var xmlHttp

function anfordern(email,woher)
{   
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

if (woher=="newsletter") {    
  var url="newsletter_anfordern.php"
  url=url+"?email="+email
  url=url+"&sid="+Math.random()
}

if (woher=="schulungen") {     
  var url="schulungen_anfordern.php"
  url=url+"?email="+email
  url=url+"&sid="+Math.random()
}

// alert(url);
xmlHttp.onreadystatechange=stateChanged 
 xmlHttp.open("GET",url,true)
 xmlHttp.send(null)

}

function stateChanged() 
{              //   alert("vor: "+xmlHttp.readyState);
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {                          //   alert("innen: "+xmlHttp.readyState); alert(xmlHttp.responseText );
 document.getElementById("div_anforderung_text").innerHTML=xmlHttp.responseText 
  //alert(document.getElementById("div_newsletter_link").style.display);
  var pos = xmlHttp.responseText.indexOf("Fehler");
  if (pos<0)   {
    document.getElementById("div_anforderung_link").style.display = 'none';
  }
 } 
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
//Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}


function rufe()
  {
  alert("rufe");
  }