private JSlider getJSliderWordsCount() {
		if (jSliderWordsCount == null) {
			jSliderWordsCount = new JSlider();
			jSliderWordsCount.setMinimum(5000);
			jSliderWordsCount.setMaximum(150000);
			jSliderWordsCount.setValue(50000);
			jSliderWordsCount.addChangeListener(new ChangeListener() {
				@Override
				public void stateChanged(ChangeEvent arg0) {
					jLabelMaxWords.setText("Max words: ("+jSliderWordsCount.getValue()+")");
				}
			});
			jLabelMaxWords.setText("Max words: ("+jSliderWordsCount.getValue()+")");
		}
		return jSliderWordsCount;
	}