var nonLinearSlider = document.getElementById('slider-non-linear');

noUiSlider.create(nonLinearSlider, {
	start: [ 4000 ],
	range: {
		'min': [  2000 ],
		'30%': [  4000 ],
		'70%': [  8000 ],
		'max': [ 10000 ]
	}
});