// Norton Quiz Machine Version 2.0
// Released 3/16/01
// Written by Cliff Landesman; modified by Yaching Yu, J.Lucca and Cliff Landesman
// Revised by Cliff 7/18/01
// Revised by Cliff 9/24/01 Fixed 5.0 problem with line that strips out html for email.
// Improved function structure and removed a bug for Opera 5.12.
// Revised by Yaching 7/17/02. Uses CDONTS mailer.asp.
// Revised by Cliff 10/24/02. Automatically adjusts the maximum number of possible questions.
// Revised by Cliff 11/1/02. One line fixed to have style sheet apply to numbering of questions.
// Revised by Cliff 4/21/03. Modified line 104, adding escaped quotes.
// Revised by Cliff 3/26/04. Added hidden variables required for sending student responses to
// database. Added alt tags for images.
// Revised by Cliff 5/12/04. Revised for use with Gradebook. Added checkboxes, book number, chapter number.
// Revised by Cliff. Removed checkboxes.
// Revised by Alejandro 1/05.
// Revised by Cliff 2/10/05. Changed language regarding Gradebook.
// Revised by J.Lucca 3/8/05. Integrated histograms into gradebook. Added HISTOGRAM boolean.
// Revised by Jack 3/13/05. Added background to histograms. Also updated stylesheet to reflect this change
// Revised by Cliff 3/21/05. Modified URL for gradebook in PopUpGradebook()
// The code assumes the following external files:
// quiz_demo.htm (which sets up the frames, contains all the quiz content and calls this script)
// upper.htm
// upper2.htm
// lower.htm
// confirm.htm (usually located in the directory of htm pages for the site)
// quiz_styles.css
// ../images/begin_button.gif (called from lower.htm)
// ../images/quiz_title.gif
// ../images/send_quiz.gif
// ../images/next_question.gif
/**
* Histogram toggle
*/
var HISTOGRAM = false
// All Gradebooks: General settings
var first_try = new Array(number_questions)
var alpha_count = new Array("a", "b", "c", "d", "e", "f", "g", "h", "i", "j")
var my_correct = 0
var my_wrong = 0
var current_q = 0
var answ_html = ""
var CSS_Path = "../../stylesheets/quiz_styles.css"
var Img_Path = "../../images/"
var PostURL="/college/nrl/gradebook/post.asp"
// HISTOGRAM: section/type arrays
var section_correct = new Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
var section_answered = new Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
var type_correct = new Array(0, 0, 0, 0, 0)
var type_answered = new Array(0, 0, 0, 0, 0)
// All Gradebooks: Used for collection score for uploading to database
var responses = new Array();
// All Gradebooks: Toggles/sets ordering of the questions
// Gradebook usually 'y' and histogram 'n'
var randomize_questions = (HISTOGRAM) ? "n" : "n"
randomize()
/**
* Use: Sets the order of the questions for the student.
* Either randomly order the questions from the pool
* or order questions w/o randomizing.
* Gradebook usually 'y' and histogram 'n'
*/
function randomize()
{
order = new Array(number_questions)
if (randomize_questions == "y")
{
pool = new Array(number_questions)
no_remaining = number_questions
// Fill the pool[] for use in random selection
for (i = 0; i < number_questions; i++)
{
pool[i] = i + 1
}
// Set order of questions by filling order[]
for (i = 0; i < number_questions; i++)
{
// Get random number
rand = Math.random() * (no_remaining - 1)
rand = Math.round(rand)
// Pick from pool and assign to order
order[i] = pool[rand]
// Repack pool[], skipping rand pick, and decrement no_remaining
for (j = 0; j < (no_remaining - 1); j++)
{
if (j >= rand)
{
pool[j] = pool[j + 1]
}
}
no_remaining = (no_remaining - 1)
}
}
else // Order questions without randomizing.
{
for (i = 0; i < number_questions; i++)
{
order[i] = i + 1;
}
}
}
/**
* Use: Determines if there are more questions to be answered
* or if it's time to wrap up and present email fields.
