//----------
var xmlhttp

function getXMLHttpObject(){
  if (window.XMLHttpRequest){
    return new XMLHttpRequest();
  }
  if (window.ActiveXObject){
    return new ActiveXObject("Microsoft.XMLHTTP");
  }
  return null;
}  
//----------
function ajaxgetContent(url,TargetID){
  xmlhttp = getXMLHttpObject();
  if (xmlhttp==null){
    alert('No support for Ajax')
    return;
  }           
  alert(url);
  xmlhttp.open('GET',url,false);
  xmlhttp.send(null);
  var result = new String(xmlhttp.responseText);
  document.getElementById(TargetID).innerHTML = result;
  t();
}
function ajaxappendContent(url,TargetID){
  xmlhttp = getXMLHttpObject();
  if (xmlhttp==null){
    alert('No support for Ajax')
    return;
  }           
  alert(url);
  xmlhttp.open('GET',url,false);
  xmlhttp.send(null);
  var result = new String(xmlhttp.responseText);
  document.getElementById(TargetID).innerHTML += result;
  t();
}
  function t(){

 
    var h=getElementHeight(document.getElementById('presentation'));
    anId = document.getElementById('container');
    anId.style.height= (h + 260) + 'px';   
  }