var correctAnswers = new Array(10);
correctAnswers[1] = "a";
correctAnswers[2] = "c";
correctAnswers[3] = "a";
correctAnswers[4] = "c";
correctAnswers[5] = "a";
correctAnswers[6] = "c";
correctAnswers[7] = "a";
correctAnswers[8] = "d";
correctAnswers[9] = "a";
correctAnswers[10] = "d";