if (document.images)
{
     adImages = new Array (
        "reclame/banner_vanderhoek.jpg",
        "reclame/banner_stenaline.gif",
        "reclame/banner_zweedsleren.png");
        
     adURLs = new Array ( 
        "www.vanderhoek-transporten.nl",
        "www.stenaline.nl/znv",
        "zweedsleren.blogspot.com");

     thisAd = 0;
}

function cycleAds()
{
     if (document.images)
     {
         if (document.adBanner.complete)
         {
            now = new Date()
            numAds = adImages.length;
            idx = now.getSeconds() % numAds;
            thisAd = idx;

            document.adBanner.src = adImages [idx];
         }
     }

     // volgende sponsor om de nSec seconden
     nSec = numAds + 1;
     setTimeout ("cycleAds()", nSec * 1000);
 }

 function gotoAd()
 {
     document.location.href = "http://" + adURLs[thisAd];
 }