window.addEvent('domready', function(){ 
		var increment = 0;
		var periodicalFunction = function() {
			if(increment != maxRightIncrement+520){increment=increment-520;}else{increment = 0;}
			$('myList').set('tween', {}).tween('margin-left', increment);
		}
		var periodicalFunctionVar = periodicalFunction.periodical(3100);
		
	$('setaCima').addEvent('click', function(event) {
		var scrollExample = new Fx.Scroll($('GALERIA'));
		scrollExample.start(0, $('GALERIA').scrollTop - 220);
	});
	
	$('setaBaixo').addEvent('click', function(event) {
		var scrollExample = new Fx.Scroll($('GALERIA'));
		scrollExample.start(0, $('GALERIA').scrollTop + 220);
	});
});