function alteraRodape(opc)
{
	if(opc=="eng")
	{
		parent.document.getElementById('rodapePort').style.display = "none";
		parent.document.getElementById('rodapeEng').style.display = "block";		
	}
	else
	{
		parent.document.getElementById('rodapePort').style.display = "block";
		parent.document.getElementById('rodapeEng').style.display = "none";			
	}
}