function changeOnglet (type){
  if(type=='onglet01'){
      if(document.getElementById('containerOnglet01')){
          Div = document.getElementById('containerOnglet01');
          Div.className= "onContainer"; 
          Div = document.getElementById('containerOnglet02');
          Div.className= "offContainer"; 
          A = document.getElementById('onglet01');
          A.className = "onOnglet"; 
          A = document.getElementById('onglet02');
          A.className = "offOnglet"; 
          
      }
  } else if(type=='onglet02'){
      if(document.getElementById('containerOnglet02')){
          Div = document.getElementById('containerOnglet02');
          Div.className= "onContainer"; 
          Div = document.getElementById('containerOnglet01');
          Div.className= "offContainer"; 
          A = document.getElementById('onglet02');
          A.className = "onOnglet"; 
          A = document.getElementById('onglet01');
          A.className = "offOnglet";
      }
   }
}