//Poll Object Constructor
function PollObj(formId, question, headerText, headerImage, footerImage, voteText) {
	this.formId 		= formId;
	this.domain 		= "/easo";
	this.question 		= question;
	this.optionTag 		= new Array();
	this.optionText		= new Array();
	this.results 		= new Array();
	this.headerText 	= headerText;
	this.headerImage 	= headerImage;
	this.footerImage 	= footerImage;
	this.voteText		= voteText;
}

//Global variables
	var str="";
	var expdate = new Date();
	expdate = new Date(expdate.setFullYear (expdate.getFullYear() + 1));
	var poll = new PollObj();

//poll Setup
function pollSetup(feedType) {
	//initialize the poll Object
	//setup variables
	var headerText = "";
	var headerImage = "";
	var footerImage = "";
	var voteText = "";
	var pollQuestion = "";
	var questions = "";
	var results = "";
	var voteText = "";
	var q = 0;
	  
	if(!xmlDocs[feedType])
		return;
	
	var pollXML = xmlDocs[feedType].xml;
	if(!pollXML)
      return;
	
	var pollErrorTag = pollXML.getElementsByTagName("poll_error");
	if(pollErrorTag.length>0){
		msg = "Currently unavailable <!-- Reason for this error: " + getNodeValue(pollErrorTag[0]) + " -->";
		writeHTML(getElm("pollblock"),msg);
	}else{
		//header text
		headerTextNode = pollXML.getElementsByTagName("header_text");
		headerText = getNodeValue(headerTextNode[0]);
		if( headerText != "") 
			poll.headerText = headerText;
		
		//header image
		headerImageNode = pollXML.getElementsByTagName("header_image");
		headerImage = getNodeValue(headerImageNode[0]);
		if( headerImage != "") 
			poll.headerImage = headerImage;
		
		//footer image
		footerImageNode = pollXML.getElementsByTagName("footer_image");
		footerImage = getNodeValue(footerImageNode[0]);
		if( footerImage != "") 
			poll.footerImage = footerImage;
	
		//form id
		formIdNode = pollXML.getElementsByTagName("formId");
		formId = getNodeValue(formIdNode[0]);
		if( formId != "" )
			poll.formId = formId;
		
		//domain
		domainNode = pollXML.getElementsByTagName("domain");
		domain = getNodeValue(domainNode[0]);
		if( domain != "" ) 
			poll.domain = domain;
		
		//vote text
		voteTextNode = pollXML.getElementsByTagName("vote_text");
		voteText = getNodeValue(voteTextNode[0]);
		if( voteText != "" ) 
			poll.voteText = voteText;
		
		//options node
		questionsNode = pollXML.getElementsByTagName("options");
		for(i=0;i<questionsNode.length;i++) {
	
	   		itemNode = questionsNode[i];
			q = 0;  //question counter
	
			for(j=0;j<itemNode.childNodes.length;j++) {
				if( itemNode.childNodes[j].nodeName == "question" ) {
					poll.question = getNodeValue(itemNode.childNodes[j]);
				} else if( itemNode.childNodes[j].nodeName == "tag" ) {
					poll.optionTag[q] = getNodeValue(itemNode.childNodes[j]);
				} else if( itemNode.childNodes[j].nodeName == "longText" ) {
					poll.optionText[q] = getNodeValue(itemNode.childNodes[j]);
					q++; //increment the counter
				}
			}
		
	   }
	   
	   	//results node
		resultsNode = pollXML.getElementsByTagName("results");
	
		for(i=0; i<resultsNode.length;i++) {
			itemNode = resultsNode[i];
			q = 0;  //answer counter
	
			for(j=0;j<itemNode.childNodes.length;j++) {
				if( itemNode.childNodes[j].nodeName == "choice" ) {
					poll.results[q] = getNodeValue( itemNode.childNodes[j] );
					q++
				}
			}
			
		}
	
		//populate the div with poll data
		if( check_submit() ) {
			populateQuestions();
		} else {
			populateAnswers();
		}
	}
}

// Wait function
function doPollWait(feedType)
{ 
   var pollblock = getElm("pollblock");
   if(!pollblock)
      return;
   var waitHTML = "<div class='headline'>Loading XML...</div>"
   writeHTML(pollblock,waitHTML);
}


function populateQuestions()
{ 
	//setup variables
	var readyHTML = "";
	var voteHTML = "";
	var pollheaderblock = getElm("pollheaderblock");
	var pollblock = getElm("pollblock");
	var voteblock = getElm("voteblock");
	
	if(!pollblock || !voteblock || !pollheaderblock)
		return;
	
	//header text
	if( poll.headerText != "" && poll.headerText != null ) 
		writeHTML(pollheaderblock,poll.headerText);
	
	//header image
	if( poll.headerImage != "" && poll.headerImage != null) 
		readyHTML += "<div class='C_poll header'><img src='"+poll.headerImage+"' border='0' alt=''/></div>";

	//setup forms
	readyHTML += "<form name='pollform'  method='post' action='/framework/_includes/poll_submit.jsp?redr="+escape(location.href)+"'  enctype='multipart/form-data'>";

	//form id
	readyHTML += "<input type='hidden' name='formId' value='"+poll.formId+"'>";
	
	//domain
	readyHTML += "<input type='hidden' name='domain' value='"+poll.domain+"'>";
	
	//question text
	readyHTML += "<div class='C_poll question'>"+poll.question+"</div>";
	
