Rotate Image Using Javascript

 <script language="javascript" type="text/ecmascript">
        //Declare golobal variable
        var index = 0;
        var dispStatus = "Play";
        var resetDesplay;
        var timeInerval = 2000;

        //Function to set net image from the array of image list
        function SetNextImage() {
            timeInerval = document.getElementById("hdnTimeOut").value;
            var imageArray = document.getElementById("hdnImage").value.split('|');
            document.getElementById("imageMain").src = imageArray[index];
            if (index >= imageArray.length - 1) {
                index = 0;
            }
            else {
                index++;
            }

            //Recussive call of function with time out
            if (dispStatus == "Play") {
                resetDesplay = setTimeout("SetNextImage()", timeInerval);
            }
        }
</script>