$(document).ready(function(){
	var moving = false;
	$('#setas img').css('cursor','pointer').click(function(){
		if (!moving) { 
			var pos = $('#wrap_destaque').position();
			pos = pos.left;
			
			var maximo = $('#wrap_destaque .caixa').size();
			maximo = (((maximo/3)-1)*540)*-1;
		
			if($(this).index() == 1){
				if(pos > maximo){
					moving = true;
					$('#wrap_destaque').animate({
						left:'-=540px'
					},function(){
						moving = false;
					});
				}
			} else {
				if(pos < 0){	
					moving = true;			
					$('#wrap_destaque').animate({
						left:'+=540px'
					},function(){
						moving = false;
					});
				}
			}
		}
		
	})
})