function slideStart(slide) {

  var img = document.getElementById("slidestart");

    slide.next();
    slide.play();

}

function slidePause(slide) {

  var img = document.getElementById("slidestart");
    slide.pause();
}

function slideStop(slide) {
  var img = document.getElementById("slidestart");

  img.src="images/nip/start.jpg";
  isPause=false;
  slide.goto_slide(0);
  slide.pause();
}