When using object.extendObject, how do you call the parent initialize function?

[Community Alums]

This seams to work:

var Parent = Class.create();
Parent.prototype = {
    initialize: function(a) {
		this.a = a;
		this.b = "B";
		gs.info("parent initialize, a = " + this.a + ", b = " + this.b );
    },
    type: 'Parent',
	doIt: function() { gs.log("Parent: Do IT"); },
	sayHello: function() { gs.log("Hello"); }
	,
};



var Child = Class.create();
Child.prototype = Object.extendsObject(Parent, {
    initialize: function() {
		Parent.prototype.initialize.call(this, 3);
		this.a = 5;
		gs.info("child initialize, a = " + this.a + ", b = " + this.b );
    },

    type: 'Child',
	doIt: function() { gs.log("Child: Do IT"); }
});

var c = new Child();
c.doIt();
c.sayHello();