private Client rechercherClient(int numero){
		System.out.println("ModeleLocations::rechercherClient()") ;
		Client client = null ;
		int i = 0 ;
		while(i < this.clients.size() && client == null){
			if(this.clients.get(i).getNumero() == numero){
				client = this.clients.get(i) ;
			}
			else {
				i += 1 ;
			}
		}
		return client ;
	}