@FXML protected void BackButton(ActionEvent event){
		switch(operationMode){
		case LauncherSelect:
			listIndex--;
			if(listIndex <= 0)
				listIndex=launchers.size()-1;
			lbLine2.setText(launchers.get(listIndex));
			listIndex=0;
			break;
		case CitySelect:
			listIndex++;
			if(listIndex >= 0)
				listIndex=citys.size()-1;
			lbLine2.setText(citys.get(listIndex));
			listIndex=0;
			break;
		case FlyTimeSelect:
			missileToSend.setFlyTime(missileToSend.getFlyTime() - 1);
			if(missileToSend.getFlyTime()<0) missileToSend.setFlyTime(0);
			lbLine2.setText(missileToSend.getFlyTime()+"");
			break;
		case DamageSelect:
			missileToSend.setDamage(missileToSend.getDamage() - 100);
			if(missileToSend.getDamage()<0) missileToSend.setDamage(0);
			lbLine2.setText(missileToSend.getDamage()+"");
			break;
		case Default:
			break;
		default:
			break;
		}
	}