function fct_contenu(ident){

switch (ident)
   {
      case 1: 
         new Ajax.Updater('contenu','cont01.htm',{method: 'get'});
         break;
      
      case 2: 
         new Ajax.Updater('contenu','cont02.htm',{method: 'get'});
         break;
         
      case 3: 
         new Ajax.Updater('contenu','cont03.htm',{method: 'get'});
         break;
                                 
   }

}