window.addEvent('domready', function() {
	
	//create our Accordion instance
    var acc = $$('#accordion');
    acc.each(function(elem) {
	var myAccordion = new Accordion(elem, 'h3.toggler', 'div.element',{
		opacity: false,
		onActive: function(toggler, element){
            var x = parseInt(toggler.id);
            var y = "." + x + "link" ;
			$$(y).setStyle('display','none');


		},
		onBackground: function(toggler, element){
            var x = parseInt(toggler.id);
            var y =  "." + x + "link";
            var z =  x + "ball";
			$$(y).setStyles({
                    background: 'url(_img/btnCirculoDown.png) no-repeat 0 0',
                    display : 'block'
                });
            $(z).setStyle('background', 'url(_img/btnCirculoDown.png) no-repeat 0 0');

		}
	});
});
});