Zend FR

<?php
class forms_AjouterMembreForm extends Zend_Form 
{ 
    public function __construct($options = null) 
    { 
        parent::__construct($options);
        $this->setName('ajoutermembre');
        $this->addElementPrefixPath('decorators', 'decorators/', 'decorator');
        
        
        $pseudo = new Zend_Form_Element_Text('pseudo');
        $pseudo->setLabel('Utilisateur')
               ->setRequired(true)
               ->addValidator('NotEmpty')
               ->addDecorator('HtmlTag', array('tag' => 'p'));

        $password = new Zend_Form_Element_Password('password');
        $password->addDecorator(new decorators_BulleAide())
                 ->setDescription('bidule')
                 ->setLabel('Mot de passe')
                 ->setRequired(true)
                 ->addValidator('NotEmpty')
                 ->addDecorator('HtmlTag', array('tag' => 'p'));
    
                 
        $password_confirmation = new Zend_Form_Element_Password('password_confirmation');
        $password_confirmation->addDecorator('HtmlTag', array('tag' => 'p'))
                              ->setLabel('Confirmation')
        //Validateur defini dans /models/validateurs/ValeurEgale.php
            ->addValidator(new validateurs_ValeurEgale($_POST['password']));
           
        $submit = new Zend_Form_Element_Submit('submit');
        $submit->setLabel('Valider l\'inscription');
        
        $this->addElements(array($pseudo,$password,$password_confirmation,$submit));
        
    } 
}
?>

<form name="ajoutermembre" id="ajoutermembre" enctype="application/x-www-form-urlencoded" action="" method="post"><dl class="zend_form">
<dt><label for="pseudo" class="required">Utilisateur</label></dt>
<p>
<input type="text" name="pseudo" id="pseudo" value=""></p>
<dt><label for="password" class="required">Mot de passe</label></dt>

<p>
<input type="password" name="password" id="password" value=""></p><div class="aide">bidule</div>
<dt><label for="password_confirmation" class="optional">Confirmation</label></dt>
<p>
<input type="password" name="password_confirmation" id="password_confirmation" value=""></p>
<dt></dt><dd>
<input type="submit" name="submit" id="submit" value="Valider l'inscription"></dd></dl></form>

<?php
class decorators_BulleAide extends Zend_Form_Decorator_Abstract
{    
    public function preparerAide()
    {
        $element = $this->getElement();
        $desc    = $element->getDescription();
        return '<div class="aide">' . $desc . '</div>';
    }
    public function render($content)
    {
        $element = $this->getElement();
        $aide      = $this->preparerAide();

        $output = $aide;
         return $content . $output;              
    }

}