function initAccordion() {
	var togglers = $$('dt.accordion');
	var stretchers = $$('dd.accordion');
	var accordion = new Accordion(togglers, stretchers, {
		display:0,
		opacity: false,
		alwaysHide: true,
		transition: Fx.Transitions.Bounce.easeOut,
		duration: 1250,
		onActive: function(toggler, element){
			toggler.setStyle('background-image', 'url(./img/moins.gif)');
		},
		onBackground: function(toggler, element){
			toggler.setStyle('background-image', 'url(./img/plus.gif)');
		}
	}, $('accordion'));
}