function preloadBannerScroll() {

var option, selected, select;

for (var i = 1; option = document.getElementById("x_" + i); i++) {
	if (option.selected) {
		selected = i;
	}
}

--i;

if (i == 1) {
	return false;
}

if (selected < i) {
	select = selected + 1;
}
else {
	select = 1;
}

if (preloadBannerScrollStop == 1) {
	return false;
}

document.getElementById("x_" + select).selected = true;
document.getElementById("x_" + selected).selected = false;

}

function preloadBannerScrollStop() {

	clearInterval(intervalID);

}

function preloadBannerScrollStart() {

	intervalID = window.setInterval('preloadBannerScroll()', 2000);

}