http://help.creator.zoho.com/Field-Actions.html

 "The On User input script will not be called if there is no change in the value of the field (i.e if the new value being set is same as the old value."

This implies to me that I should be able to make a change to a field On Load and expect that field's On User Input to be called.  Through all of my testing I have not been able to make that the case.

How can I make On User Input code be called as a result of changing a value in the form On Load?