[Dynapi-Widgetdev] "Menu" list.js widget fixes

[Alan M. <amu...@ra...>]

Last week, I volunteered (on the help list) to further improve the list 
widget (which I am using as a menu navigator).

I made a few changes and am hoping Robert (or another core developer) can 
check this into CVS.
All my changes are noted with my initials "AM:"

1.  I added the method List.setFont(face, size) to allow a web-developer to 
set a font for the all the list items.

2.  I added a property to List "canDeselectAll" which (when false, the 
default) prevents the user from deselecting the selected item in the 
list.  This property/feature is ignored when in multiMode.  Apart from 
adding and initializing the property, I altered the following list item 
event handler to implement it:
ListItem.listevents.onmousedown = function (e) {
         var o = e.getSource();
         // AM: Prevent the user from deselecting if canDeselectAll is not 
true.
         // Of course multi-mode negates this option:
         if ((o.list.canDeselectAll) || o.list.multiMode || !o.selected) {
                 o.setSelected(!o.selected);
         }
};

3.  I added setFontColor() call in ListItem.setColors().  This is 
essentially a "bug fix".

Apologies for attaching the file (zipped), but I figure that is the easiest 
way to get it to the core developers who can check it into CVS .

To see an example of this list in action (with a very preliminary web 
site), go to:
http://pweb.netcom.com/~amukamal/BWG/BWGFrames.html

Please let me know when my changes are incorporated into the current snapshot.

Thanks!
-Alan
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