function changeClass(obj, className)
{
  var agt=navigator.userAgent.toLowerCase();
  var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
  
  if(is_ie)
    obj.setAttribute('className', className);
  else
    obj.setAttribute('class', className);   
}

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();
}