Separating DOM Concerns from Application Code

Scope of DOM concerns

Event handling ( DOM to App Code )
Manipulating the DOM ( App Code to DOM )
Reading User Input (Form Fields/DOM to App Code)

Potential Approaches

Backbone + Observer
Plain Object, Monologue + Observer

Example Project

A simple sign up form widget. The following should happen:

The widget manages its own template file and renders it when needed
The widget should support changing a password field into plain text, or back to a password field
The widget should support submitting the data (somewhere)

Notes