function about() {
  document.getElementById('aboutdiv').style.visibility = "visible";
}
function aboutClose() {
  document.getElementById('aboutdiv').style.visibility = "hidden";
}
function ajax(url, callbackFunction){ /* thanks wikipedia */

  var request = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("MSXML2.XMLHTTP.3.0");
  if( !window.XMLHttpRequest ) XMLHttpRequest = function(){
        try{ return new ActiveXObject("MSXML3.XMLHTTP") }catch(e){}
        try{ return new ActiveXObject("Msxml2.XMLHTTP") }catch(e){}
        try{ return new ActiveXObject("Microsoft.XMLHTTP") }catch(e){}
        throw new Error("Could not find an XMLHttpRequest alternative.")
  };

  request.open("GET", url, true);

  request.onreadystatechange = function(){
  if (request.readyState == 4 && request.status == 200) {
                if (request.responseText){

                        callbackFunction(request.responseText);
                }
        }
  };
  request.send(null);
}
function whois_callback(response) {
  document.getElementById('whois').innerHTML=response;
}
function whois() {
  var url = "/whois";
  ajax(url, whois_callback);
}
function pagerank_callback(response) {
  document.getElementById('pagerank').innerHTML=response;

}
function pagerank() {
  var url = "/pagerank";
  ajax(url, pagerank_callback);
}

function screenshot_callback(response) {
  document.getElementById('webshot').innerHTML=response;
}
function screenshot() {
  var url = "/screenshot";
  ajax(url, screenshot_callback);
}
function value_callback(response) {
  document.getElementById('value').innerHTML=response;
}
function value() {
  var url = "/value";
  ajax(url, value_callback);
}
function rapportera(d) {
  if(confirm("Press OK to report a broken screenshot/webshot!")) {
	window.location = '/report/' + d;
  }
}
function showBud() {
  document.getElementById('bud').style.visibility = "visible";
}
function closeBud() {
  document.getElementById('bud').style.visibility = "hidden";
}
function skickabud_callback(response) {
  document.getElementById('laggbud').innerHTML=response;
}