// JavaScript Document
function divContato(arg) {
	var acao = arg;
	if (acao=='o') {
		document.getElementById('boxmascarafundo').style.visibility='visible';
		document.getElementById('boxbotaoabrefecha').style.visibility='visible';
		document.getElementById('boxcontato').style.visibility='visible';				
	}
	if (acao=='c') {
		document.getElementById('boxmascarafundo').style.visibility='hidden';
		document.getElementById('boxbotaoabrefecha').style.visibility='hidden';
		document.getElementById('boxcontato').style.visibility='hidden';				
	}
}