var serverSideFile = '/anketa/anketa_glasaj.php';
var voteLeftImage = '/img/anketa_left.gif';
var voteRightImage = '/img/anketa_right.gif';
var voteCenterImage = '/img/anketa_middle.gif';

var graphMaxWidth = 120;// It will actually be a little wider than this because of the rounded image at the left and right
var graphMinWidth = 20;  // Minimum size of graph
var pollScrollSpeed = 0;// Lower = faster
var useCookiesToRememberCastedVotes = true;  // Use cookie to remember casted votes
var txt_totalVotes = 'Glasova: ';

var ajaxObjects = new Array();
var pollVotes = new Array();
var pollVoteCounted = new Array();
var totalVotes = new Array();

var preloadedImages = new Array();
preloadedImages[0] = new Image();
preloadedImages[0].src = voteLeftImage;
preloadedImages[1] = new Image();
preloadedImages[1].src = voteRightImage;
preloadedImages[2] = new Image();
preloadedImages[2].src = voteCenterImage;

function Poller_Get_Cookie(name) {
   var start = document.cookie.indexOf(name+"=");
   var len = start+name.length+1;
   if ((!start) && (name != document.cookie.substring(0,name.length))) return null;
   if (start == -1) return null;
   var end = document.cookie.indexOf(";",len);
   if (end == -1) end = document.cookie.length;
   return unescape(document.cookie.substring(len,end));
} 
// This function has been slightly modified
function Poller_Set_Cookie(name,value,expires,path,domain,secure) {
    expires = expires * 60*60*24*1000;
    var today = new Date();
    var expires_date = new Date( today.getTime() + (expires) );
    var cookieString = name + "=" +escape(value) +
       ( (expires) ? ";expires=" + expires_date.toGMTString() : "") +
       ( (path) ? ";path=" + path : "") +
       ( (domain) ? ";domain=" + domain : "") +
       ( (secure) ? ";secure" : "");
    document.cookie = cookieString;
}


function showVoteResults(pollId,ajaxIndex)
{

  document.getElementById('poller_waitMessage' + pollId).style.display='none';

  var xml = ajaxObjects[ajaxIndex].response;
  xml = xml.replace(/\n/gi,'');

  var reg = new RegExp("^.*?<pollerTitle>(.*?)<.*$","gi");
  var pollerTitle = xml.replace(reg,'$1');

  var resultDiv = document.getElementById('poller_results' + pollId);

  var titleP = document.createElement('P');
  titleP.className='anketa_pitanje';
  titleP.style.textAlign = 'center';
  titleP.innerHTML = pollerTitle;
  resultDiv.appendChild(titleP);

  var options = xml.split(/<option>/gi);

  pollVotes[pollId] = new Array();
  totalVotes[pollId] = 0;
  for(var no=1;no<options.length;no++){

    var elements = options[no].split(/</gi);
    var currentOptionId = false;
    for(var no2=0;no2<elements.length;no2++){
      if(elements[no2].substring(0,1)!='/'){
        var key = elements[no2].replace(/^(.*?)>.*$/gi,'$1');
        var value = elements[no2].replace(/^.*?>(.*)$/gi,'$1');

        if(key.indexOf('optionText')>=0){
          var pOption = document.createElement('P');
          pOption.className='result_pollerOption';
          pOption.style.textAlign = 'left';
          pOption.innerHTML = value + ':';
          resultDiv.appendChild(pOption);
        }

        if(key.indexOf('optionId')>=0){
          currentOptionId = value/1;
        }

        if(key.indexOf('votes')>=0){
          var voteDiv = document.createElement('DIV');
          voteDiv.className='result_pollGraph';
          resultDiv.appendChild(voteDiv);

          var leftImage = document.createElement('IMG');
          leftImage.src = voteLeftImage;
          voteDiv.appendChild(leftImage);

          var numberDiv = document.createElement('DIV');
          numberDiv.style.backgroundImage = 'url(\'' + voteCenterImage + '\')';
          numberDiv.style.textAlign = 'center';
          numberDiv.innerHTML = '0%';
          numberDiv.id = 'result_voteTxt' + currentOptionId;
          voteDiv.appendChild(numberDiv);

          var rightImage = document.createElement('IMG');
          rightImage.src = voteRightImage;
          voteDiv.appendChild(rightImage);

          pollVotes[pollId][currentOptionId] = value;
          totalVotes[pollId] = totalVotes[pollId]/1 + value/1;
        }
      }
    }
  }

  var voteDiv = document.createElement('DIV');
  voteDiv.className='result_div1';
  resultDiv.appendChild(voteDiv);

  var totalVoteP = document.createElement('P');
  totalVoteP.className = 'result_totalVotes';
  totalVoteP.innerHTML = txt_totalVotes + totalVotes[pollId];
  voteDiv.appendChild(totalVoteP);

  setPercentageVotes(pollId);
  slideVotes(pollId,1);
}

function setPercentageVotes(pollId)
{
  for(var prop in pollVotes[pollId]){
    pollVotes[pollId][prop] =  Math.round( (pollVotes[pollId][prop] / totalVotes[pollId]) * 100);
  }

  var currentSum = 0;
  for(var prop in pollVotes[pollId]){
    currentSum = currentSum + pollVotes[pollId][prop]/1;
  }
  pollVotes[pollId][prop] = pollVotes[pollId][prop] + (100-currentSum);
}

function slideVotes(pollId,currentPercent)
{
  currentPercent = currentPercent/1 + 1;

  for(var prop in pollVotes[pollId]){
    if(pollVotes[pollId][prop]>=currentPercent){
      var obj = document.getElementById('result_voteTxt' + prop);
      obj.innerHTML = currentPercent + '%';
      obj.style.width = Math.max(graphMinWidth,Math.round(currentPercent/100*graphMaxWidth)) + 'px';
    }
  }
  if (currentPercent<100)slideVotes(pollId, currentPercent);
  else return true;
}


function prepareForPollResults(pollId)
{
  document.getElementById('poller_waitMessage' + pollId).style.display='block';
  document.getElementById('poller_question' + pollId).style.display='none';
}


function castMyVote(pollId,formObj)
{
  var elements = formObj.elements['vote[' + pollId + ']'];
  var optionId = false;
  for(var no=0;no<elements.length;no++){
    if(elements[no].checked)optionId = elements[no].value;
  }
  Poller_Set_Cookie('dhtmlgoodies_poller_' + pollId,'1',6000000);
  if(optionId){

    var ajaxIndex = ajaxObjects.length;
    ajaxObjects[ajaxIndex] = new sack();
    ajaxObjects[ajaxIndex].requestFile = serverSideFile + '?pollId=' + pollId + '&optionId=' + optionId;
    prepareForPollResults(pollId);
    ajaxObjects[ajaxIndex].onCompletion = function(){ showVoteResults(pollId,ajaxIndex); };
    ajaxObjects[ajaxIndex].runAJAX();    // Execute AJAX function

  }
}

function displayResultsWithoutVoting(pollId)
{
  var ajaxIndex = ajaxObjects.length;
  ajaxObjects[ajaxIndex] = new sack();
  ajaxObjects[ajaxIndex].requestFile = serverSideFile + '?pollId=' + pollId;
  prepareForPollResults(pollId);
  ajaxObjects[ajaxIndex].onCompletion = function(){ showVoteResults(pollId,ajaxIndex); };
  ajaxObjects[ajaxIndex].runAJAX();    // Execute AJAX function
}