var ans = new Array;
var yourAns = new Array;
var total = 8;
var score = 0;

ans[1] = "False";
ans[2] = "True";
ans[3] = "False";
ans[4] = "True";
ans[5] = "True";
ans[6] = "False";
ans[7] = "False";
ans[8] = "False";

function grading(question, answer) {
  yourAns[question]=answer;
}

function showscore(){
  var answerText = "Answers\n------------------------------------\n";
  for(i=1;i<=total;i++){
     answerText=answerText+"\nQuestion "+i+":";
     if(ans[i]!=yourAns[i]){
       answerText=answerText+"  Not correct. The answer: \""+ans[i]+"\"\n";
     } else{
       answerText=answerText+"  Correct! \n";
       score++;
     }
  }
  answerText=answerText+"\n------------------------------------\nYour total score is : "+score+"\n";
  alert(answerText);
}