function answerCorrect(answer)
{
// declare a variable to hold return value
var correct = false;

// if answer provided is same as correct answer then correct variable is true
if (answer == answers)
correct = true;

// return whether the answer was correct (true or false)
return correct;
}


function buttonCheckQ_onclick() 
{
var answer = 0; // initialize variable answer to 0. This will hold the index of the answer radio button selected (taken from the array called answers)

while (document.frmQuiz.qOption[answer].checked != true) 
{
answer++; // increment through the answer radio buttons until the one that is checked is found
}
answer = String.fromCharCode(65 + answer); // convert the radio button index found by the while loop into a character (uses character codes, 65 is A so if user chooses button 0 then 0+65 = A)

if (answerCorrect(answer) == true)
{
alert("You got it right"); // if the index number of the answer matches the one held in the array answers, display an alert informing the user
}
else
{
alert("You got it wrong"); // if the index number of the selected radio button does not match the one held in array answers, display a different alert
}
window.location.reload(); // refresh the page once the user has clicked Check Answer 
}


// questions and answers arrays will holds questions and answers
var questions = new Array();
var answers = new Array();

questions[0] = new Array; // define question 1 as an array; as the questions are multiple choice so the array for the questions needs to be multi-dimensional

questions[0][0] = "When was ESP founded?"; // text for question 1

questions[0][1] = "1965"; // choices for answer set out as radio buttons on quiz form
questions[0][2] = "1995";
questions[0][3] = "1975";
questions[0][4] = "1985";

answers[0] = "C" // correct answer for question 1 (placed in answers array)


questions[1] = new Array;
// define text and answer for question 2
questions[1][0] = "Which US city did ESP move to from Japan?";

questions[1][1] = "New York";
questions[1][2] = "Los Angeles";
questions[1][3] = "San Francisco";
questions[1][4] = "Houston";

answers[1] = "A";


questions[2] = new Array;
// define question 3
questions[2][0] = "And where did the company relocate to in 1993";

questions[2][1] = "San Francisco";
questions[2][2] = "Chicago";
questions[2][3] = "Los Angeles";
questions[2][4] = "Boston";

answers[2] = "C";


questions[3] = new Array;
// define question 4
questions[3][0] = "How many artists have had signature guitars made for them by ESP";

questions[3][1] = "20";
questions[3][2] = "21";
questions[3][3] = "18";
questions[3][4] = "24";

answers[3] = "D";


questions[4] = new Array;
// define question 5
questions[4][0] = "How long have I been playing guitar for?";

questions[4][1] = "11 years";
questions[4][2] = "7 years";
questions[4][3] = "12 years";
questions[4][4] = "10 years";

answers[4] = "B";


questions[5] = new Array;
//define question 6
questions[5][0] = "How many notes are there on a guitar with a standard-scale neck";

questions[5][1] = "132";
questions[5][2] = "122";
questions[5][3] = "142";
questions[5][4] = "112";

answers[5] = "A";
//--> 
</script>