Slider.Elements = new Class({
	
	Extends: Slider,
	
		options: {
			property: 'height',
			unit: 'px',
			onChange: function(step){
				this.elements.setStyle(this.options.property, step + this.options.unit);
			}
		},
	
	initialize: function(element, knob, elements, options){
		this.elements = $$(elements);
		this.parent(element, knob, options);
	}
	
});