var accArrowDwn = 'images/acc_tri.png';
var accArrowUp  = 'images/acc_tri_dwn.png';

/****************************************************************************/
window.addEvent('domready', function() {
	//--ACCORDIAN INST
	var myAccordion = new Accordion($('accordion'), 'h3.toggler', 'div.element', {
		duration: 250,
		display:-1,
		opacity: false, 
		alwaysHide: true/*, 
		
		onActive: function(toggler,element){
         toggler.innerHTML = changeArrow(toggler.innerHTML,accArrowUp);
		},
		onBackground: function(toggler,element) {
         toggler.innerHTML = changeArrow(toggler.innerHTML,accArrowDwn);		
		}*/	
		});
			  					
});
/****************************************************************************/	

function changeArrow(txt,arrow) {

	if (arrow==accArrowDwn) {
	  var pattern = new RegExp(accArrowUp,'g');		
	}else if (arrow==accArrowUp) {
	  var pattern = new RegExp(accArrowDwn,'g');		
	}
	
	var newTxt = txt.replace(pattern,arrow);
		
	return newTxt;

}