Zet dit ergens in je BODY:

<script language="JavaScript" type="text/javascript"> 
<!-- Script afkomstig van Sitemasters.be 
 
  document.write("<b>Je browser: </b>", navigator.appName, "<br>"); 
  document.write("<b>Codenaam browser: </b>", navigator.appCodeName, "<br>"); 
  document.write("<b>Browser versie: </b>", navigator.appVersion, "<br>"); 
  document.write("<b>Platform: </b>", navigator.platform, "<br>"); 
  document.write("<b>Pageviews: </b>", history.length, "<br>"); 

  if (navigator.javaEnabled() < 1) {
    java = "Nee"; 
  }
  if (navigator.javaEnabled() == 1) {
    java = "Ja";
  }

  document.write("<b>Java aan? </b>", java, "<br>");
  document.write("<b>Resolutie: </b>",screen.width," x ",screen.height,"<br>"); 
  document.write("<b>Kleurdiepte: </b>",window.screen.colorDepth,"-bit<br>"); 
  
  
// einde script --> 
</script>