var imgarrPictures = new Array
("images/backhoe1.jpg",
                               "images/backhoe2.gif",
                               "images/backhoe3.bmp",
                               "images/crawlerdozer1.bmp",
                               "images/crawlerdozer2.jpg",
                               "images/crawlerdozer3.jpg",
                               "images/crawlerdozer4.bmp",
                               "images/dozer.jpg",
                               "images/excavator1.jpg",
                               "images/excavator2.jpg",
                               "images/excavator3.gif",
                               "images/excavator4.jpg",
                               "images/excavator-grader.jpg",
                               "images/grader1.jpg",
                               "images/grader2.jpg",
                               "images/grader3.jpg",
                               "images/loader1.jpg",
                               "images/loader2.jpg",
                               "images/loader4.jpg",
                               "images/old_dump_loading_logs.jpg",
                               "images/student-driver.jpg");



var intNumberOfPictures = imgarrPictures.length;

var intNumber = 0;
var imgCurrentImage = new Image();
imgCurrentImage.src = imgarrPictures[intNumber];


function startrotating() {
  setInterval("movetonextpicture()", 3500);

}


function movetonextpicture() {
  if (intNumber == intNumberOfPictures)
    intNumber = 0;


  imgCurrentImage.src = imgarrPictures[intNumber];

  document["imagerotate"].src = imgCurrentImage.src;


  intNumber += 1;
}