My search wont run properly.. I type in a name and the search prompt doesn't show again and no data shows up either..

var message = ' ';
var student;
var search;

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}


function getStudentReport (student) {
  var report = '<h2>Student: ' + student.name + '</h2>';
  report += '<p>Track: ' + student.track + '</p>';
  report += '<p>Points: ' + student.points + '</p>';
  report += '<p>Achievements: ' + student.achievements + '</p>';
  return report;
}


while (true) {
  var search = prompt("Search Student records type a name [Jody] ( or type 'quit' to end");
  if ( search === nul || search.toLowerCase() === "quit"){
    break;
  }
  for (var i = 0; i < students.length; i += 1) {
    student = students[i];
    if (student.name === search){
      message = getStudentReport(student);
      print(message);
    }
  }
}