The WIDTH defines the TOTAL WIDTH of the "span" of the buttons.
The "buttons" value = the NUMBER of buttons in the span.
The "color" value = the COLOR of the buttons.
The "parameters" beginning with the "f_" describe attributes of the FONT used for the text of the buttons.
The "font" = the type of font used.
The "label" = the TEXT label on the button.
The "link" = the HTML link to a URL.
As I have more time to experiment I will add to this description of the "parameters."
To use the "button.class" applet in a FRAMES setup see this example.
This is the HTML coding used on this page for the above "buttons." You should "copy & paste" this code into your document after uploading the "button.class" applet to your directory.