wordpress 3.0 twentyten, no class for current page highlight

<div class="menu-header" multilinks-noscroll="true">
<ul class="menu" id="menu-perso" multilinks-noscroll="true">
  <li class="menu-item menu-item-type-custom menu-item-53" id="menu-item-53" multilinks-noscroll="true">
    <a href="/" multilinks-noscroll="true">Accueil</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-51" id="menu-item-51" multilinks-noscroll="true">
    <a href="histoire" multilinks-noscroll="true">Histoire</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-50" id="menu-item-50" multilinks-noscroll="true">
    <a href="expertise-1" multilinks-noscroll="true">Expertise 1</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-49" id="menu-item-49" multilinks-noscroll="true">
    <a href="contestation-1" multilinks-noscroll="true">Contestation 1</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-48" id="menu-item-48" multilinks-noscroll="true">
    <a href="expertise-2" multilinks-noscroll="true">Expertise 2</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-47" id="menu-item-47" multilinks-noscroll="true">
    <a href="contestation-2" multilinks-noscroll="true">Contestation 2</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-46" id="menu-item-46" multilinks-noscroll="true">
    <a href="demarche" multilinks-noscroll="true">Démarche</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-43" id="menu-item-43" multilinks-noscroll="true">
    <a href="a-propos" multilinks-noscroll="true">À propos</a>
  </li>

  <li class="menu-item menu-item-type-post_type menu-item-60" id="menu-item-60" multilinks-noscroll="true">
    <a href="contact" multilinks-noscroll="true">Contact</a>
  </li>
</ul></div>