gistfile1.js

Person = {
    instance: function(name, lastname)
    {        
       var base      = this;
       base._private = {}
       base._public  = {}

       base._private.name     = name;
       base._private.lastname = lastname;

       base._public.getName     = function() { return base._private.name; }
       base._public.getLastName = function() { return base._private.lastname; }
        
       return base._public;
    },
    version: '0.0.1'
}

nite_owl   = new Person.instance('daniel', 'dreiberg');
ozymandias = new Person.instance('adrian', 'veidt');

console.log(nite_owl.getName());
console.log(ozymandias.getName());
console.log(Person.version);
console.log(nite_owl);

gistfile2.js

Object.prototype.all = new Array();
Object.prototype.find = function(id) {
    for (var i=0; i < this.all.length; i++)
    {
        if (this.all[i].id == id)
            return this.all[i];
    }
    return null;
}    

// Poor man's ActiveRecord::Base model class in js

Person = {
    type: 'Person',

    build: function(parameters)
    {        
       var base          = this;
       base._private     = parameters;
       base._public      = {};
       base._private.id  = null;

       base._public.new_record    = true;
       base._public.type          = Person.type;
       base._public.name          = function() { return base._private.name; }
       base._public.last_name     = function() { return base._private.last_name; }
       base._public.set_name      = function(value) { base._private.name = value; }
       base._public.set_last_name = function(value) { base._private.last_name = value; }
       
       base._public.save = function() {
           if (base._public.new_record) {
               base._private.id = Person.all.length + 1;
               Person.all.push(base._private);
               base._public.new_record = false;
           }
           return true;
       }

       return base._public;
    } 
}

nite_owl   = new Person.build({ name: 'daniel', last_name: 'dreiberg' });
ozymandias = new Person.build({ name: 'adrian', last_name: 'veidt' }); 
nite_owl.save();
ozymandias.save();

console.log(Person.all);
console.log(Person.find(1));