Remove this.answer and this.support from the question constructor in question.js. Change this:

function question(answer, support, question, a, b, c, d) {
  this.answer = answer;
  this.support = support;
  this.question = question;
  this.a = a;
  this.b = b;
  this.c = c;
  this.d = d;
  return this;
  }

to this:

function question(question, a, b, c, d) {
  this.question = question;
  this.a = a;
  this.b = b;
  this.c = c;
  this.d = d;
  return this;
  }

Notice that variables answer and support have also been removed. Now that you have removed these from the constructor, you can remove them from each call to the new operator in each element of units. In other words, remove the first two arguments from each element in units.

Since the answers and explanations no longer exist, there is no reason to grade the test or display any results. That means you can get rid of function gradeTest(). Just delete lines 66-76 in administer.html. This also means that you can get rid of the call to gradeTest() in buildQuestion() at line 40. Actually, you’ll want to replace it with a call to printResults() so that the user can see his or her answers and the answers can be embedded in an HTML form.

Lines 39-42 are changed from this:

if (qIdx == howMany) {
  gradeTest();
  return;
  }

to this:

if (qIdx == howMany) {
  printResults();
  return;
  }

printResults() is where most of the new work happens. Line 84 in administer.html currently looks like this:

'<BR><BR><FONT SIZE=4>Here is how you scored: </FONT><BR><BR>';

Change it to this:

'<BR><BR><FONT SIZE=4>Here is how you scored: </FONT><BR><BR>' +
'<FORM ACTION="your_server_script_URL" METHOD=POST>';

And replace lines 92-105 with the following:

results += '<INPUT TYPE=HIDDEN NAME="question' + (i + 1) + '" VALUE="' +
  keeper[i] + '"><B><I><FONT>COLOR=GREEN>You chose ' + keeper[i] +
  '</I></B></FONT><BR><BR><BR>';

That removes the decision-making portion of the function that determines whether users answered correctly and then displays the appropriate green or red text. Lastly, line 107 currently looks like this:

results += '

</BODY></HTML>';

Change it to this:

results += '<INPUT TYPE=SUBMIT VALUE="Submit"> </FORM></BODY></HTML>';

Those few changes added opening and closing FORM tags, a uniquely named hidden field with a value of each of the user’s answers, and a SUBMIT button. The FORM tags and the submit button are static, but the hidden fields involve a bit more.

Each answer is written as the value of a hidden field, which is named according to its question number. Iterative variable i is used to create a unique name for each hidden field and also associates the proper question number with the proper user answer. Each time variable i is incremented in the update portion of the for loop (i++), a new hidden field can be made. The fields will follow the pattern of question1, question2, question3, ad infinitum.

The changes in printResults() still display the questions, four choices, and the user’s answers. The test isn’t graded, however. All the user has to do is choose “Submit” to send the answers off for a grading.