*
* write_upper_frame() is used in two ways:
* 1) When a student clicks on begin & the quiz is first loaded,
* upper2.htm calls this function (only thing upper2 does)
*
* 2) Each time student clicks 'next question'
*/
function write_upper_frame()
{
if (current_q < number_questions)
{
choices()
}
else
{
// If no more questions, present email fields.
email()
}
// Make the lower frame blank.
reset_lower()
}
/**
* Use: Writes initial page. Shows intro text, number of questions.
* Allows student to select number of questions.
* Lower.htm calls this function 50 milliseconds after loading.
*/
function write_initial()
{
upper.document.open()
// Intro text, num questions
upper.document.write("" + ""
+ ""
+ ""
+ "")
upper.document.close()
}
/**
* Use: Present multiple choice questions.
* Sets up onclick behavior to call
* score(shown_no, order[current_q], answer for each question)
*/
function choices()
{
// Write top of page
upper.document.open()
upper.document.write("\n")
upper.document.close()
}
/**
* Use: Last question has been answered.
* if HISTOGRAM true show histograms.
* All results posted to /college/nrl/gradebook/post.asp
*/
function email()
{
my_score = (my_correct / number_questions) * 100
my_score = Math.round(my_score);
upper.document.open()
if (HISTOGRAM)
{
// Show histograms for this quiz
histograms()
}
// Hidden form variables
upper.document.write("" + "")
upper.document.close()
// Compile long results (transcript) of student answers, correct answers.
// Used for email version to be sent out and future html transcript display in browser
long_results()
upper.document.form1.first_name.focus();
}
/**
* Called when user clicks 'Your Answers' on last page of quiz.
* email() function assembles the html for this page.
*/
function show_answers()
{
resultsWindow = window.open("", "resultsWindow", "width=400,height=400,scrollbars=yes,resizable=yes")
resultsWindow.document.write(""
+ ""
+ "
Results:
"
+ "
Total number of questions: "
+ parent.number_questions
+ " Percent correct: "
+ my_score
+ "%"
+ answ_html
+ "
")
}
/**
* Use: Collect score for uploading to database.
* if HISTOGRAMs will update section and type counter arrays here.
*/
function score(shown_no, question_no, answer_no)
{
correct = "q" + question_no + "answer"
correct = eval(correct)
choice = alpha_count[answer_no]
review = "q" + question_no + "review"
review = eval(review)
repeat = "repeat = first_try[" + question_no + "]"
repeat = eval(repeat)
lower.document.open()
if (HISTOGRAM)
{
// Update histogram main counter arrays
// that track section and types that have been answered
section_number = "q" + question_no + "section"
section_number = eval(section_number)
type_number = "q" + question_no + "type"
type_number = eval(type_number)
section_answered[section_number] = section_answered[section_number] + 1
type_answered[type_number] = type_answered[type_number] + 1
}
// Collect score for uploading to gradebook database
response_no = shown_no - 1 // start with zero
responses[response_no] = parent.book_no + ":"
+ parent.chapter_no + ":" + question_no + ":"
+ choice + ":" + correct
// We record first try answer for locking radio button
first_try[question_no] = answer_no
// Start score html page
lower.document.write(""
+ "
")
// Student gets only one try per question
if (repeat || repeat == 0)
{
lower.document.write(""
+ "
Sorry, no second guessing.
