I have the following code

<% using(Ajax.BeginForm("UpdatePassword", new AjaxOptions{UpdateTargetId="Password"})) { %>
<div id="Password">
           <table>
           <tr>
           <td>New password</td><td><%=Html.Password("newPassword") %></td>
           </tr>
           <tr>
           <td>Confirm new password</td> <td><%=Html.Password("confirmPassword")%><%= Html.ValidationMessage("confirmPassword") %>
           </td>
           </tr>
           </table>

<% } %>

Can someone help me how to proceed to validating that the confirmPassword is equal the new password, and if not the message is displayed in the html.validationMessage()...