function makeRequest(url,dest) {
 var http_request = false;
  if (window.XMLHttpRequest) { // Mozilla, Safari,...
   http_request = new XMLHttpRequest();
   if (http_request.overrideMimeType) {
    http_request.overrideMimeType('text/xml');
      // See note below about this line
   }
  } else if (window.ActiveXObject) { // IE
   try {
    http_request = new ActiveXObject("Msxml2.XMLHTTP");
   } catch (e) {
      try {
       http_request = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {}
     }
   }

   if (!http_request) {
    alert('Túl régi böngészőt használ! Kérjük frissítse!');
            return false;
   }
   	document.getElementById(dest).style.display = "none";
    http_request.onreadystatechange = function() { alertContents(http_request,dest); };
    http_request.open('GET', url+'&dest='+dest, true);
    http_request.send(null);
}

function alertContents(http_request,dest) {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
   var celdiv = document.getElementById(dest);
   
   celdiv.innerHTML = http_request.responseText;
   celdiv.style.display = "block";
  } else {
     var celdiv = document.getElementById(dest);
   	 celdiv.innerHTML = "<span style='color:red;font-weight: bold'>Nem működik a kért alrendszer!</span>";
    }
 }
}