noUiSlider.create(slider1, {
	start: 60,

	// Disable animation on value-setting,
	// so the sliders respond immediately.
	animate: false,
	range: {
		min: 50,
		max: 100
	}
});

noUiSlider.create(slider2, {
	start: 80,
	animate: false,
	range: {
		min: 50,
		max: 100
	}
});

slider1.noUiSlider.on('update', function( values, handle ){
	slider1Value.innerHTML = values[handle];
});

slider2.noUiSlider.on('update', function( values, handle ){
	slider2Value.innerHTML = values[handle];
});