	//question options
	for( i=0; i<poll.optionTag.length; i++ ) {
		readyHTML += "<div class='poll_option'><input id='"+poll.optionTag[i]+"_"+i+"' name='"+poll.optionTag[i]+"' value='"+i+"' type='radio'>&nbsp;";
		readyHTML += "<label for='"+poll.optionTag[i]+"_"+i+"'><span class='formlabel'>"+poll.optionText[i]+"</span></label></div>";
	}
	
	//footer image
	if( poll.footerImage != "" && poll.footerImage != null ) 
		readyHTML += "<div class='C_poll footer'><img src='"+poll.footerImage+"' border='0' alt=''/></div>";
	
	//end form
	readyHTML += "</form>";
	
	//vote text	
	voteHTML += "<a href='javascript:validate_form();'>"+poll.voteText+"</a>";
	
	//write to div
	writeHTML(voteblock,voteHTML);
	writeHTML(pollblock,readyHTML);

}

function populateAnswers() {

	//variables
	var totalresponses = 0;
	var responseHTML = "";
	var pollheaderblock = getElm("pollheaderblock");
	var pollblock = getElm("pollblock");
	var voteblock = getElm("voteblock");
	
	if(!pollblock || !voteblock || !pollheaderblock)
		return;
		
	//do not display voting button.
	voteblock.style.display = "none";
	
	//header text
	if( poll.headerText != "" && poll.headerText != null ) 
		writeHTML(pollheaderblock,poll.headerText);
	
	//header image
	if( poll.headerImage != "" && poll.headerImage != null ) 
		responseHTML += "<div class='C_poll header'><img src='"+poll.headerImage+"' border='0' alt=''/></div>";
	
	//question text
	responseHTML += "<div class='C_poll question'>"+poll.question+"</div>";
	
	//calculate total responses
	for( i=0; i<poll.results.length; i++ ) {
		totalresponses += parseInt( poll.results[i] );
	}
	
	//calculate responses
	for( i=0; i<poll.results.length; i++ ) {
		if( totalresponses != 0 ) {
			responseHTML += "<div class='poll_option'>"+poll.optionText[i]+": <span class='resultPercentage'>"+Math.round((100*poll.results[i])/totalresponses)+"%</span></div>";
		}
	}

	//write out total vote block
	responseHTML += "<div class='totalvotes'>Total Votes: "+totalresponses+"</div>";

	//footer image
	if( poll.footerImage != "" && poll.footerImage != null ) 
		responseHTML += "<div class='C_poll footer'><img src='"+poll.footerImage+"' border='0' alt=''/></div>";
	
	writeHTML(pollblock,responseHTML);
	
}

/*
function submitPoll() {
	var xmlRequest = null;
	var ref = "poll";
	if (window.XMLHttpRequest)  {
		xmlRequest = new XMLHttpRequest();
	 }
	 else if (window.ActiveXObject) {
		xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
	 }
	 
	 if (xmlRequest){
		if (!xmlDocs[ref]) {
			xmlDocs[ref] = new Object();
		}

	formValues = "formId=5181&domain=/easo&";
	
	for(i=0;i<document.forms['pollform'].poll_question.length;i++) {
		if( document.forms['pollform'].poll_question[i].checked ) {
			formValues += "poll_question="+document.forms['pollform'].poll_question[i].value;
		}
	}
	
	alert("form values = " + formValues );
	//alert(xmlDocs[ref]);
	
	if(!xmlDocs[ref].requestObj){
		xmlDocs[ref].requestObj = xmlRequest;
		xmlDocs[ref].onWait = function(){doPollWait('polldata')};
		xmlDocs[ref].onLoad = function(){doPollReady('polldata')};
	}
	
		xmlDocs[ref].requestObj.open('POST', '/framework/_includes/poll_submit.jsp', true);
		xmlDocs[ref].requestObj.onreadystatechange = function(){processReqChange(ref)};
		xmlDocs[ref].requestObj.setRequestHeader('Content-Type', 'multipart/form-data');
		xmlDocs[ref].requestObj.send( "" );
	 }
}
*/



function getCookie (name) { 
	var dcookie = document.cookie;
	var cname = name + "=";
	var clen = dcookie.length;
	var cbegin = 0;
	while (cbegin < clen) { 		
		var vbegin = cbegin + cname.length;
		if (dcookie.substring(cbegin, vbegin) == cname)  {  
			var vend = dcookie.indexOf (";", vbegin);
			if (vend == -1){ 
				vend = clen;
			}
			return unescape(dcookie.substring(vbegin, vend));
		}  
		cbegin = dcookie.indexOf(" ", cbegin) + 1;
		if (cbegin == 0) break;
	}  
	return null;
}  
  
function setCookie (name, value, expires) { 
	document.cookie = name + "=" + escape (value) + ";expires=" + expires + "; path=/";
}   

function check_submit() 
{
	var check_submit = false;
	var nHits = eval(getCookie(poll.formId));	
	if(nHits == null){ 
		check_submit = true; 
	}else{
		check_submit = false; 
	}	
	return(check_submit);
}


function validate_form() {
	var len= document.pollform.length;
	var validate=false;

	for(var i=0;i<len;i++){
		if(document.pollform.elements[i].checked){
			validate= true;
		}
	}
	
	if( validate ){
		//setCookie ('<c:out value="${form.formId}"/>', 1, expdate);
		setCookie (poll.formId, 1, expdate);
		document.pollform.submit();
	} else {
		alert( "Please select an option before you click vote.");
	}

}