imgs=new Array(new Image(),new Image(),new Image(),new Image());
imgsready=0;

onload=cache;

function cache(){
  if(document.images){
    imgs[0].src="/images/mover-0.gif";
    imgs[1].src="/images/mover-1.gif";
    imgs[2].src="/images/mover-2.gif";
    imgs[3].src="/images/mover-3.gif";
    imgsready=1;
  }
}

function swap(img,state){
  if(imgsready>0 && document.images && document.images[img])
    document.images[img].src=imgs[state].src;
}

function disp(img,tgt,doc){
  if(imgsready>0 && document.images && document.images[img]){
    for(i=0;i<document.images.length;i++)
      if(document.images[i].src.indexOf("mover-") != -1)
        document.images[i].src=imgs[0].src;

    document.images[img].src=imgs[1].src;
  }

  if(parent.frames && parent.frames[tgt])
    parent.frames[tgt].location.href=doc;
}