window.addEvent('domready', function(){
	slider ();
});

function slider (){
	var child = $$('#slide_box').getChildren();
	//var a =3;
	child.each(function(e){
		a=e.length;
	});
	var i=1;
	var len;	
	var scroll = new Fx.Scroll('slide_box', {wait: false,duration: 1500,transition: Fx.Transitions.Sine.easeInOut});	
	
	$('arr_left').addEvents({	
		'click': function(event){
			event.stop();
			//event = new Event(event).stop();
			if((i!=1)){
				i--;
				len=i;
			} else {
				len=1;
			}
			scroll.toElement('pagina_'+len);	
		}			
	});

	$('arr_right').addEvents({
		'click': function(event){
			event.stop();
			//event = new Event(event).stop();
			if(i<3){
				i++;
				len=i;
			} else {
				len=3;
			}
			scroll.toElement($('pagina_'+len));
		}
	});
} 



/*

	$('arr_left').addEvent({	
		'click': function(event){
			event = new Event(event).stop();
			var len;
			if((i!=1)){
				i--;
				len=i;
			} else {
				len=1;
			}	
			scroll.toElement('pagina_'+len);				
		}			
	});

	$('arr_right').addEvent({
		'click': function(event){
			event = new Event(event).stop();
			var len2;
			if(i!=a){
				i++;
				len2=i;
			} else {
				len2=a;
			}
			scroll.toElement('pagina_'+len2);
}
	});



*/