function maaklijstje(tabel,wat,div,letters,hideme) {
 var ajaxRequest;
 try
 {
  ajaxRequest = new XMLHttpRequest();
 }
 catch (e)
 {
  try
  {
   ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
  }
  catch (e)
  {
   try
   {
    ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
   }
   catch (e)
   {
    alert("Your browser broke!");
    return false;
   }
  }
 }
 ajaxRequest.onreadystatechange = function()
 {
  if(ajaxRequest.readyState == 4)
  {
   var ajaxDisplay = document.getElementById(div);
   if(ajaxRequest.responseText=='--GEEN--')
   {
    ajaxDisplay.style.display='none';
   }else{
    for (x in hideme)
	{
	 document.getElementById(hideme[x]).style.display='none';
	}
    ajaxDisplay.style.display='block';
    ajaxDisplay.innerHTML = ajaxRequest.responseText;
   }
  }
 }
 var queryString = "http://www.klen.nl/newphp/hardware.php?div=ja&tabel=" + tabel + "&wat=" + wat + "&letter=" + letters;
 ajaxRequest.open("GET", queryString, true);
 ajaxRequest.send(null);
}