On 16 May 2001, Dave Peticolas wrote:
> I guess auto-completion of transactions is out with a web interface?
> Or maybe you could do it some other way (a list of the most recent,
> maybe?)
Interactive page updates are possible via DHTML although the target fields
should be layers (DIV). My small collection of personal projects are
tested compatitble with NN4+, IE4+ and Mozilla.
Normally all server-side state changes are transmitted via a page load.
If the server can generate async events (eg. another client makes a
change) the page code must "poll" the server. Typically a helper
frame is set up to reload periodically.
I've written a small Java applet that establishes a TCP connection to the
webserver that the page came from. That connection can be used by the
server to send a small amount of information to the client. I've used it
to indicate that a page needs to be refreshed.
Word of warning: the connection is not encrypted.
http://www.projectplasma.com/tattler
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