window.addEvent('domready', function(){
	var mySlider, height = 465;
	mySlider = new Fx.Style('hidden_content', 'height', {duration: 300});

	$('open').addEvent('click', function() {
		$('close').setStyle('display', 'inline');
		this.setStyle('display', 'none');
		mySlider.start(0, height);
	});
	$('close').addEvent('click', function() {
		$('open').setStyle('display', 'inline');
		this.setStyle('display', 'none');
		mySlider.start(height, 0);
	});
});