"
+ "
")
// Lock radio button so it always shows first asnwer
switch_radio = "upper.document.which_choices.quest" + shown_no + "[" + repeat + "].checked =true";
eval(switch_radio)
}
else
// This is the first try
{
if (correct == choice)
{
// Correct answer!
lower.document.write(""
+ "
"
+ "Correct! "
+ review
+ "
"
+ "
")
// Update student's total correct score.
my_correct++
if (HISTOGRAM)
{
// Update histogram 'correct answer' counter arrays
// that record correct section and type answers
section_correct[section_number] = section_correct[section_number] + 1
type_correct[type_number] = type_correct[type_number] + 1
}
}
else
{
// Sorry, incorrect answer
lower.document.write("" + "
"
+ "Sorry, but the correct answer is ("
+ correct
+ "). "
+ review
+ "
"
+ "
")
// Update student's total wrong score
my_wrong++
}
// Next question counter
current_q++
}
lower.document.write("" + "
")
lower.document.close()
}
/**
* Use: Gradebook and Histogram use identical function
* Compile long results (transcript) of student answers, correct answers.
* Prepares two versions:
* 1) html version for future browser display when user clicks transcript.
* html version is displayed from show_answers() function.
* 2) email version for sending out
*/
function long_results()
{
// Include answers.
for (i = 0; i < number_questions; i++)
{
ques = "q" + order[i]
ques = eval(ques)
// Test for an answer
if (first_try[order[i]] || first_try[order[i]] == 0)
{
letter = alpha_count[first_try[order[i]]]
ans = "q" + order[i] + letter
ans = eval(ans)
letter = letter + ") "
}
else
{
letter = "No Answer"
ans = " "
}
correct_ans = "q" + order[i] + "answer"
correct_ans = eval(correct_ans)
correct_ans_words = "q" + order[i] + correct_ans
correct_ans_words = eval(correct_ans_words)
// Create html version of results for presenting to browser.
answ_html += "\n
Question: " + ques
answ_html += "\n Student answered: " + letter + ans
answ_html += "\n Correct answer: " + correct_ans + "\) " + correct_ans_words + "\n"
// Create the email version for sending out.
upper.document.form1.answ.value = upper.document.form1.answ.value + "\nQuestion: " + ques
upper.document.form1.answ.value = upper.document.form1.answ.value + "\nStudent answered: " + letter + ans
upper.document.form1.answ.value = upper.document.form1.answ.value + "\nCorrect answer is: " + correct_ans + "\) " + correct_ans_words + "\n"
}
upper.document.form1.my_score.value = my_score
// Delete all html tags when writing answers for email.
// We can't use ? for nongreedy pattern matching because it trips up IE 5.0.
// We search for > and < instead.
if (window.RegExp)
{
upper.document.form1.answ.value = upper.document.form1.answ.value.replace(/\<[^<]*\>([^<>]*)\<[^>]*\>/g, "$1")
}
upper.document.form1.answ.value = upper.document.form1.answ.value + "\n"
// GRADEBOOK: Update responses for uploading to database.
// upper.document.form1.responses.value=responses
upper.document.form1.responses.value = responses
}
/**
* Use: Checks that student has filled required fields. Called from email()
* Then prepare to email.
*/
function error_check()
{
var error_msg = "-1"
var error_code = -1
// GRADEBOOK: We alway send to gradebook, but never to professor.
var pass_checkbox = 1
// These 2 lines were commented out in the original quiz_gradebook.js.
// if(upper.document.form1.email_responses.checked) {pass_checkbox=1}
// if(upper.document.form1.post_responses.checked) {pass_checkbox=1}
// Get student name
var stu_name = upper.document.form1.first_name.value + " " + upper.document.form1.last_name.value
while (error_code == -1)
{
if (upper.document.form1.first_name.value == '')
{
// GRADEBOOK: Error with first name
error_code = 1
error_msg = "You are required to enter your first name."
break;
}
if (upper.document.form1.last_name.value == '')
{
// GRADEBOOK: Error with last name
error_code = 2
error_msg = "You are required to enter your last name."
break;
}
if (upper.document.form1.stu_email.value == '')
{
// BOTH: Error with student email
error_code = 3
error_msg = "You are required to enter your email addresses."
break;
}
if (upper.document.form1.prof_email.value == '')
{
// BOTH: Error with prof. email
error_code = 4
error_msg = "You are required to enter your professors\'s email addresses."
