function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function ChangeTxt(txt) { 

    if(document.getElementById){ 
        document.getElementById('infotextflaeche').innerHTML = txt; 
		
	} 
}


// global flag
var isIE = false;
// global request and XML document objects
var req;
// global intervall
var aktiv;
// global name of layer
var layerName;
// debug
var debug = false;

var tagName = '';
// invoked by "Category" select element change;
// loads chosen XML document, clears Topics select
// element, loads new items into Topics select element
function loadDoc(url) {
    try {
    	loadXMLDoc(url);
    }
    catch(e) {
        var msg = (typeof e == "string") ? e : ((e.message) ? e.message : "Unknown Error");
        if (debug == true)
        	alert("Unable to get XML data:\n" + msg);
        
        window.clearInterval(aktiv);
        writeToDiv('Error');
    }
     
}

// retrieve XML document (reusable generic function);
// parameter is URL string (relative or complete) to
// an .xml file whose Content-Type is a valid XML
// type, such as text/xml; XML source must be from
// same domain as HTML file
function loadXMLDoc(url) {
	// branch for native XMLHttpRequest object
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = processReqChange;
        req.open("GET", url, true);
        req.send(null);
    // branch for IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        isIE = true;
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = processReqChange;
            req.open("GET", url, true);
            req.send();
        }
    }
}


// handle onreadystatechange event of req object
function processReqChange() {
	// alert(tagName);
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        // alert(req.getAllResponseHeaders());
        if (req.status == 200) {
        	if (tagName == 'textonly')
        	{
        	// Daten als Text empfangen
        	var Value = req.responseText;
        	}
        	else
        	{
        	
        	// Daten als XML-DOM empfangen
        	var Tag = req.responseXML.getElementsByTagName(tagName).item(0);
        	var Value = Tag.firstChild.nodeValue;
			// var data = req.responseXML.getElementsByTagName("time").item(0).data;
        	}
			writeToDiv(Value);
        	
         } else {
         	if (debug == true)
            	alert("There was a problem retrieving the XML data:\n" + req.status + " " + req.statusText);
            
            window.clearInterval(aktiv);
            writeToDiv('Error');
         }
    }
}


function writeToDiv(text) {
	div = document.getElementById(layerName);
    div.innerHTML = "";
    // blast new HTML content into "details" <div>
    div.innerHTML = text;
	// alert(timeValue);
}


function getURLData(url, interval, writeTo, xmlTagName) {
	layerName = writeTo;
	tagName = xmlTagName;
	if (interval > 0) {
		// Zeit in Millisekunden
		interval = interval * 1000;
		aktiv = window.setInterval("loadDoc('"+url+"');", interval);
	} else 
		aktiv = null;
	loadDoc(url);
}