function inpublic (url) {
  blankWin = window.open('http://www.inpublic.com.br','_blank','menubar=yes,toolbar=yes,location=yes,directories=yes,fullscreen=no,titlebar=yes,hotkeys=yes,status=yes,scrollbars=yes,resizable=yes');
}
function bgInicial(){
document.getElementById("principal").className = "tabelaInicio";
}
function bgAp(){
document.getElementById("principal").className = "tabelaAp";
}
function bgGaragem(){
document.getElementById("principal").className = "tabelaGaragem";
}
function bgNormal(){
document.getElementById("principal").className = "tabelaComeco";
}
function bgLocal(){
document.getElementById("principal").className = "tabelaGaragem";
}