// Quiz Javascript
// copyright 29th October 2006, by Stephen Chapman
// permission to use this Javascript on your web page is granted
// provided that all of the code in this script (including these
// comments) is used without any alteration

var perPage = 0;
var n1 = 109;
var n2 = 13;
var qsParm = [];

function qs() {
	var query = window.location.search.substring(1);
	var parms = query.split('&');
	for (var i=0; i<parms.length; i++) {
		var pos = parms[i].indexOf('=');
		if (pos > 0) {
			var key = parms[i].substring(0,pos);
			var val = parms[i].substring(pos+1);
			qsParm[key] = val;
		}
	}
}

qsParm['qnum'] = 0;
qsParm['cor'] = 0;
qsParm['fin'] = 0;
qs();
var qnum = qsParm['qnum'];
var cor = qsParm['cor'];
cor=cor%n1;
var pageLoaded = 0;

window.onload = function() {
	externalPageLoad();   // mert felulirja az external.js onpageloadjat grrr
	pageLoaded = 1;
};

function loaded(i,f) {
	if (document.getElementById && document.getElementById(i) != null) f();
	else if (!pageLoaded) setTimeout('loaded(\''+i+'\','+f+')',100);
}

loaded('quiz'+qpp,loadQuiz);

function loadQuiz() {
	if (qnum>=quizArray.length) displayResult();
	else {
		displayQuiz(ent = document.getElementById('quiz1'),qnum++);
		if ((ent = document.getElementById('quiz2')) && qnum<quizArray.length) displayQuiz(ent,qnum++);
		if ((ent = document.getElementById('quiz3')) && qnum<quizArray.length) displayQuiz(ent,qnum++);
		if ((ent = document.getElementById('quiz4')) && qnum<quizArray.length) displayQuiz(ent,qnum++);
		if ((ent = document.getElementById('quiz5')) && qnum<quizArray.length) displayQuiz(ent,qnum++);
		var newB = document.createElement("button");
/*		newB.style.styleFloat = 'right';
		newB.style.cssFloat = 'right';*/
		newB.onclick = function() { nextPage(qnum); return false; };
		var newTb = document.createTextNode('Tovább...');
		newB.appendChild(newTb);
		ent.appendChild(newB);
	}
}

function displayQuiz(ent,qnum) {
	perPage++;
	var qna = quizArray[qnum].split('~');
	var newF = document.createElement("form");
	var newDq = document.createElement("div");
	newDq.className = 'question';
	newDq.appendChild(document.createTextNode(Number(qnum+1)+ ': ' +qna[2]));
	newF.appendChild(newDq);
	newDq = document.createElement("div");
	newDq.className = 'answers';
	for (var i = 3; qna[i] != null && qna[i] != ''; i++) {
		var newDa = document.createElement("label");
		newDa.htmlFor = 'a'+qnum+i;
		/*@cc_on @if (@_jscript) var newR = document.createElement("<input name='a"+qnum+"'>"); @else */
		var newR = document.createElement("input");
		newR.name = 'a'+qnum;
		/* @end @*/
		newR.type = 'radio';
		newR.id = 'a'+qnum+i;
		newR.value = i;
		newDa.appendChild(newR);
		newDa.appendChild(document.createTextNode(' '+qna[i]+' '));
		newDq.appendChild(newDa);
	}
	newF.appendChild(newDq);
	document.getElementById('quiz'+perPage).appendChild(newF);
}

function displayResult() {
	var newP = document.createElement("p");
	newP.style.textAlign = 'center';
	var newB = document.createElement("b");
	newB.appendChild(document.createTextNode('Gratulálok,'));
	newB.appendChild(document.createElement("br"));
	newB.appendChild(document.createTextNode('befejezted a kvízt.'));
	newP.appendChild(newB);
	newP.appendChild(document.createElement("br"));
	newP.appendChild(document.createElement("br"));
	newP.appendChild(document.createTextNode(qnum + ' kérdésből ' + cor + ' helyes válasz.'));
	document.getElementById('quiz1').appendChild(newP);
	var newC = document.createElement("button");
	/*newC.style.styleFloat = 'right';*/
	newC.onclick = function() { cor = 0; nextPage(0); return false; };
	newC.appendChild(document.createTextNode('Ismétel'));
	document.getElementById('quiz1').appendChild(newC);
}

function checkAnswer(e,b,g,q) {
	var a = -1;
	var x = (b%n2) + 2;
	for (var i=3; document.getElementById(e+i); i++) {
		if (document.getElementById(e+i).checked) {
			a = i-3;
		}
	}
	var c = (g%x);
	return a == c?1:0;
}

function nextPage(qnum) {
	for (var i=qnum-perPage; i < qnum; i++) {
		var qna = quizArray[i].split('~');
		cor += checkAnswer('a'+i,qna[1],qna[0],i);
	}
	var thispage = self.location.href;
	var www = thispage.lastIndexOf('?');
	if (www != -1) thispage = thispage.substr(0,www);
	var p = Math.floor((Math.random() * 8) + 2);
	var m = (p * n1) +cor;
	var nxt = thispage + '?qnum='+ qnum +'&cor='+m;
	if (qnum >= quizArray.length) nxt += '&fin=1';
	top.location.href = nxt;
}