function verScroll(dir, spd, loop) {
	loop = true;
	direction = "up";
	speed = 10;
	scrolltimer = null;

	if (document.layers) {
		var page = eval(document.conteudo);
	}else{
		if (document.getElementById) {
			var page= eval("document.getElementById('conteudo')");
		}else{
			if (document.all) {
				var page = eval(document.all.conteudo);
			}
		}
	}
	direction = dir;
	speed = parseInt(spd);
	var y_pos = parseInt(page.scrollTop);
	if (loop == true) {
		if (direction == "dn") {
			page.scrollTop = (y_pos + (speed));
		} else {
			if (direction == "up") {
				page.scrollTop = (y_pos - (speed));
			}
		}
		scrolltimer = setTimeout("verScroll(direction,speed)", 1);
	}
}

function stopScroll() {
	loop = false;
	clearTimeout(scrolltimer);
}