var serverSideFile = 'includes/voto.php';
var voteLeftImage = 'imagens/graph_left_1.gif';
var voteRightImage = 'imagens/graph_right_1.gif';
var voteCenterImage = 'imagens/graph_middle_1.gif';

var graphMaxWidth = 130;	// It will actually be a little wider than this because of the rounded image at the left and right
var graphMinWidth = 15;	// Minimum size of graph
var pollScrollSpeed = 5;	// Lower = faster
var useCookiesToRememberCastedVotes = true;	// Use cookie to remember casted votes
var txt_totalVotes = 'Total de votos: ';

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


/* Preload images */

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,'');
	   
	   //alert(xml)
	
	   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='result_pollerTitle';
       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.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.innerHTML = '0%';
					 //numberDiv.innerHTML = value +'voto(s)';
					 
					 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 totalVoteP = document.createElement('P');
	   totalVoteP.className = 'result_totalVotes';
	   totalVoteP.innerHTML = '<font class="enquete">'+txt_totalVotes + totalVotes[pollId]+'</font>';
       /*enquete encerrada*/
       //totalVoteP.innerHTML = '<font class="enquete">'+txt_totalVotes + totalVotes[pollId]+'</font><br /><br /><font class="enquete" style="color:#CC0000"><b>Enquete encerrada</b></font>';
         
	   voteDiv.appendChild(totalVoteP);	
	   setPercentageVotes(pollId);
	   slideVotes(pollId,0);
}

function setPercentageVotes(pollId)
{
	for(var prop in pollVotes[pollId]){
		if(prop != 'contains'){
		   pollVotes[pollId][prop] =  Math.round( (pollVotes[pollId][prop] / totalVotes[pollId]) * 100);				
		}
	}	
	
	var currentSum = 0;
	
	for(var prop in pollVotes[pollId]){
		if(prop != 'contains'){
		   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)setTimeout('slideVotes("' + pollId + '","' + currentPercent + '")',pollScrollSpeed);
}


function prepareForPollResults(pollId)
{
    document.getElementById('form_enquete').style.display='none';	
	document.getElementById('poller_waitMessage' + pollId).style.display='block';
    document.getElementById('poller_waitMessage' + pollId).innerHTML = '<br /><br /><br /><p style="text-align:center;"><font class="enquete">Aguarde...</font></p>';
	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('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); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		
	
	
}