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#1
January 31st, 2000, 11:36 PM
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I need to know which is the best way to
make a HTML page refresh from the server sied i.e. when something happens in the server. We use JavaScript, PHP, Java and CGI (Perl). Thanks... ------------------ Luis Argerich. lrargerich@yahoo.com chief developer www.salutia.com
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#2
February 7th, 2000, 09:58 AM
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You can keep most browser's from caching a page by using the meta tag:
<meta http-equiv="pragma" content="no-cache"> (Inserted anywhere between the <head> and </head> tags). Of course this means that every single time a user goes back to that page their browser (most browsers) will be forced to completely re- download everything on that page again -- even if you haven't made any changes. If, on the other hand, you're looking for some way to broadcast content immediately, you're talking about something entirely different. The World Wide Web is based on a "pull" technology where the user must request a Web page before it is sent. If you want to send data to a user without them requesting it you have to use something called "push". More Information: The PointCast site contains news, technical support information and a download link for the PointCast Network, a client program that delivers customized news to your desktop. The Push Channel Resources site offers a complete directory of push channel resources including news, documents, articles, tools, and applications. The Web Broadcasting links page contains a comprehensive listing of Web broadcasting related links, from push technology to streaming media providers and many related articles. TechTools' Coding Push: Javascript vs CDF article is about using the "webcasting" features of IE 4 and Communicator to deliver push content. Desktop News is a free Windows application that pushes customized news to the desktop in a ticker-style display. This article discusses push publishing in the areas of e-mail and corporate intranets and through applications such as PointCast. CNET's Top tips for push programming lists several tips for Internet Explorer, Netscape Netcaster, PointCast, Castanet Tuner, and BackWeb. ZDNet's PushUser Guide is a collection of articles about push technology.
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