var max      = 10;
  var nrImages = 6;
  function makeImages() {
    this[0]     = "../../banners/imagens/banner.gif";
    this[1]     = "../../banners/imagens/banner02.gif";
    this[2]     = "../../banners/imagens/banner03.gif";
    this[3]     = "../../banners/imagens/banner04.gif";
    this[4]     = "../../banners/imagens/banner05.gif";   
    this[5]     = "../../banners/imagens/banner06.gif";
   

    this.length = nrImages;
  }
  function makeLinks() {
    this[0]     = "../../htmls/servicos/feiras.asp";
    this[1]     = "../../htmls/atualidades/atualidades_ini.asp";
    this[2]     = "../../htmls/legislacao/convencoes.asp";
    this[3]     = "../../htmls/associados/associase.asp";
    this[4]     = "../../htmls/contato/contato.asp";
    this[5]     = "../../htmls/sindicato/sindicato_ini.asp";
    
    this.length = nrImages;

  }
  var vetImages = new makeImages();
  var vetLinks  = new makeLinks();
  var escolhido = Math.round(Math.random()*max);
  var espaco    = max / nrImages;
  for(var cont = 1;cont*espaco <= max;cont++) {
    if (escolhido <= (cont*espaco)) {
      document.write("<a href="+vetLinks[cont-1]+" target=_self><img  src="+vetImages[cont-1]+" border=0></a>");
      break;
    }
  }