var images =new Array();
var numImages = 4;

  images[0]=new Image();
  images[0].src="CSS/images/image1.jpg";
  images[1]=new Image();
  images[1].src="CSS/images/image2.jpg";
  images[2]=new Image();
  images[2].src="CSS/images/image3.jpg";
  images[3]=new Image();
  images[3].src="CSS/images/image4.jpg";


for (i=0; i<numImages; i++)
{
  images[i]=new Image();
  images[i].src="CSS/images/image"+(i+1)+".jpg";

}
var curImage=0;

function swapPicture()
{
  if(document.images)
  {
    var nextImage=curImage+1;
    if (nextImage>=numImages)
      nextImage=0;
    if (images[nextImage] && images[nextImage].complete)
    {
      var target=0;
      if (document.images.myImage)
        target=document.images.myImage;
      if (document.all && document.getElementById("myImage"))
        target=document.getElementById("myImage");
  
      // make sure target is valid.  It might not be valid
      //   if the page has not finished loading
      if (target)
      {
        target.src= images[nextImage].src;
        curImage=nextImage;
      }

      setTimeout("swapPicture()", 5000);

    }
    else
    {
      setTimeout("swapPicture()", 500);
    }
  }
}
setTimeout("swapPicture()", 5000);