var tck=document.getElementById("ticker1")
var tckRight=0;
var tckWidth=0;
var tckSpeed=1;
var tckFrozen=false;

var numImages=13;
var numVisibleImages=4;
var imageWidth=143;
var pos=0;
var maxleftpos=((numVisibleImages)*imageWidth)-1;
var curImage=5;

ticker_start();

function ticker_start() {
  pos=0;
  for (i=1;i<=numVisibleImages;i++) {
    document.getElementById("divimage"+i).style.backgroundImage="url(./graphics/scrollimage"+i+".jpg)"
  }
  ticker_tick();
}

function ticker_tick() {

  try {
    document.execCommand("BackgroundImageCache", false, true);
  } catch(err) {};

  if (--pos<0) pos=maxleftpos;
  curpos=pos;
  for (i=1;i<=numVisibleImages;i++) {
    if (curpos>maxleftpos) curpos=curpos-maxleftpos;
    document.getElementById("divscrollimage"+i).style.left=curpos - imageWidth + "px";
    if (curpos==(maxleftpos-1)) {
      document.getElementById("divimage"+i).style.backgroundImage="url(./graphics/scrollimage"+curImage+".jpg)"
      if (++curImage>numImages) curImage=1;
    }
    curpos+=imageWidth;
  }
  window.setTimeout("ticker_tick()", 45);
}