void ConnectionWindow::createAccount()
{
    //Creer un nouveau compte
    RegisterWindow *registerW = new RegisterWindow();
    registerW->setWindowTitle("Registration");
    registerW->setWindowModality(Qt::ApplicationModal);
    registerW->show();
}
void MainWindow::createDialog2()
{
    RegisterWindow *regdialog = new RegisterWindow;
    regdialog->show();

}