Options which affect the display of the listbox. These can consist of:
o promoText The text that appears at the the
top of the listbox
Defaults to "Select..."
o indentChar The character to use for indenting
Defaults to " "
o indentNum How many of the indentChars to use
per indentation level
Defaults to 2
o linkTarget Target for the links.
Defaults to "_self"
o submitText Text for the submit button.
Defaults to "Go"