adImages = new Array("images/SummitAd3.jpg", "images/yourAd.jpg") 

// adImages = new Array("images/gray-test900.gif", "images/cpdf-ad4.gif", "images/yourAd.jpg") 

// adImages = new Array("images/gray-test900.gif","images/bcad.jpg","images/cpdf-ad4.gif", // "images/yourAd.jpg") 

// adImages = new Array("images/SummitAd2.jpg","images/bcad.jpg","images/yourAd.jpg") 
 

thisAd = 0
imgCt = adImages.length

function rotate() {
   if (document.images) {
       thisAd++
       if (thisAd == imgCt) {
       thisAd = 0
       }
       document.adBanner.src=adImages
       		[thisAd]
       		setTimeout("rotate()", 5 * 1000)
       
    }  
  }