function getBannerImg () {
//   var banners = [ ["1.jpg"], ["3.jpg", "http://yandex.ru"], ["5.jpg"], ["832.jpg"], ["8.jpg"] ];
  var banners = [ ["1.jpg"], ["3.jpg"], ["5.jpg"], ["832.jpg"], ["8.jpg"] ];
  var num = Math.floor ( ( Math.random ( ) * banners.length ));
  return banners[ num ];
}

function displayBanners () {
  if (document.getElementById('bottomBar_banner'))
  {
    var div = document.getElementById('bottomBar_banner');
    var banner = getBannerImg ();
    var banner_path = banner [0];
    var banner_link = "";
    
    if (banner.length > 1) {
      banner_link = banner [1];
      banner_html = "<a href='" + banner_link + "'><img src='/st/img/banners/" + banner_path + "' id='bannersIMG' alt='' title='' border='0' ></a>";
    }
    else {
      banner_html = "<img src='/st/img/banners/" + banner_path + "' id='bannersIMG' alt='' title='' >";
    }
    
    div.innerHTML = banner_html;
  }
}