Hide ASP.Net Validator Validation Message automatically after some seconds in ASP.Net

Here i have hide the RequiredFieldValidator error message after 5 seconds

HTML:

 <form id="form1" runat="server">
    <div>
        Name<asp:TextBox ID="txtName" runat="server" />
        <asp:RequiredFieldValidator ID="rfvName" runat="server" ControlToValidate="txtName"
            Display="Dynamic" ErrorMessage="Please enter the name"></asp:RequiredFieldValidator><br />
        Middle Initial
        <asp:TextBox ID="txtMiddleInitial" runat="server" />
        <asp:Button ID="btnSubmit" runat="server" Text="Submit" />
    </div>
    <script type="text/javascript">
        $(document).ready(function () {
            var seconds = 5;
            setTimeout(function () {
                $("[id*=rfvName]").css("display", "none");
            }, seconds * 1000);
        });
    </script>

 Add it in the Head section

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>