I would like to theme a form, and the div wrapping my text input element prevents me from doing what i want. So i got this right now :
<div class="form-item form-type-textfield form-item-email">
<input type="text" id="edit-email" name="email" value="mail@msn.com" size="20" maxlength="128" class="form-text required">
</div>
</div>