var xmlhttp;
var bIsFirstLoad=true;

function AjaxRequest(url){
  hideTooltip();
  bAlertCookieShown=false;
  if(!bIsFirstLoad)
  {
    document.getElementById('loadbartable').style.display='block';
    document.getElementById('loadbartable').style.visibility='visible';
    document.getElementById('loadbar').style.display='block';
  }
  bIsFirstLoad=false; // is not the first time an ajax request is done 
  xmlhttp=null;
//   code for Mozilla, etc.
  if (window.XMLHttpRequest){
    xmlhttp=new XMLHttpRequest();
  }
//   code for IE
  else if (window.ActiveXObject){
//     IE7 (and newer)
    try
    {
      if ( ActiveXObject("Msxml2.XMLHTTP") ){
        xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
//     IE6 and older
      }else{
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    } catch(e) {
      xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    
  }
  if (xmlhttp!=null){
    xmlhttp.onreadystatechange=state_Change;
    xmlhttp.open("GET", url, true);
    xmlhttp.send(null);
  }
  else{
    alert("Your browser does not support XMLHTTP.");
  }
}

function state_Change(){

  // if xmlhttp shows "loaded"
  if (xmlhttp.readyState==4){
      document.getElementById('loadbar').style.display='none';
      document.getElementById('loadbartable').style.visibility='hidden';
      document.getElementById('loadbartable').style.display='none';
      document.getElementById('contenttd').style.visibility='visible';
    // if "OK"
//     alert(xmlhttp.status);
    if (xmlhttp.status==200){
//       document.getElementById('loadbar').style.display='none';
//       document.getElementById('loadbartable').style.visibility='hidden';
//       document.getElementById('loadbartable').style.display='none';
//       document.getElementById('contenttd').style.visibility='visible';
      responseText = xmlhttp.responseText;

      var entities = htmlentities(responseText);

      try // this might throw an error since requests to 'assistantredirector.exe' return no valid javascript statement
      {
        eval(entities);
      } catch (exc){
//         alert('(' +exc.toString()+ ') - not yet implemented ;)');
      }
    }
    else if (xmlhttp.status==204){
//       do nothing (HTTP 204 - NO CONTENT)
    }    
    else{
      alert("Problem retrieving XML data\n"+xmlhttp.responseText +"\nxmlhttp.status: "+xmlhttp.status+"\n");
      
    }
  }
}


function htmlentities(str,typ) {
  if(typeof str=="undefined") str="";
  if(typeof typ!="number") typ=2;
  typ=Math.max(0,Math.min(3,parseInt(typ)));
  var html=new Array();
//   html[38]="&"; 
//   html[60]="<"; html[62]=">";
  if(typ==1 || typ==3) html[39]="'";
  if(typ==2 || typ==3) html[34]=""";
  for(var i in html) eval("str=str.replace(/"+String.fromCharCode(i)+"/g,\""+html[i]+"\");");
  var entity=new Array(
    " ","¡","¢","£","¤","¥","¦","§",
    "¨","©","ª","«","¬","­","®","¯",
    "°","±","²","³","´","µ","¶","·",
    "¸","¹","º","»","¼","½","¾","¿",
    "À","Á","Â","Ã","Ä","Å","Æ","Ç",
    "È","É","Ê","Ë","Ì","Í","Î","Ï",
    "Ð","Ñ","Ò","Ó","Ô","Õ","Ö","×",
    "Ø","Ù","Ú","Û","Ü","Ý","Þ","ß",
    "à","á","â","ã","ä","å","æ","ç",
    "è","é","ê","ë","ì","í","î","ï",
    "ð","ñ","ò","ó","ô","õ","ö","÷",
    "ø","ù","ú","û","ü","ý","þ","ÿ"
  );
  for(var i in entity) eval("str=str.replace(/"+String.fromCharCode(i*1+160)+"/g,\""+entity[i]+"\");");
  return str;
}