var tab_article= new Array;

function ouvrir_article(n) {
  if (tab_article[n]==0) {
  $$('div#article_' + n).each( function(e) { e.visualEffect('slide_down',{duration:1}) });
  tab_article[n]=1;
  }
  else {
  $$('div#article_' + n).each( function(e) { e.visualEffect('slide_up',{duration:1}) });
  tab_article[n]=0;
  }
}

function OuvrirPopup(page,nom,option) {
  window.open(page,nom,option);
}