var imgs = new Array("images/about01.jpg", "images/about02.jpg", "images/about03.jpg", "images/about04.jpg", "images/about05.jpg",
		    "images/about06.jpg"), preloadimgs = new Array(), abtpicstart = true, abtshowd=document.getElementById("idabtshow"), 
abtime, n = Math.floor(Math.random() * imgs.length);

function preloadabtshow()
{
  for (var i = n; i < imgs.length; i++)
  {
    preloadimgs[i] = new Image();
    preloadimgs[i].src = imgs[i];
  }
  for (var i = 0; i < n; i++)
  {
    preloadimgs[i] = new Image();
    preloadimgs[i].src = imgs[i];
  }
showabtpics();
}

function showabtpics()
{
   if (abtpicstart)
   {
     abtime = setTimeout ("showabtpics()", 3000);
     abtpicstart = false;
   }
   else
   if (document.all)
   {
      abtshowd.style.filter="blendTrans(duration=0.5)";
      abtshowd.filters.blendTrans.Apply();
      abtshowd.src= preloadimgs[n].src;
      abtshowd.filters.blendTrans.Play();
      (n == (imgs.length - 1)) ? n = 0: n++;
      abtime = setTimeout ("showabtpics()", 5000);
   }
   else
   {
      if (opfirstind)
         opvars("showabtpics()", abtshowd, 1);
      else
      {
         abtshowd.src= preloadimgs[n].src;
         opvars("showabtpics()", abtshowd, 2);
         (n == (imgs.length - 1)) ? n = 0: n++;
      }
   }
}