How to get error css class in form

Hi,

simple question and I hope that the simple answer. How we achieve the listed class error, if error occurred for a specific attribute?

Default:




	<div class="row">

		<?php echo $form->labelEx($model,'username'); ?>

		<?php echo $form->textArea($model,'username'); ?>

		<?php echo $form->error($model,'username'); ?>

	</div>



New, add "error" to class:




	<div class="row error">

		<?php echo $form->labelEx($model,'username'); ?>

		<?php echo $form->textArea($model,'username'); ?>

		<?php echo $form->error($model,'username'); ?>

	</div>



Thx

just override default class…class="errorMessage" is the default.