HTMLSelectElement03
NIST
The selectedIndex attribute specifies the ordinal index of the selected
option. If no element is selected -1 is returned.
Retrieve the selectedIndex attribute from the second SELECT element and
examine its value.
Per http://www.w3.org/TR/html401/interact/forms.html#h-17.6.1,
without an explicit selected attribute, user agent behavior is
undefined. There is no way to coerce no option to be selected.
Mary Brady
2002-02-22