LinuxQuestions.org - JavaScript: Changing a class property

I was learning about OOP in JavaScript and I wrote this little script that defines an object, Robot, with a class property, a prototype property, and one prototype function. And a constructor, of course.

Code:

<script type="text/javascript">

<!--



// Class property

Robot.threeLawsSafe =  true;



// Prototype property

Robot.prototype.model = "BR-111";



// Prototype function

Robot.prototype.info = function() {

  with(document) {

    write("Name: " + this.name + "<br />");

    if(this.threeLawsSafe) {

      write("This robot is safe for the whole family.<br /><br />");

    }

    else {

      write("This robot might kill you and your whole family.<br /><br />");

    }

  }

}



// Robot Constructor

function Robot() {



}



// First Robot

var iRobot  = new Robot();

iRobot.name = "James";

iRobot.info();

// Robot.threeLawsSafe should still be set to true... but it's not. ??



// Second Robot

var evilRobot = new Robot();

evilRobot.name = "Matador";

// Robot.threeLawsSafe is now set to false

Robot.threeLawsSafe = false;

evilRobot.info();



// Print the status of the first Robot

iRobot.info();

// Robot.threeLawsSafe is understandably false now.



//-->

</script>

I expected the output to be the following

Code:

Name: James

This robot is safe for the whole family.



Name: Matador

This robot might kill you and your whole family.



Name: James

This robot might kill you and your whole family.

My reasoning was
1. Define object
2. Create first Robot, James, and print out his information.
3. Create a second robot, Matador, and override the class property Robot.threeLawsSafe to false.
4. Print out its information
5. Print out the 1st robot's info and the class property would be changed as well.

Instead, I got this

Code:

Name: James

This robot might kill you and your whole family.



Name: Matador

This robot might kill you and your whole family.



Name: James

This robot might kill you and your whole family.

It seems that before it even printed out the first object's info the second object already changed the class property Robot.threeLawsSafe to false.

Why? How do I make the script wait till the first object prints out his stuff before changing threeLawsSafe?

Thanks in advance.

<edit>
I just changed something [ever so tiny] in the script to make it more legible. It's the same script though.
</edit>