// JavaScript Document
function klappen(id){
	if (document.getElementById(id).style.display == 'none' )
		document.getElementById(id).style.display = 'block';
	else
		document.getElementById(id).style.display = 'none';
}

function radioWert(rObj) {
    for (var i=0; i<rObj.length; i++) if (rObj[i].checked) return rObj[i].value;
    return false;
  }

function auswahlblock(idausgabe,idthema) {
	
	document.getElementById('ladevorgang').style.display = 'block';

if (request) {

		var ausgabe 	= document.getElementById(idausgabe);
		var thema	 	= idthema;
		
		parameter = 'thema='+thema;
		request.open("POST", 'php/auswahlblock.php');
		
		request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		request.setRequestHeader("Content-length", parameter.length);
		request.setRequestHeader("Connection", "close");
		if (navigator.appName == 'Firefox') {
			request.overrideMimeType('text/xml');
		}
		
		request.onreadystatechange = function() {
		
			if (request.readyState == 4) {
			
				if(request.status == 200) {
					
					document.getElementById('ladevorgang').style.display = 'none';
					ausgabe.innerHTML = request.responseText;
					
				}
		
			}
		
		}
		
		request.send(parameter);
			
	}
	
}

function umfragen(datei, id, antwort, ergebnisse) {
	
	if (request) {

		var ausgabe 	= document.getElementById(id);
		var umfrage		= document.getElementById('umfrage').value;
		
		parameter = 'antwort='+antwort+'&umfrage='+umfrage+'&ergebnisse='+ergebnisse;
		request.open("POST", datei);
		
		request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		request.setRequestHeader("Content-length", parameter.length);
		request.setRequestHeader("Connection", "close");
		if (navigator.appName == 'Firefox') {
			request.overrideMimeType('text/xml');
		}
		
		request.onreadystatechange = function() {
		
			if (request.readyState == 4) {
			
				if(request.status == 200) {
				
					ausgabe.innerHTML = request.responseText;
					
				}
		
			}
		
		}
		
		request.send(parameter);
			
	}
	
}
/*
function kurznachrichten(datei, id) {
	
	if (request) {

		var ausgabe	= document.getElementById(id);
		var text 	= document.getElementById('kntext').value;
		var knname 	= document.getElementById('knname').value;
		
		parameter = 'text='+text+'&knname='+knname;
		request.open("POST", datei);
		
		request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		request.setRequestHeader("Content-length", parameter.length);
		request.setRequestHeader("Connection", "close");
		if (navigator.appName == 'Firefox') {
			request.overrideMimeType('text/xml');
		}
		
		request.onreadystatechange = function() {
		
			if (request.readyState == 4) {
			
				if(request.status == 200) {
				
					ausgabe.innerHTML = request.responseText;
					
				}
		
			}
		
		}
		
		request.send(parameter);
			
	}
	
}
*/
function checkLen()
{
maxLen=160;
var txt=document.getElementById('kntext').value;
if(txt.length>maxLen)
    {
      alert("Bitte maximal "+maxLen+" Zeichen eingeben!");
      document.getElementById('kntext').value=txt.substring(0,maxLen);
      document.getElementById('zaehler').value=0;
    }
else
    {
    document.getElementById('zaehler').value=maxLen-txt.length;
    }
}
/*
// aktuelle Daten laden
loadData();

// alle 5 Sekunden neue Daten holen
setInterval("loadData()",5000);

function loadData()
{
 if (request) {
     request.open('GET', 'php/kurznachrichtenladen.php', true);
     request.onreadystatechange = function () {
         if (request.readyState == 4) {
             document.getElementById("kurznachrichten").innerHTML = request.responseText;
         }
     };
     request.send(null);
 }
}
*/
function checkLenBlog()
{
maxLen=500;
var txt=document.getElementById('kommentar').value;
if(txt.length>maxLen)
    {
      alert("Bitte maximal "+maxLen+" Zeichen eingeben!");
      document.getElementById('kommentar').value=txt.substring(0,maxLen);
      document.getElementById('zaehlerblog').value=0;
    }
else
    {
    document.getElementById('zaehlerblog').value=maxLen-txt.length;
    }
}