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

	var scroll = new Fx.Scroll('scroll-body', {
			wait: false,
			duration: 300,
			transition: Fx.Transitions.Quad.easeInOut
	});
	
	var elements_to_scroll = new Array("agendas_escolares","agendas_infantil", "cuadernos_tutoria");
	
	var i = 0;

	$('scroll-right').addEvent('click', function(event) {
		event = new Event(event).stop();
		if(i<elements_to_scroll.length-1) {
			scroll.toElement(elements_to_scroll[i+1]);
			i++;
		}
		else {
			scroll.toElement(elements_to_scroll[0]);
			i=0;
		}
	});
	$('scroll-left').addEvent('click', function(event) {
		event = new Event(event).stop();
		if(i==0){
				scroll.toElement(elements_to_scroll[elements_to_scroll.length-1]);
				i=elements_to_scroll.length-1;
		}
		else {
			if(i<elements_to_scroll.length) {
				scroll.toElement(elements_to_scroll[i-1]);
				i--;
			}
			else {
				scroll.toElement(elements_to_scroll[elements_to_scroll.length-1]);
				i=elements_to_scroll.length-1;
			}
		}
	});

});