var bannerAD=new Array();
var adNum=0;
   bannerAD[0]="../images/1.jpg";
   bannerAD[1]="../images/2.jpg";
   bannerAD[2]="../images/3.jpg";
   bannerAD[3]="../images/4.jpg";

function setTransition(){
   if (document.all){
      bannerADrotator.filters.revealTrans.Transition=Math.floor(Math.random()*23);
      bannerADrotator.filters.revealTrans.apply();
   }
}

function playTransition(){
   if (document.all)
      bannerADrotator.filters.revealTrans.play()
}

function nextAd(){
   if(adNum<bannerAD.length-1)adNum++ ;
   else adNum=0;
   setTransition();
   document.getElementById('bannerADrotator').src=bannerAD[adNum];
   playTransition();
   theTimer=setTimeout("nextAd()", 4000);
}

document.write('<img id="bannerADrotator" name="bannerADrotator" width="176" height="229"  style="FILTER: revealTrans(duration=2,transition=20)" align="right" />');

nextAd();