<!--
function getLayer(nome){
	var olayer;
	if (document.layers)
		olayer = document.layers[nome];

	if (document.all)
		olayer = document.all[nome];

	if (!document.all && document.getElementById )
		olayer = document.getElementById(nome);

	return olayer;
}

function getTopLayer(nome){
	var olayer;
	if (top.document.layers)
		olayer = top.document.layers[nome];

	if (top.document.all)
		olayer = top.document.all[nome];

	if (!top.document.all && top.document.getElementById )
		olayer = top.document.getElementById(nome);
	
	if(olayer == null){
		alert('Layer nulo!');
		return null;
	}
	
	return olayer;
}
-->