function ToggleNav(wert) {
 
 	if(document.getElementById("navon"+wert+"").style.display == "none") {
 	
 		document.getElementById("navon"+wert+"").style.display = "block";
 		document.getElementById("navoff"+wert+"").style.display = "none";
 	
 	} else {

 		document.getElementById("navon"+wert+"").style.display = "none";
 		document.getElementById("navoff"+wert+"").style.display = "block";
 	
 	}
 
 }
 
 
 function SkipCalendar(year,month) {
 		
 	var req = (window.XMLHttpRequest)
 		  ?
 		  new XMLHttpRequest()
 		  :
 		  ((window.ActiveXObject)
 		  ?
 		  new ActiveXObject("Microsoft.XMLHTTP")
 		  :
 		  false
 		  );
 
 	req.open("GET","/php/veranstaltungskalender.php?year="+year+"&month="+month+"",true);
 
 	req.setRequestHeader('If-Modified-Since', 'Sat, 1 Jan 2000 00:00:00 GMT');
 
 	req.onreadystatechange = function() {
 
 		if(req.readyState==4) {
 
 			if(req.status == 200) {
 
 				var d = document.getElementById("calendar");
 				d.innerHTML = req.responseText;
 
 			}
 		}
 	}
 
 	req.send(null);
 
 }
 
 
 function ShowPreloader(year,month) {
 
 	document.getElementById("calendar").innerHTML = "<div style=\"height:180px;width:225px;\"><div style=\"margin-top:10px;padding-left:20px;line-height:20px;height:20px;background:url(/img_de/shared/headline-bg.jpg) top left repeat-x;\"><span class=\"copy14w\">&nbsp;</span></div><img style=\"margin:60px 0 0 90px;\" src=\"/img_de/shared/loading.gif\" alt=\"\" border=\"0\"></div>";
 
 	window.setTimeout("SkipCalendar("+year+","+month+")", 1000);
 
}