function quickEffectProducts() {
	$('upholstery').show();
	$('instructions').hide();
	$('linkUpholstery').toggleClassName('active');
}

onload = function() {
		$('linkUpholstery').onclick = function(event) {
			$('linkUpholstery').removeAttribute ('href');
			$('instructions').hide();
			$('upholstery').show();
			$('linkInstructions').toggleClassName('active');
			$('linkUpholstery').toggleClassName('active');
		}
		$('linkInstructions').onclick = function(event) {
			$('linkInstructions').removeAttribute('href');
			$('upholstery').hide();
			$('instructions').show();
			$('linkUpholstery').toggleClassName('active');
			$('linkInstructions').toggleClassName('active');
		}
}