// Quiz Javascript
// copyright 5th December 2004 - 22nd December 2005, 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 qsParm = new Array();
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['questnum'] = 0;
qsParm['cor'] = 0;
qs();
var questnum = qsParm['questnum'];
var cor = qsParm['cor'];cor=cor%53;

function checkAnswer(e,b,g){
var a = -1; var x = (b%5) + 2;
for (var i=0; i<e.c.length; i++) {if (e.c[i].checked) {a = i;}}
if (a == -1) {
alert("You must select an answer");
return false;
}
var b = (g%x);
var f = quiz[questnum].split('~');
if (a == b) {cor++;}
else {alert('Incorrect\nThe Correct Answer is '+f[b+3]);}
var www = self.location.href.lastIndexOf('?');
var thispage = self.location.href;
if (www != -1) thispage = self.location.href.substr(0,www);
questnum++;
var p = Math.floor((Math.random() * 8) + 2);
var m = (p * 53) +cor;
top.location = thispage + '?questnum='+ questnum +'&cor='+m;
return false;
}

var tblsz = quiz.length;
document.write('<table align="center" cellpadding="3" width="350" border="1" style="clear:both"><tr>');
if (questnum < quiz.length) {
var f = quiz[questnum].split('~');
document.write('<td align="left"><form name="myForm"><div style="font-size:14px;">Question: '+f[2]+'</div><blockquote><span style="font-size:12px;">\n');
document.write('<input type="radio" name="c" value="0" /> '+f[3]+'<br />\n');
document.write('<input type="radio" name="c" value="1" /> '+f[4]+'<br />\n');
if (f[5] != '') document.write('<input type="radio" name="c" value="2" /> '+f[5]+'<br />\n');
if (f[6] != '') document.write('<input type="radio" name="c" value="3" /> '+f[6]+'<\/span><\/blockquote>\n');
document.write('<div align="right"><input type="button" value="Next Question" onclick="checkAnswer(myForm,'+f[1]+','+f[0]+');return false;" /><\/div><\/form>\n');
} else {
document.write('<td align="center">\n');
document.write('<div style="font-size:14px;"><b>You have completed the quiz.<\/b><\/div><blockquote><span style="font-size:12px;"> <br \/>You scored ' + cor + ' answers correct out of ' + tblsz + '.<br \/> <br \/> <br \/><\/span><\/blockquote>');}
document.write('<\/td><\/tr><\/table>\n');