var xmlhttp;
function show_nieuws(vol,hist){
	xmlhttp=null;
	if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
		 xmlhttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }

	xmlhttp.onreadystatechange=state_Change;
	xmlhttp.open("GET","nieuwtjes.php?vol="+vol+"&hist="+hist,true);
	xmlhttp.send(null);
}

function state_Change(){
	if (xmlhttp.readyState==4)
  {// 4 = "loaded"
  if (xmlhttp.status==200)
	{// 200 = "OK"
		document.getElementById('berichten').innerHTML=xmlhttp.responseText;
	}
  else
	{
		alert("geen nieuws; status= " + xmlhttp.status);
	}
  }
}