public void commandAction(Command c, Displayable d) {
        if (c == cmdParse) {
            disp.setCurrent(loadingDialog);
            Thread th = new Thread(this);
            th.start();
        }

        if (c == cmdinfo) {
            //form.append("Informations Voyage: \n");
            form.append(showAnnonce(listeannonces.getSelectedIndex()));
            // if(c == List.SELECT_COMMAND){
            //System.out.println("index :"+ lst.getSelectedIndex());
            //}
            disp.setCurrent(form);
        }

        if (c == cmdBack) {
            form.deleteAll();
            disp.setCurrent(listeannonces);
        }

    }