How can I make a static field in Javascript

I have an object in Javascript like
this:

var Person = {name: "John",
            age:37}

I
would like that the name will be statically accessible every time I make a new instance
of the class while the age will always be
new.

So for
example:

var per1 = new
            Person();

Person.name = "Anton";
Person.age =
            11;


per1.Name //Anton
per2.Name
            //11

var per2 = new Person();

per1.age
            //Anton
per2.age //37
            ????

Is
there a way to make it so that it works that way?

Answer

In order to make a propery static in
javascript you can use
prototype:

Person.prototype.name =
"Anton"

UPDATED:

You
might want to use it this
way:

var Person =
            function(age){
 this.age=age; 
}
Person.prototype.name =
            "Anton"
var per1 = new
            Person(12);
console.log(per1);