ساعدوني وفهموني help me

مساء الخير عليكم
عندي هالسؤال هذا جنن

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هذي الفقرة الاخيره ما فهمت وش المطلوب

(j) suggest another way to change the salary of the Employee instance other than what you have done in g .show the changes needed in the program to implement it and give an example on how you are going to use it

كتبت الكود وعرض لي كذا ما ني عارفه وين هي المشكله
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وهذا هو الكود
<html>
<body>
<scrpit SRC="dateLibrary.js"></scrpit>
<scrpit>
//Creating the object "Emplyee"
function Employee(aName, aDOB, aSalary)
{
   //Properties.
   this.name = aName;
   this.dob = aDOB;
   this.salary = aSalary;
    //Methods.
   this.getName = GetName;
   this.getDOB = GetDOB;
   this.getSalary = GetSalary;
   this.printDetails = PrintDetails;
}
//Implementing the function "getName".
function GetName()
{
   //Returning the name of the employee.
   return (this.name);
}
//Implementing the function "getDOB".
function GetDOB()
{
   //Returning the date of birth of the employee.
   return (this.dob);
}
//Implementing the function "getSalary".
function GetSalary()
{
   //Returning the salary of the employee.
   return (this.salary);
}
//Implementing the function "printDetails".
function PrintDetails()
{
   //Printing all required details of the employee.
   var todayDate = new Date();
   var birthDate = new Date(this.getDOB());
   window.alert("Name: " + this.getName() + "\n" + "Date of Birth: " + dateStringShort(birthDate) + "\n" + "Age: "+ differenceInYears(todayDate, birthDate) + "\n" + "Salary: " + this.getSalary());
}
//Prompting the user to enter his/her data.
aName = window.prompt("Enter your name","");
aDOB = window.prompt("Enter your date of birth","");
aSalary = window.prompt("Enter your salary","");
//Initializing a new "Employee" with user entries.
var newEmployee = new Employee(aName, aDOB, aSalary);
//Printing the details of the employee.
newEmployee.printDetails();
//Asking the employee to change his/her salary.
var aSalary = window.prompt("Enter your new salary","");
//Updating the new details of the employee.
newEmployee.salary = aSalary;
//Printing the details of the employee after his/her saved new entries.
newEmployee.printDetails();
</scrpit>
</body>
</html>