var numQues = 17;

var answers = new Array(17);
answers[0] = "Entre 950 et 1130";
answers[1] = "Abel Janszoon Tasman ";
answers[2] = "1642";
answers[3] = "Jean-François-Marie de Surville ";
answers[4] = "Marion du Fresne";
answers[5] = "Polynésienne";
answers[6] = "Jean-François Langlois";
answers[7] = "1840";
answers[8] = "1845";
answers[9] = "La guerre du Mât ";
answers[10] = "1870";
answers[11] = "Dumont d'Urville";
answers[12] = "1893";
answers[13] = "Kororareka";
answers[14] = "Wellington";
answers[15] = "3.8 millions";
answers[16] = "Dans l'océan Pacifique ";

function getScore(form) {
  var score = 0;
  var currElt;
  var currSelection;

  for (i=0; i<numQues; i++) {
    currElt = form.elements[i];
    currSelection = currElt.selectedIndex;
    if (currElt.options[currSelection].value == answers[i]) {
      score++;
    }
  }

  score = Math.round(score/numQues*100);
  form.percentage.value = score + "%";

  var correctAnswers = "";
  for (i=1; i<=numQues; i++) {
    correctAnswers += i + ". " + answers[i-1] + "\r\n";
  }
  form.solutions.value = correctAnswers;

}