jQuery addClass example

Change class name on click in jQuery

HTML

<div class="acc_content clearfix">
                                        <form name="contactForm" id="contactForm" class="nobottommargin" action="guarda_pass.php" method="post" >
                                            <div class="col_full" style="color: #898989">
                                                <label style="color: #898989" for="login-form-username">Escribe tu nueva contraseña:</label>
                                                <input type="text" id="password" name="password" value="" class="form-control" required />
                                            </div>
                                            <div class="col_full" style="color: #898989">
                                                <label style="color: #898989" for="login-form-username">Confirma tu nueva contraseña:</label>
                                                <input type="text" id="con_password" name="con_password" value="" class="form-control" required/>
                                            </div>


                                            <div class="col_full nobottommargin">
                                                <button class="button button-3d button-black nomargin" style="background-color: #6fb6e5"  type= "submit"  value="login">Registrar</button>


                                            </div>
                                        </form>
                                          <div id="contactResponse"></div>
                                    </div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

$("#contactForm").submit(function(event) 
            {
                /* stop form from submitting normally */
                event.preventDefault();


                /* get some values from elements on the page: */
                var $form = $( this ),
                $submit = $form.find( 'button[type="submit"]' ),
                password_value = $form.find( 'input[name="password"]' ).val(),
                con_password_value = $form.find( 'input[name="con_password"]' ).val(),
                url = $form.attr('action');

                /* Send the data using post */
                //var posting = $.post( url, { 
                //    password: password_value, 
                //    con_password: con_password_value 
                //});
                
                alert('POST: ' + password_value);

                posting.done(function( data )
                {
                    /* Put the results in a div */
                    $( "#contactResponse" ).html(data);

                    /* Change the button text. */
                    $submit.text('Sent, Thank you');

                    /* Disable the button. */
                    $submit.attr("disabled", true);
                });
            });