var AjaxObject = ajaxManager(); 

function ajaxManager() {
  var i;
  var request;
  var versions = new Array("MSXML2.XMLHttp.6.0", "MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0", "MSXML2.XMLHttp.3.0", "MSXML2.XMLHttp", "Microsoft.XMLHttp");

  if(document.getElementById) {
    if(window.XMLHttpRequest) {
      request = new XMLHttpRequest();
    }
    if(window.ActiveXObject) {
      for(i = 0; i < versions.length; i++) {
        try {
          request = new ActiveXObject(versions[i]);
        } catch (exception) {
        }
      } 
    }
  }

  return request;
}

function sichtbar_db(branche) {
  url = "./ajax.php?branche="+branche;
  AjaxObject.open("GET", url);
  AjaxObject.onreadystatechange = BranchenRueckgabe;
  AjaxObject.send(null);
}

function BranchenRueckgabe() {
  if(AjaxObject.readyState == 4 && AjaxObject.status == 200) {
    var phprueckgabe = AjaxObject.responseText;
    var el = document.getElementById('auswahl');
    el.innerHTML = phprueckgabe;
  }
}

function auswaehlen(bid){

	/*if(typeof document.getElementById('branche['+bid+']').innerHTML == 'null'){
		url = "./ajax.php?bid="+bid;
  		AjaxObject.open("GET", url);
  		AjaxObject.onreadystatechange = BranchenRueckgabe2;
  		AjaxObject.send(null);
	}*/

	//alert('bid '+bid);

	try
	{
		test = document.getElementById('branche['+bid+']').innerHTML;
	}catch(e) {
		var url = "./ajax.php?bid="+bid;
  		AjaxObject.open("GET", url);
  		AjaxObject.onreadystatechange = BranchenRueckgabe2;
  		AjaxObject.send(null);
		//document.getElementById('meine_auswahl').innerHTML = document.getElementById('meine_auswahl').innerHTML + bid + "<br>";
		//alert(bid);
	}
}

function BranchenRueckgabe2() {
  if(AjaxObject.readyState == 4 && AjaxObject.status == 200) {
    var phprueckgabe = AjaxObject.responseText;
    var el = document.getElementById('meine_auswahl');
    el.innerHTML = el.innerHTML + phprueckgabe;
  }
}