// JavaScript Document
function BGmenue(what, handle) {
	if(handle == 'over') {
		what.style.background = '#E2E3DB';
	}
	else {
		what.style.background = '#CDCFC4';
	}
}
function BGsubmenue(what, handle) {
	if(handle == 'over') {
		what.style.background = '#8CAECE';
	}
	else {
		what.style.background = '#7195B6';
	}
}

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

function createAjaxObj(){
	var httprequest=false;
	if (window.XMLHttpRequest){ // if Mozilla, Safari etc
		httprequest=new XMLHttpRequest();
		if (httprequest.overrideMimeType)
		httprequest.overrideMimeType('text/xml');
	}
	else if (window.ActiveXObject){ // if IE
	try {
		httprequest=new ActiveXObject("Msxml2.XMLHTTP");
	} 
	catch (e){
		try{
			httprequest=new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch (e){}
		}
	}
	return httprequest;
}

// -------------------------------------------------------------------
// Main Ajax Ticker Object function
// ajax_ticker(xmlfile, divId, divClass, delay, optionalfadeornot)
// -------------------------------------------------------------------

function ajax_ticker(xmlfile, divId, divClass, delay, fadeornot){
	this.xmlfile=xmlfile; //Variable pointing to the local ticker xml file (txt)
	this.tickerid=divId; //ID of ticker div to display information
	this.delay=delay; //Delay between msg change, in miliseconds.
	this.mouseoverBol=0; //Boolean to indicate whether mouse is currently over ticker (and pause it if it is)
	this.pointer=0;
	this.opacitystring=(typeof fadeornot!="undefined")? "width: 100%; filter:progid:DXImageTransform.Microsoft.alpha(opacity=100); -moz-opacity: 1" : "";
	if (this.opacitystring!="") this.delay+=500; //add 1/2 sec to account for fade effect, if enabled
	this.opacitysetting=0.2; //Opacity value when reset. Internal use.
	this.messages=[]; //Arrays to hold each message of ticker
	this.ajaxobj=createAjaxObj();
	document.write('<div id="'+divId+'" class="'+divClass+'"><div style="'+this.opacitystring+'">Initializing ticker...</div></div>');
	this.getXMLfile();
}

// -------------------------------------------------------------------
// getXMLfile()- Use Ajax to fetch xml file (txt)
// -------------------------------------------------------------------

ajax_ticker.prototype.getXMLfile=function(){
	if (this.ajaxobj){
		var instanceOfTicker=this;
		var url=this.xmlfile+"?bustcache="+new Date().getTime();
		this.ajaxobj.onreadystatechange=function(){instanceOfTicker.initialize()}
		this.ajaxobj.open('GET', url, true);
		this.ajaxobj.send(null);
	}
}

// -------------------------------------------------------------------
// initialize()- Initialize ticker method.
// -Gets contents of xml file and parse it using JavaScript DOM methods 
// -------------------------------------------------------------------

ajax_ticker.prototype.initialize=function(){
  if (this.ajaxobj.readyState == 4){ //if request of file completed
    if (this.ajaxobj.status==200 || window.location.href.indexOf("http")==-1){ //if request was successful
		this.contentdiv=document.getElementById(this.tickerid).firstChild; //div of inner content that holds the messages
		var xmldata=this.ajaxobj.responseText;
		this.contentdiv.style.display="none";
    this.contentdiv.innerHTML=xmldata;
		if (this.contentdiv.getElementsByTagName("div").length==0){ //if no messages were found
			this.contentdiv.innerHTML="<b>Error</b> fetching remote ticker file!";
			return this.ajaxobj;
		}
	var instanceOfTicker=this;
	document.getElementById(this.tickerid).onmouseover=function(){instanceOfTicker.mouseoverBol=1}
	document.getElementById(this.tickerid).onmouseout=function(){instanceOfTicker.mouseoverBol=0}
	if (window.attachEvent) //Clean up loose references in IE
    window.attachEvent("onunload", function(){instanceOfTicker.contentdiv=instanceOfTicker.ajaxobj=null});
	//Cycle through XML object and store each message inside array
	for (var i=0; i<this.contentdiv.getElementsByTagName("div").length; i++){
		if (this.contentdiv.getElementsByTagName("div")[i].className=="message");
		this.messages[this.messages.length]=this.contentdiv.getElementsByTagName("div")[i].innerHTML;
	}
	this.contentdiv.innerHTML="";
	this.contentdiv.style.display="block";
	this.rotatemsg();
	}
}
}

// -------------------------------------------------------------------
// rotatemsg()- Rotate through ticker messages and displays them
// -------------------------------------------------------------------

ajax_ticker.prototype.rotatemsg=function(){
	var instanceOfTicker=this;
	if (this.mouseoverBol==1) //if mouse is currently over ticker, do nothing (pause it)
		setTimeout(function(){instanceOfTicker.rotatemsg()}, 100);
		else{ //else, construct item, show and rotate it!
		this.fadetransition("reset"); //FADE EFFECT- RESET OPACITY
		this.contentdiv.innerHTML=this.messages[this.pointer];
		this.fadetimer1=setInterval(function(){instanceOfTicker.fadetransition('up', 'fadetimer1')}, 100); //FADE EFFECT- PLAY IT
		this.pointer=(this.pointer<this.messages.length-1)? this.pointer+1 : 0;
		setTimeout(function(){instanceOfTicker.rotatemsg()}, this.delay); //update container periodically
	}
}

// -------------------------------------------------------------------
// fadetransition()- cross browser fade method for IE5.5+ and Mozilla/Firefox
// -------------------------------------------------------------------

ajax_ticker.prototype.fadetransition=function(fadetype, timerid){
var contentdiv=this.contentdiv;
if (fadetype=="reset")
  this.opacitysetting=0.2;
if (contentdiv.filters && contentdiv.filters[0]){
	if (typeof contentdiv.filters[0].opacity=="number") //IE6+
		contentdiv.filters[0].opacity=this.opacitysetting*100;
	else //IE 5.5
		contentdiv.style.filter="alpha(opacity="+this.opacitysetting*100+")";
	}
else if (typeof contentdiv.style.MozOpacity!="undefined" && this.opacitystring!=""){
	contentdiv.style.MozOpacity=this.opacitysetting;
}
else
	this.opacitysetting=1;
	if (fadetype=="up")
	this.opacitysetting+=0.1;
	if (fadetype=="up" && this.opacitysetting>=1)
	clearInterval(this[timerid]);
}

function extDates() {
	
	var sm = document.getElementById("show_month");
	var sl = document.getElementById("show_link");
	
	sm.style.display = (sm.style.display) ? '' : 'none';
	sl.innerHTML = (sl.innerHTML=='weitere anzeigen') ? 'weitere ausblenden' : 'weitere anzeigen';
}