Connecting to remote hosts in an HTML/Javascript web app -

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i've been thinking of developing web application using html , javascript little while now, i've hit wall during ponderings. want able connect (long-term, not briefly) remote host app, 1 unfortunately not server page requested from.

from i've read, javascript can't support long-term connections, , furthermore won't request anywhere that's not domain page downloaded from. considered hidden java or flash objects, flash seems cost money, , java requires signed applet (and don't know whether it's worth getting signed).

the solution think work using server proxy others (through unsigned java applet?), don't want if can it. realistic option, or there other solutions haven't considered yet?

(i considered asking on 1 of other so-alike sites, stackoverflow seemed apt, since largely programming , design issue.)

after considering own plans application, i've decided go forward server-as-proxy approach. having client handle connections sounded idea @ first, save on server resources, have made other implementation ideas unworkable. sticking strict server-as-proxy model handily solves these , other issues pondering over, suppose that's that!


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