break;
}
if (pass_checkbox == 0)
{
// GRADEBOOK: Student didn't check either the email or the gradebook checkbox
error_code = 5
error_msg = "You are required to check one of the checkboxes."
break;
}
// If we got here, no errors
error_code = 0
}
// Display outcome
if (error_code == 0)
{
// No errors, email header
upper.document.form1.answ.value = "\nPercent correct: "
+ my_score + "%\n\n"
+ upper.document.form1.answ.value
upper.document.form1.answ.value = "\nNumber of questions: "
+ parent.number_questions
+ upper.document.form1.answ.value
upper.document.form1.answ.value = "\nStudent's email: "
+ upper.document.form1.stu_email.value
+ upper.document.form1.answ.value
upper.document.form1.answ.value = "\nStudent's name: "
+ stu_name
+ upper.document.form1.answ.value
upper.document.form1.answ.value = "\nQuiz name: "
+ parent.book_title
+ upper.document.form1.answ.value
upper.document.form1.submit()
}
else
{
// BOTH: Display error message in lower frame
lower.document.open()
lower.document.write("
Error: "
+ error_msg
+ "
")
lower.document.close()
}
}
/**
* Use: Blank out lower frame. Called from write_upper_frame()
*/
function reset_lower()
{
lower.document.open()
lower.document.write(" ")
my_score = (my_correct / number_questions) * 100
my_score = Math.round(my_score)
lower.document.close()
}
/**
* Use: Function is used for linking to the Gradebook.
*/
function PopUpGradebook()
{
win = window.open("/college/nrl/gradebook/", "Gradebook",
'status=no,scrollbars=yes,toolbar=no,resizable=yes,width=800,height=600');
win.focus();
}
/**
* Use: After last question answered email() function calls histograms()
* for histogram quizzes only.
*/
function histograms()
{
labels = new Array("", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J");
upper.document.write("" + "
Your Total Score: "
+ my_score
+ "%
"
+
// We print the headers.
"
" + // start table 1
"
Sections:
Types:
"
+
// We print the Section titles and data.
"
") // start table 2.0
for (i = 1; i < section_title.length; i++)
{
upper.document.write("" + "
" + labels[i]
+ ")
" + parent.section_title[i]
+ "
" + section_correct[i]
+ " out of " + section_answered[i]
+ "
")
}
upper.document.write(""
+ "
") // end table 2.0; start table 2.1
// We print the Type titles and data.
for (i = 1; i < type_title.length; i++)
{
upper.document.write("" + "
" + labels[i]
+ ")
" + parent.type_title[i]
+ "
" + type_correct[i]
+ " out of " + type_answered[i]
+ "
")
}
upper.document.write("" + "
") // end table 2.1
// We print the Sections histogram.
upper.document.write("" + "
"
+ // start table 2.2
"
" + // start table 3.0
"
"
+ "
"
+ "
") // end table 3.0
for (i = 1; i < section_title.length; i++)
{
section_percent = section_correct[i] / section_answered[i];
section_height = section_percent * 200;
upper.document.write(""
+ "
")
} // start/end tables 3.1
// We add the Section labels.
upper.document.write("" + "
")
for (i = 1; i < section_title.length; i++)
{
upper.document.write("" + "
"
+ labels[i] + "
")
}
upper.document.write("" + "
"
+ // end table 2.2
"
" +
// We print the Type histogram.
// start table 2.3
"
"
// start table 3.2
+ "
"
+ "
"
+ "
"
// end table 3.2
+ "
")
for (i = 1; i < type_title.length; i++)
{
type_percent = type_correct[i] / type_answered[i];
type_height = type_percent * 200;
upper.document.write("" + "
")
}
// We add the Type labels.
upper.document.write("" + "
")
for (i = 1; i < type_title.length; i++)
{
upper.document.write("" + "
" + labels[i] + "
")
}
upper.document.write("" + "
") // end table 2.3 and 1
} // End of histogram function.