var max=5;
    var thisBanner=1;
    var banner=new MakeBannerArray(max);

    function MakeBannerArray(n)
        {
            this.length=n;
            for (var i=1; i<=n;i++)
                {
                    this[i]="";
                }
            return this;
        }
            banner[1]='<a href="http://alamoturbochargers.com/usHome.html"><img src="images/AlamoTurbocharger.jpg" width="200" height="61" border="0" alt="Alamo Turbocharger Services, Inc."></a>';
            banner[2]='<a href="http://www.alloypolishing.com/" target="_blank"><img src="images/SponsorAlloy.jpg" width="200" height="91" border="0" alt="Alloy Polishing Company"></a>';
            banner[3]='<a href="http://tdstires.net/" target="_blank"><img src="images/TDStires.jpg" width="200" height="59" border="0" alt="TDS Tire Distribution Systems"></a>';
            banner[4]='<img src="images/GearboxLogoWeb.gif" width="135" height="120" border="0" alt="The Gear Box">';
            banner[5]='<img src="images/AMERICOOL.jpg" width="200" height="61" border="0" alt="Americool Heating and Air Conditioning">';
   

    function rand(n)
      {
      rnum=Math.floor(n*Math.random())+1;
      return rnum;
      } 

            function setBanner()
      {
      thisBanner=rand(max);
      }