window.addEvent('domready', function() {

	//create our Accordion instance
	new Accordion($('accordeon'), 'div.t1', 'div.t2', {
		opacity: false,
		duration: 100,
		alwaysHide: true,
		onActive: function(toggler, element){
			var img = toggler.getStyle('backgroundImage');
			img = img.replace('_dicht', '_open');
			toggler.setStyle('backgroundImage', img);
		},
		onBackground: function(toggler, element){
			var img = toggler.getStyle('backgroundImage');
			img = img.replace('_open', '_dicht');
			toggler.setStyle('backgroundImage', img);
		}
	});
});