var myAccordion;

window.addEvent('domready', function() {								
	//create our Accordion instance
	myAccordion = new Accordion($('accordion'), 'h3.toggler', 'div.elemento', {
		opacity: true,
		duration: 700,
		onActive: function(toggler, elemento){
			//toggler.setStyle('color', '#ff0000');
			toggler.addClass('selected');
		},
		onBackground: function(toggler, elemento){
			//toggler.setStyle('color', '#0000ff');
			toggler.removeClass('selected');
		}
	});	
});

function display(index) {
  if (myAccordion) { // IS THE accordion VARIABLE ASSIGNED/DEFINED?
    myAccordion.display(index); // YES, IT'S DEFINED, SO CALL accordion.display()
  }
  else{
  	alert("no accordion");
  }
}