alauneactu=1;
function swapalaune(id){
    idoldbigbox='alaune'+alauneactu;
    idnewbigbox='alaune'+id;
    idoldsmallbox='alauneb'+alauneactu;
    idnewsmallbox='alauneb'+id;

    var oldbigbox = window.document.getElementById(idoldbigbox);
    if (oldbigbox) {
      oldbigbox.style.display='none';
    }

    var newbigbox = window.document.getElementById(idnewbigbox);
    if (newbigbox) {
      newbigbox.style.display='block';
    }

    var oldsmallbox = window.document.getElementById(idoldsmallbox);
    if (oldsmallbox) {
      if (alauneactu==1){
        oldsmallbox.className = 'alaune-bloc-init-nosel';
      } else {
        oldsmallbox.className = 'alaune-bloc-nosel';
      }
    }

    var newsmallbox = window.document.getElementById(idnewsmallbox);
    if (newsmallbox) {
      if (id==1){
        newsmallbox.className = 'alaune-bloc-init-sel';
      } else {
        newsmallbox.className = 'alaune-bloc-sel';
      }
    }

    alauneactu=id;
}