var cur_img, op, seq;
cur_img = 0;
op = 100;
seq = 0;
setTimeout("dochange()", 3377);
function dochange()
{
var period = 25;
var obj = document.getElementById("imgrotate");
 if (!obj)
  return;
 switch(seq)
 {
  case 0:
   op -= 2;
   setOpacity(obj, op);
   if (op == 0)
   {
    seq++;
    if (++cur_img >= no_imgs)
    cur_img = 0;
    obj.setAttribute("src", prloadedimgs[cur_img].src);
   }
   break;
  case 1:
   op += 2;
   setOpacity(obj, op);
   if (op == 100)
    seq++;
   break;
  default:
   seq = 0;
   period = 2987;
   break;
}
 setTimeout("dochange()", period);
}
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  obj.style.filter = "alpha(opacity:"+opacity+")";
  obj.style.KHTMLOpacity = opacity/100;
  obj.style.MozOpacity = opacity/100;
  obj.style.opacity = opacity/100;
}

function popup_pasystem() { 
    window.open ("http://primaryauthority.lbro.org.uk/eFpWorkplace/notice.jsp", "LBROPASystem",
                 "location=no,menubar=no,resizable=yes,scrollbars=yes,status=no,titlebar=yes,toolbar=no")

}