#!/usr/local/bin/tclsh8.3
puts "Content-type: text/html\n\n"
puts {
Web application 'monitor' demonstration
Replace me.
[Show source code, explain DOM principles, ...]
You need IE 5.5, Netscape 6, latest (?) Galeon, or Mozilla 0.9.5,
or greater, to see this effect. It is not available to
current Opera, although there's discussion of its presence in a
future release.
It's not just textual display elements that can be updated this
NO-REFRESH (to use the Macromedia
rubric) way. Graphical ...
This demonstration brought to you by Phaseit, Inc.
}
puts {
}
flush stdout
while 1 {
after 1000
puts ""
flush stdout
}
echo
# http://www.rlenter.com/stuff/server-monitor.html
# CSS 2--Opera?
# I've never found a good single source for this and have not bookmarked
# anything. Most references will only point out differences between
# Netscape/Mozilla and IE. I can find no useful documentation on the
# Opera web site.
# The only mode in which I have done this in the past was for JavaScript
# roll-overs, like this one taken from my page at
# http://www.astrofoto.org/constellations/uma.html:
#
# 
# The trick is you need to name the image. There are other tricks I
# have seen which involve preloading all the images into an array so
# they can be swapped faster. This improves performance with some
# browsers. In principle, if the URI expiration is some time in the
# future the browser shouldn't reload (but that is dependent on the
# browser settings), but some do anyway.
# Right. Opera doesn't support anything that involves changing the
# text-flow in a document after it has been rendered. You can hide DIVs
# and make them visible, and even move them around, but you can't
# dynamically fill them or change the textual content. Except for the
# content of some form elements, as these don't affect the text flow.
#
# See http://www.opera.com/docs/specs/ for more details.
#
# Opera 7 (or whatever it will be called) is being worked on, which will
# allow dynamic insertion etc.