function banner(opcao)
{
  if (opcao == 0)
    { return ('<div align="center"><script type="text/javascript">google_ad_client = "pub-9730978583852783"; google_ad_width = 468; google_ad_height = 60; google_ad_format = "468x60_as"; google_ad_type = "text_image"; google_ad_channel = "";</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script></div>') }
  else if (opcao == 1)
    { return ('<a href="http://www.doubleage.com.br" target="_blank"><img border="0" src="/images/banner_double_agepq.gif"></a>') }
  else if (opcao == 2)
    { return ('<script type="text/javascript">google_ad_client = "pub-9730978583852783"; google_ad_width = 109; google_ad_height = 240; google_ad_format = "120x240_as"; google_ad_type = "text_image"; google_ad_channel = "";</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>') }
  else if (opcao == 3)
    { return ('') }
  else if (opcao == 4)
    { return ('') }
}