var amazonTopics = new Array(6);
amazonTopics[0] = "bicycling&mode=books";
amazonTopics[1] = "Lance%20Armstrong&mode=books";
amazonTopics[2] = "Tour%20De%20France%20Bicycle&mode=books";
amazonTopics[3] = "Colorado%20Bicycle&mode=books";
amazonTopics[4] = "bicycling&mode=magazines";
amazonTopics[5] = "Colorado%20Bicycle&mode=books";

function get_random(maxNum)
{
  if (Math.random && Math.round)
  {
    var ranNum= Math.round(Math.random()*(maxNum-1));
    ranNum+=1;
    return ranNum;
  }
  else
  {
  today= new Date();
  hours= today.getHours();
  mins=   today.getMinutes();
  secn=  today.getSeconds();
  if (hours==19)
   hours=18;
  var ranNum= (((hours+1)*(mins+1)*secn)%maxNum)+1;
  return ranNum;
  }
}

function getAmazonTopic(aNumber)
{
  var topicString = "<script src='http://rcm.amazon.com/e/cm?t=coloradobicyc-20&l=st1&search=";
  topicString = topicString + amazonTopics[aNumber] + "&p=13&o=1&lt1=_blank' type='text/JavaScript'></script>";
  return topicString;
}

var choose_one= get_random(6);  
choose_one--;

amazonURL = "http://www.amazon.com/exec/obidos/redirect-home/coloradobicyc-20";
reiURL ="http://click.linksynergy.com/fs-bin/click?id=n1FOSVyEArU&offerid=20594.10000108&type=4&subid=0";

var amazonPic1 =  WebsiteTop + "advertisements/amazonBanner0.gif";
var amazonPic2 = WebsiteTop + "advertisements/amazonBanner1.gif";

var reiPic1 ="http://gallery.rei.com/graphics/affiliates/468x60_APbike.gif";

var aurl= new Array(6);
aurl[0]=getAmazonTopic(0);
aurl[1]=getAmazonTopic(1);
aurl[2]=getAmazonTopic(2);
aurl[3]=getAmazonTopic(3);
aurl[4]=getAmazonTopic(4);
aurl[5]=getAmazonTopic(5);


function write_banner_link()
{

  //document.write("<CENTER>"+aurl[choose_one] + "</CENTER>");
}

//write_banner_link();