var request = false;
   var i = 1;
   var j = 1;
   var ml = 1;
	// Request senden
	function setRequest(i, j, ml) {
    http_request = false;
    if (window.XMLHttpRequest) { // Mozilla, Safari,...
    http_request = new XMLHttpRequest();
    if (http_request.overrideMimeType) {
      http_request.overrideMimeType('text/xml');
    }
    } else if (window.ActiveXObject) { // IE
    try {
      http_request = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {
  try {
    http_request = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e) {}
}
}
// überprüfen, ob Request erzeugt wurde
		if (!http_request) {
			alert("Kann keine XMLHTTP-Instanz erzeugen");
			return false;
		} else {
			var url = "requestGal.php?sek=" + i + "&pfeili=" + j + "&ml=" + ml;
			// Request öffnen
			http_request.open('get', url, true);
			// Request senden
			http_request.send(null);
			// Request auswerten
			http_request.onreadystatechange = interpretRequest;
		}
	}

	// Request auswerten
	function interpretRequest() {
		switch (http_request.readyState) {
			// wenn der readyState 4 und der request.status 200 ist, dann ist alles korrekt gelaufen
			case 4:
				if (http_request.status != 200) {
					alert("Der Request wurde abgeschlossen, ist aber nicht OK\nFehler:"+request.status);
				} else {
					var content = http_request.responseText;
					// den Inhalt des Requests in das <div> schreiben
					document.getElementById('request').innerHTML = content;
				}
				break;
			default:
				break;
		}
	}

  /*

  var http_request = false;

  function macheRequest(i, j) {
    http_request = false;
    if (window.XMLHttpRequest) { // Mozilla, Safari,...
    http_request = new XMLHttpRequest();
    if (http_request.overrideMimeType) {
      http_request.overrideMimeType('text/xml');
    }
    } 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('Ende Icon Sad in Erste Schritte mit AJAX  Kann keine XMLHTTP-Instanz erzeugen');
  return false;
}

  http_request.onreadystatechange = alertInhalt;
  var url = "requestGal.php?sek=" + i + "&pfeili=" + j;
  http_request.open('GET', url, true);
  http_request.send(null);
  request.onreadystatechange = alertInhalt;
}

function alertInhalt() {
  if (http_request.readyState == 4) {
    var xmldoc = http_request.responseXML;
    var root_node = xmldoc.getElementsByTagName('nachricht').item(0);
    var answer = root_node.firstChild.data;
  //var answer = http_request.responseText;
  if(document.getElementById("request").innerHTML != answer){
    document.getElementById("request").innerHTML = answer;
  }
  else{
    document.getElementById("request").innerHTML = "";
  }
}
}
*/