I had been looking at ways to update content of a web page without using any auto refreshing meta.

There's a way to do this using "pushlet" technology, but it's rather complicated (involving Frames, JavaScript, and persistent browser connections).

The idea behind a pushlet is that a hidden frame keeps a long-running HTTP GET going to a server. The server dribbles out JavaScript commands, which get interpreted and executed by the browser as they arrive. These commands invoke JavaScript routines that are embedded in either a parent window or in another frame. Typically, a side-effect of this invocation is to refresh part or all of some visible frame.

This collaboration requires that the server-side keep a long-running connection. Most off-the-shelf web servers will time connections out.

KnowNow, Inc. pioneered this technology (though they didn't invent it). They also recently started a SourceForge project to release some of their code publicly.

A google search on "pushlet" might turn up more usable info.


In reply to Re: update content without refreshing by dws
in thread update content without refreshing by kwtow

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.