var handlesSlider4 = document.getElementById('slider-handles4');

noUiSlider.create(handlesSlider4, {
	start: [ 4000, 8000, 12000, 16000 ],
	connect: [false, true, true, false, true],
	range: {
		'min': [  2000 ],
		'max': [ 20000 ]
	}
});