Implement multicast events, property setters/readers in JavaScript

I did an interesting experiment. Most people on the Internet use function (similar to person.getName(), person.setName()). Of course, this is a general approach.

But in non-IE browsers, you can try running the following code:

view sourceprint?function Person()

{

var _name

,_age,_sex;

var _nameChanged = new Array ();

this.__defineGetter__(NameChanged,function()

{

return _nameChanged;

});

this.__defineSetter__(NameChanged,function(value)

                                                                                               value);

});

this.__defineGetter__(Name,function()

{

return _name;

});

this.__defineS etter__(Name,function(value)

{

                                                                                                           f](value); );

{

_age = value;

});

}

Person.prototype =

{

get Sex()

{

return _sex;

},

set Sex(value)

{

_sex = value;

}

};

var person = new Person();

person.NameChanged = function()

{

alert(Event 1);

}

person.NameChan ged = function( )

{

alert(Event 2);

}

person.Name = Treenew;

person.Age = 22;

person.Sex = Man

alert(The + person.Name + Age is + person.Age + . The Sex Value is + person.Sex);

alert(person._sex); //undefined

So, using javascript to implement object-oriented properties and events is also very elegant things. But regarding the multicast incident, do you have any good ideas?