var imageData = [
   {
      imageSrc : "img/SRF_PE_1.png",
      imageAlt : "Stone Ranch PE Image 1",
      imageTitle : "Stone Ranch PE Image 1"
   },
   {
      imageSrc : "img/SRF_PE_2.png",
      imageAlt : "Stone Ranch PE Image 2",
      imageTitle : "Stone Ranch PE Image 2"
   },
   {
      imageSrc : "img/SRF_PE_3.png",
      imageAlt : "Stone Ranch PE Image 3",
      imageTitle : "Stone Ranch PE Image 3"
   },
   {
      imageSrc : "img/SRF_PE_4.png",
      imageAlt : "Stone Ranch PE Image 4",
      imageTitle : "Stone Ranch PE Image 4"
   }
];

var imageIndex = 0;

function imageRotateTimer()
{
   //alert("sponsorAd");
   setInterval("rotateImage()", 5000);
}

function rotateImage()
{
   //alert("changeSponsorAd");
   if (imageIndex + 1 >= imageData.length)
   {
      imageIndex = 0;
   }
   else
   {
      imageIndex++;
   }

   if (document.getElementById("image_rotate") != null)
   {
      document.getElementById("image_rotate").src = imageData[imageIndex].imageSrc;
      document.getElementById("image_rotate").alt = imageData[imageIndex].imageAlt;
      document.getElementById("image_rotate").title = imageData[imageIndex].imageTitle;
   }
}

addLoadEvent(imageRotateTimer());