var ns6=document.getElementById&&!document.all
var ie=document.all

function changeto(e,highlightcolor){
source=ie? event.srcElement : e.target
if (source.tagName=="TR"||source.tagName=="TABLE")
return
while(source.tagName!="TD"&&source.tagName!="HTML")
source=ns6? source.parentNode : source.parentElement
if (source.style.backgroundColor!=highlightcolor&&source.id!="ignore")
source.style.backgroundColor=highlightcolor
}

function contains_ns6(master, slave) { //check if slave is contained by master
while (slave.parentNode)
if ((slave = slave.parentNode) == master)
return true;
return false;
}

function changeback(e,originalcolor){
if
(ie&&(event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="ignore")||source.tagName=="TR"||source.tagName=="TABLE")
return
else if (ns6&&(contains_ns6(source, e.relatedTarget)||source.id=="ignore"))
return
if (ie&&event.toElement!=source||ns6&&e.relatedTarget!=source)
source.style.backgroundColor=originalcolor
}

if (document.images) {
  var choff = new Image(); // for the inactive image
  choff.src = "/images/ch.gif";
  var chon = new Image(); // for the active image
  chon.src = "/images/chon.gif";
}

function act_ch() {
  if (document.images)
    document.images.ch.src = chon.src;
}

function inact_ch() {
  if (document.images)
    document.images.ch.src = choff.src;
}

if (document.images) {
  var thoff = new Image(); // for the inactive image
  thoff.src = "/images/th.gif";
  var thon = new Image(); // for the active image
  thon.src = "/images/thon.gif";
}

function act_th() {
  if (document.images)
    document.images.th.src = thon.src;
}

function inact_th() {
  if (document.images)
    document.images.th.src = thoff.src;
}

//-->


var boodschap = ''; 
function dgstatus()

{

      window.status = boodschap;
 timerID= setTimeout("dgstatus()", 1);

}

<!--
dgstatus();
//-->