cellpadding="0" cellspacing="0" style="float:left;">
        <tr>
            <td>
                <table width="100%" border="0" cellpadding="0" cellspacing="0">
                    <tr>
                        <td>
                        </td>
                    </tr>
                    <tr>
                        <td valign="top">
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
        <tr>
            <td>
                <table width="100%" border="0" cellpadding="0" cellspacing="0">
                    <tr>
                        <td>
                            <h4>
                                My Password</h4>
                        </td>
                    </tr>
                    <tr>
                        <td class="box_border">
                            <table width="100%" border="0" cellspacing="12">
                                <tr>
                                    <td width="36%" align="right" class="form_txt">
                                        Current Password:</td>
                                    <td width="64%" align="left">
                                        <asp:TextBox ID="txtCurrentPWD" runat="server" CssClass="textfield"

                                            TextMode="Password"></asp:TextBox>
                                    </td>
                                </tr>
                                <tr>
                                    <td align="right" class="form_txt">
                                        New Password:</td>
                                    <td align="left">
                                        <asp:TextBox ID="txtNewPWD" runat="server" CssClass="textfield"

                                            TextMode="Password"></asp:TextBox>
                                    </td>
                                </tr>
                                <tr>
                                    <td align="right" class="form_txt">
                                        Password Confirmation:</td>
                                    <td align="left">
                                        <asp:TextBox ID="txtPasswordConfirm" runat="server" CssClass="textfield"

                                            TextMode="Password"></asp:TextBox></td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
        <tr>
            <td style="height:40px;">
                &nbsp;</td>
        </tr>
        <tr>
            <td>
                <table width="100%" border="0">
                    <tr>
                        <td width="50%">
                            <a href="Index.aspx">
                            <img src="images/but_back.jpg" width="80" height="27" /></a></td>
                        <td width="50%" align="right">
                            <asp:ImageButton ID="ImgbtnChangePassword" runat="server"

                                ImageUrl="images/but_continue.jpg" width="105" height="27"

                                onclick="ImgbtnChangePassword_Click" />
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>

</asp:Content>

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