var w3c=(document.getElementById)?true:false;
var ns4=(document.layers)?true:false;
var ie4=(document.all && !w3c)?true:false;
var ie5=(document.all && w3c)?true:false;
var x,y,sx,sy,test,testW,testH;

function getwindowsize(){
if(ie4||ie5){
x=document.body.clientWidth-testW-10;
y=document.body.clientHeight-testH-10;
}else{
x=window.innerWidth-testW-25;
y=window.innerHeight-testH-10;}
setInterval('movetest()',100);}

function movetest(){
if(ie4||ie5){
sx=document.body.scrollLeft;
sy=document.body.scrollTop;
}else{
sx=pageXOffset;
sy=pageYOffset;}
if(ns4)test.moveTo((x+sx),(y+sy));
else{
test.style.left=x+sx+'px';
test.style.top=y+sy+'px';}}

window.onload=function(){
test=(ns4)?document.layers['test']:(ie4)?document.all['test']:document.getElementById('test');
if(ns4){
testW=test.document.images['MailBeeld'].width;
testH=test.document.images['MailBeeld'].height;
}else{
testW=document.images['MailBeeld'].width;
testH=document.images['MailBeeld'].height;}
getwindowsize();}

window.onresize=function(){
if(ns4)setTimeout('history.go(0)', 400);
else getwindowsize();}