Sélection de Contenu

• exprimer des contenus ou des ressources alternatives
• exprimer les conditions dans lesquelles chaque alternative doit être exploitée

<sel:select>
  <sel:when sel:expr="screen-width &gt; 400 and available-colors &gt; 4">
    <img alt="Many people had to be evacuated." src="imagebig"/>
  </sel:when>
  <sel:when sel:expr="screen-width &gt; 100 and available-colors &gt; 4">
    <img alt="Many people had to be evacuated." src="imagesmall"/>
  </sel:when>
  <sel:otherwise>
    <p>Many people had to be evacuated.</p>
  </sel:otherwise>
</sel:select>