var httpAjax = false;

function compricerAjax(url) {
  httpAjax = false;
  handler = false;

  if(window.XMLHttpRequest) {
    httpAjax = new XMLHttpRequest();
    if(httpAjax.overrideMimeType) {
      httpAjax.overrideMimeType('text/xml');
      /*httpAjax.overrideMimeType('text/xml; charset=iso-8859-1');*/
    }
  } else if(window.ActiveXObject) {
    try {
      httpAjax = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        httpAjax = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {
        alert("Couldnt build an AJAX instance.");
        return false;
      }
    }
  }

  try {
    httpAjax.onreadystatechange = getState();
  } catch(e) {
    alert("onreadystatechange didnt go well!");
    return false;
  }
  try {
    httpAjax.open("GET", url, true);
    /*httpAjax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");*/

    /*if(!httpAjax.getResponseHeader("Date")) {
      var cached = httpAjax;
      httpAjax =  new XMLHttpRequest();
      var ifModifiedSince = cached.getResponseHeader("Last-Modified");
      ifModifiedSince = (ifModifiedSince) ?
          ifModifiedSince : new Date(0); // January 1, 1970
      httpAjax.open("GET", url, false);
      httpAjax.setRequestHeader("If-Modified-Since", ifModifiedSince);
      httpAjax.send("");
      if(httpAjax.status == 304) {
        httpAjax = cached;
      }
    }*/

  } catch(e) {
    /*document.getElementById("ajaxmessage").innerHTML = "kan inte ladda sidan.";*/
    alert("Couldnt open url. FFS!!!");
    return false;
  }
  try {
    httpAjax.send(null);
  } catch(e) {
    alert("Couldnt send request.");
    return false;
  }

  return true;
}


function getState() {
  /*
    * 0 (uninitialized)
    * 1 (loading)
    * 2 (loaded)
    * 3 (interactive)
    * 4 (complete)
  */
  if(httpAjax.readyState == 4) {
    document.getElementById("ajaxmessage").innerHTML = httpAjax.responseText;
    return true;
  } else {
    document.getElementById("ajaxmessage").innerHTML = "Sidan laddas. Var god vänta...";
  }
}

function pausecomp(millis) 
{
  var date = new Date();
  var curDate = null;

  do { curDate = new Date(); } 
  while(curDate-date < millis);
}

function addLoadEvent( func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function(){
      if(oldonload) {
        oldonload( );
      }
      func();
    }
  }
}

var maxloops = 1500;
var startloops = 0;
function runLoop(functionName, time){
  if(startloops > maxloops)
    return false;

  startloops++;
  t=setTimeout('runLoop(\"'+functionName+'\", \"'+time+'\")', time);
  eval(functionName);
}

var oldresponse;
function getRecentSearches(targetId, url, requestType)
{
  var xmlHttp;
  try {
    xmlHttp = new ActiveXObject('Msxml2.XMLHTTP');
  }
  catch (e) {
    try {
      xmlHttp = new ActiveXObject( 'Microsoft.XMLHTTP');
    }
    catch (e2) {
      try {
        xmlHttp = new XMLHttpRequest();
      }
      catch (e3) {
        xmlHttp = false;  
      }
    }
  }
  
  xmlHttp.onreadystatechange=function(){
    if( xmlHttp.readyState==4) {
      target = document.getElementById(targetId);
      var fadeOutTime = new Date().getTime();
      //var str1 = target.innerHTML;
      //  oldresponse = xmlHttp.responseText;
      var splitted = xmlHttp.responseText.split('|');
      //alert(splitted[0]);
      //alert(hej);
      //if(target.innerHTML.substr(0,110) != xmlHttp.responseText.substr(0,110)){
      if(xmlHttp.responseText.length > 10 && oldresponse != splitted[0]){
        oldresponse = splitted[0];
        var myTimer = setTimeout("FadeOutRecentSearch('"+targetId+"', '" + splitted[1] +"', '"+fadeOutTime+"')");
      }
    }
  }
  if(requestType == 'POST')
    xmlHttp.open('POST',url,true);
  else
    xmlHttp.open('GET',url,true);
  xmlHttp.send( null);
}

function FadeOutRecentSearch(targetId, responseText, fadeOutTime) {
  var myElement = document.getElementById(targetId);
  var myImage = document.getElementById('recentsearchimageid');
  var timeDiff = (new Date).getTime() - fadeOutTime;
  if (timeDiff < 500) {
      myElement.style.opacity = 1 - timeDiff / 500;
      myElement.style.filter = "alpha(opacity=" + (100 - timeDiff / 5) + ")";

      myImage.style.opacity = 1 - timeDiff / 500;
      myImage.style.filter = "alpha(opacity=" + (100 - timeDiff / 5) + ")";
      var myTimer = setTimeout("FadeOutRecentSearch('"+targetId+"', '" + responseText + "', '" + fadeOutTime + "')", 50);
  } else {
    var fadeTime = (new Date).getTime();
    document.getElementById(targetId).innerHTML = responseText;
    document.getElementById('recentsearchimageid').src = document.getElementById('newrecentsearchimageid').src;
    var myTimer = setTimeout("FadeInRecentSearch('"+targetId+"','" + fadeTime + "')", 30);
  }
}

