document.getElementById("banners2").innerHTML = document.getElementById("banners1").innerHTML;

function moverBanners() {
	mover("banners2");
	mover("banners1");
}

var tempoDoIntervalo = 20;

var intervalo = setInterval("moverBanners()", tempoDoIntervalo);

function iniciar() {
	intervalo = setInterval("moverBanners()", tempoDoIntervalo);
}

function parar() {
	clearInterval(intervalo);
}