[Javascript] Changing single click on listboxes to ctrl-click

[Ben Curtis]

> Try this out. This may solve your problem.
>
> attached: MultipleSelectByClick.html

This is as good as I could get, too. The only problem with this technique is
that the user cannot unselect an option just by clicking. Even with that
problem, this code is the best you're gonna get.

--
+Ben Curtis

"On the other side of the screen, it all looks so easy."