what's faster

Hi guys another question from me, primal fear

I want to know what's faster:

possibility nr 1.:

function = someObject()
{
this.constructorFunction = function(){construct something;}
this.someFunction1 = function (){blahblah}
this.someFunction2 = function (){blahblah}
this.someFunction3 = function (){blahblah} this.someFunction4 = function (){blahblah}
this.someVar1 = "asdasd"
this.someVar2 = "asdasD"

this.construct();
}

somename = new someObject;

OR

Possibility 2:

function = createSomeObject()
{
somename.constructorFunction = function(){construct something;}
somename.someFunction1 = function (){blahblah}
somename.someFunction2 = function (){blahblah}
somename.someFunction3 = function (){blahblah} this.someFunction4 = function (){blahblah}
somename.someVar1 = "asdasd"
somename.someVar2 = "asdasD"

somename.construct();
}

createSomeobject();

--------------------------

Please let me know!

Thanks
Primal fear