function FadeInRecentSearch(targetId, fadeInTime) {
  var myElement = document.getElementById(targetId);
  var myImage = document.getElementById('recentsearchimageid');
  var timeDiff = (new Date).getTime() - fadeInTime;
  if (timeDiff < 500) {
      myElement.style.opacity = timeDiff / 500;
      myElement.style.filter = "alpha(opacity=" + (timeDiff / 5) + ")";
      myImage.style.opacity = timeDiff / 500;
      myImage.style.filter = "alpha(opacity=" + (timeDiff / 5) + ")";
      var myTimer = setTimeout("FadeInRecentSearch('"+targetId+"', '" + fadeInTime + "')", 50);
  }else{
      myElement.style.opacity = 1;
      myElement.style.filter = "alpha(opacity=" + 100 + ")";
      myImage.style.opacity = 1;
      myImage.style.filter = "alpha(opacity=" + 100 + ")";
  }
}

function getExpertQuestion(expertPanelStartId, maxId){
  expertQuestionStartid++;
  if(expertQuestionStartid > maxId)
    expertQuestionStartid = 0; 

  var fadeOutTime = new Date().getTime();
  var myTimer = setTimeout("FadeOutExpertQuestion('"+expertQuestionStartid+"', '"+fadeOutTime+"')");
}

function FadeOutExpertQuestion(expertQuestionid, fadeOutTime) {
  var myImage = document.getElementById("expertquestion_img");
  /*
  var timeDiff = (new Date).getTime() - fadeOutTime;
  if (timeDiff < 500) {
      myImage.style.opacity = 1 - timeDiff / 500;
      myImage.style.filter = "alpha(opacity=" + (100 - timeDiff / 5) + ")";
      var myTimer = setTimeout("FadeOutExpertQuestion('"+expertQuestionid+"', '" + fadeOutTime + "')", 50);
  } else {
    */
    var fadeTime = (new Date).getTime();
    if( document.getElementById('expertquestion_'+expertQuestionid) != null ) {
      myImage.innerHTML = document.getElementById('expertquestion_'+expertQuestionid).innerHTML;
    } else { return false; }
    //var myTimer = setTimeout("FadeInExpertQuestion('" + fadeTime + "')", 30);
    /*
  }
  */
}

function FadeInExpertQuestion(fadeInTime) {
  var myImage = document.getElementById("expertquestion_img");

  var timeDiff = (new Date).getTime() - fadeInTime;
  if (timeDiff < 500) {
      myImage.style.opacity = timeDiff / 500;
      myImage.style.filter = "alpha(opacity=" + (timeDiff / 5) + ")";
      var myTimer = setTimeout("FadeInExpertQuestion('" + fadeInTime + "')", 30);
  }else{
      myImage.style.opacity = 1;
      myImage.style.filter = "alpha(opacity=" + 100 + ")";
  }
}

function getLatestExpertpanel(expertPanelStartId, maxId)
{
  expertPanelStartId_real++;
  expertPanelStartId = expertPanelStartId_real;
  if(expertPanelStartId > maxId){
    expertPanelStartId = 1;
    expertPanelStartId_real = 1;
  }

  var fadeOutTime = new Date().getTime();
  var myTimer = setTimeout("FadeOutLatestExpertpanel('"+expertPanelStartId+"', '"+fadeOutTime+"')");
}

function FadeOutLatestExpertpanel(expertPanelStartId, fadeOutTime) {
  var myElement = document.getElementById('expertpanel_rndcontent');
  var myImage = document.getElementById("expertpanelauthorimg_src");
  var timeDiff = (new Date).getTime() - fadeOutTime;
  if (timeDiff < 500) {
      myElement.style.opacity = 1 - timeDiff / 500;
      myElement.style.filter = "alpha(opacity=" + (100 - timeDiff / 5) + ")";

      myImage.style.opacity = 1 - timeDiff / 500;
      myImage.style.filter = "alpha(opacity=" + (100 - timeDiff / 5) + ")";
      var myTimer = setTimeout("FadeOutLatestExpertpanel('"+expertPanelStartId+"', '" + fadeOutTime + "')", 50);
  } else {
    var fadeTime = (new Date).getTime();
    document.getElementById('expertpanel_rndcontent').innerHTML = document.getElementById('expertpanel_'+expertPanelStartId).innerHTML;;
    document.getElementById('expertpanelauthorimg_src').src = document.getElementById('expertpanelauthorimg_'+expertPanelStartId).src;
    var myTimer = setTimeout("FadeInLatestExpertpanel('"+expertPanelStartId +"','" + fadeTime + "')", 30);
  }
}

function FadeInLatestExpertpanel(expertPanelStartId, fadeInTime) {
  var myElement = document.getElementById('expertpanel_rndcontent');
  var myImage = document.getElementById("expertpanelauthorimg_src");

  var timeDiff = (new Date).getTime() - fadeInTime;
  if (timeDiff < 500) {
      myElement.style.opacity = timeDiff / 500;
      myElement.style.filter = "alpha(opacity=" + (timeDiff / 5) + ")";
      myImage.style.opacity = timeDiff / 500;
      myImage.style.filter = "alpha(opacity=" + (timeDiff / 5) + ")";
      var myTimer = setTimeout("FadeInLatestExpertpanel('"+expertPanelStartId +"','" + fadeInTime + "')", 30);
  }else{
      myElement.style.opacity = 1;
      myElement.style.filter = "alpha(opacity=" + 100 + ")";
      myImage.style.opacity = 1;
      myImage.style.filter = "alpha(opacity=" + 100 + ")";
  }
}