function vide() {}

function desactiverOnglet(nom, sequence) {
  $j('a#lien-' + nom).addClass('onglet-' + sequence).removeClass('onglet-' + sequence + '-actif');
  $j('div#onglet-' + nom).hide('fast');
}

function activerOnglet(nom, sequence) {
  $j('a#lien-' + nom).addClass('onglet-' + sequence + '-actif').removeClass('onglet-' + sequence);
  $j('div#onglet-' + nom).show('fast');
}