function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function exibeCampos(id){
  var objeto = null;
  if (objeto = document.getElementById(id)) {
    if(objeto.style.display != 'none')
      objeto.style.display = 'none';
    else
      objeto.style.display = 'block';
  }
}