function changer(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;
		
	  case 4: 
         new Ajax.Updater('contenu','cont04.htm',{method: 'get'});
         break;
		 
	  case 5: 
         new Ajax.Updater('contenu','cont05.htm',{method: 'get'});
         break;

	case 6: 
         new Ajax.Updater('contenu','accueil.html',{method: 'get'});
         break;
		 
	case 7: 
         new Ajax.Updater('contenu','contact.html',{method: 'get'});
         break;
		 
	case 8: 
         new Ajax.Updater('contenu','qui.html',{method: 'get'});
         break;
                                 
   }

}