function parar(){
	window.clearInterval(tempo);
};
function rightfun(id,widthfotos){
	var el = document.getElementById(id);
	el.scrollLeft += 10;
};
function righton(id){
	tempo = window.setInterval(function(){ rightfun(id); }, 100);
};
function leftfun(id){
	var el = document.getElementById(id);
	el.scrollLeft -= 10;
};
function lefton(id){
	tempo = window.setInterval(function(){ leftfun(id); }, 100);
};