accessing methods and properties on an object of a passed element

accessing methods and properties on an object of a passed element

I hope i can explain what i need better than the subject.

I have an object on the document element that allows for other components to register with it, i have a custom event something along

$(document).bind("register",function(thechild).....

So in the child object when they are created i call

$(document).trigger("register",this);

And indeed i get the DOM object. However i'm looking for the plug in object, i want to be able to call methods on the passed childobject and access it's Config.

Does that make sense? How can i write a plug in that is applied to various objects that also registers itself with an 'overseer' object on the document element in such a way that i can allow that overseer object to call methods on any registered child objects?

any help or pointers would be very much appreciated!

thanks