How is the binding of an input control via JavaScript supposed to work?  Don't I need two pieces of JavaScript code, one to define how to do a Get to load the value and another to do a Set when the value has changed?   When I select this option I only get the option to enter a single piece of code.  Do XPages only support a Get - i.e. this is only really useful for display-only controls such as Labels and Computed Fields?