gistfile1.js

var Student;
var students;
var student1;
var student2; 
var i, len, student;

Student = (function() {
  function Student(fname, lname) {
    this.firstName = fname;
    this.lastName = lname;
  }
  return Student;
})();

students = [];
student1 = new Student('Paul', 'Jones');
student2 = new Student('Jane', 'Smith');

students.push(student1);
students.push(student2);

for (i = 0, len = students.length; i < len; i++) {
  student = students[i];
  document.write(student.firstName + ' ' + student.lastName + '<br>');
}