var delay = 5000;
var noOfImgs = 2;

pic0 = new Image(890,300);
pic0.src = "images/banners/banner_002.png";
pic1 = new Image(890,300);
pic1.src = "images/banners/banner_003.png";

var imgArry = new Array()
   imgArry[0] = "images/banners/banner_002.png";
   imgArry[1] = "images/banners/banner_003.png";

function rotateImage(imgNo)
{
   clearTimeout(timerId);

   if(imgNo == noOfImgs)
   {
      imgNo = 0;
   }
   else
   {
      document.getElementById('image').src = imgArry[imgNo];

      imgNo++;
   }

   var recur_call = "rotateImage('" + imgNo + "')";

   setTimeout(recur_call, delay);
}

var timerId = setTimeout('rotateImage(0)', 1500);