var xmlhttp = null;
var finalXML = null;

if (window.ActiveXObject) 
{
 finalXML = new ActiveXObject("MSXML2.DOMDocument.3.0");
}
else
{
 finalXML = document.implementation.createDocument("","",null);
}
finalXML.appendChild(finalXML.createElement("markers"));

countLength = 0;
globalCount=0;
var photoid = new Array();
var phototitleid = new Array();
var photoserverid = new Array();
var photosecret = new Array();

                  
function getRequest() 
{
if (window.XMLHttpRequest) 
{
  return xmlhttp = new XMLHttpRequest(); 
} 
    else if (window.ActiveXObject) 
    {  
    return xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
    } 
}




function sendData()
{
     var request = getRequest();
    var url = "flickrproxy.aspx?method=flickr.people.getPublicPhotos&api_key=09c1df5594901a6b833cecbcc2974337&parametertype=user_id&parametervalue=" + document.getElementById("user").value;
    request.open("GET", url, true);
    request.onreadystatechange = function() { getData(request) };
    request.send(null);   
}


function getData() 
{
 
  if ((xmlhttp.readyState == 4) &&( xmlhttp.status == 200))
  {
     
    var xmlobject = xmlhttp.responseXML;
    var photos =  xmlobject.getElementsByTagName("photo");
    countLength = photos.length;
    
    for (var i = 0; i < photos.length; i++) {
    photoid[i] = photos[i].getAttribute("id");
    phototitleid[i] = photos[i].getAttribute("title");
    photoserverid[i] = photos[i].getAttribute("server");
    photosecret[i] = photos[i].getAttribute("secret");
   } 
   sendGeoData();
   
  }
  
}
  
  function sendGeoData()
  {
     
    var request = getRequest();   
    var url = "flickrproxy.aspx?method=flickr.photos.geo.getLocation&api_key=09c1df5594901a6b833cecbcc2974337&parametertype=photo_id&parametervalue=";
     
    request.open("GET", url + photoid[globalCount], true);
    request.onreadystatechange = function() { getGeoData(request) };
    request.send(null);

 }

function getGeoData(request) 
{
  if (request.readyState == 4 &&  request.status == 200)
  {
    xmlobject = request.responseXML;
    
    var newtag = finalXML.createElement("marker");
    var loc = xmlobject.getElementsByTagName("location")[0];
    var photo = xmlobject.getElementsByTagName("photo")[0];
    newtag.setAttribute("lat", loc.getAttribute("latitude"));
    newtag.setAttribute("lng", loc.getAttribute("longitude"));
    newtag.setAttribute("address", phototitleid[globalCount]);
    newtag.setAttribute("secret", photosecret[globalCount]);
    newtag.setAttribute("server", photoserverid[globalCount]);
    newtag.setAttribute("user_id", document.getElementById("user").value);
    newtag.setAttribute("photo_id", photo.getAttribute("id"));
    
    finalXML.firstChild.appendChild(newtag);
    
    globalCount++;
    
    if (globalCount != countLength)  {
        window.setTimeout(sendGeoData, 10);
    } else {
        saveXml();
    }
  }
}
  
   
function saveXml() 
{
     var xmlToSave = null;
     if(window.ActiveXObject)
     {
        xmlToSave = finalXML.xml
     }
     else
     {
        xmlToSave = new XMLSerializer().serializeToString(finalXML);
     }
     var xmlcode = encodeURIComponent(xmlToSave);
     var url = "Save.aspx?xml=" + xmlcode;
     var request = getRequest();
     request.open("GET", url, true);
     request.onreadystatechange = function() {
          if (request.readyState == 4) {
              alert("File saved.");
          }
      };
      if (request.overrideMimeType) {
        request.overrideMimeType("text/plain");
      }
     request.send(null);
}