twSpaceText( Texts, wL, wR )
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     Space an array of text information in a horizontal line.  This
     function derives from a similar one by Rick Spence.

     twSpaceText is used in the Alert Class to position the buttons.

       Arguments:

     Texts  - 'A' Array of texts to be spaced.

     wL, wR - 'N' Starting and ending columns of display area.

       Return:

     Array of column positions at which to write texts to the screen.

       Example:

     colArray := twSpaceText( { "One", "Two", "Three", ;
                      "Four" }, 10, 70 )