color_data.zip Conveys two related pieces of information
between a form and a handler. It uses parallel arrays in three ways.
Passes the (shared) index
Passes the name and uses array_search
Passes a concatenation and uses explode
It uses an associative array in a fourth approach. Because the arrays are shared
on form and handler (except the explode method), the arrays are placed in a file that
is "included" in both form and handler.
