function desce(dir){
	var el = parent.frames[0].document.getElementById('divContainer');
	switch(dir)
	{
		case"Top":
			el.scrollTop += 10;
			break;
		case"Left":
			el.scrollLeft += 10;
			break;
	}
}

function descer(){
	var dir = document.getElementById('dir').value;
	tempo = window.setInterval(function(){ desce(dir); }, 50);
}

function sobe(dir){
	var el = parent.frames[0].document.getElementById('divContainer');
	switch(dir)
	{
		case"Top":
			el.scrollTop -= 10;
			break;
		case"Left":
			el.scrollLeft -= 10;
			break;
	}
}

function subir(){
	var dir = document.getElementById('dir').value;
	tempo = window.setInterval(function(){ sobe(dir); }, 50);
}

function parar(){
	window.clearInterval(tempo);
}