var imageList = new Array;
    imageList[0] = new Image;
    imageList[0].src = "showImages/B1.jpg";
    imageList[1] = new Image;
    imageList[1].src = "showImages/B2.jpg";
    imageList[2] = new Image;
    imageList[2].src = "showImages/B3.jpg";
    imageList[3] = new Image;
    imageList[3].src = "showImages/B4.jpg";
    imageList[4] = new Image;
    imageList[4].src = "showImages/B5.jpg";
    function slideShow(imageNumber) { 
        document.slideShow.src = imageList[imageNumber].src;
        imageNumber += 1;
        if(imageNumber==imageList.length){
             imageNumber=0;
        }
        if (imageNumber < imageList.length) { 
                window.setTimeout("slideShow(" + imageNumber + ")",2000);
        }
     }