jquery - How do I reload a shoutbox's messages whenever any one of the chatroom users posts a message? -

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i'm creating shoutbox using jquery, ajax, , php. know how make message box refresh every 1 second or set time interval, without refreshing rest of page, want have message box refreshed every time of participating chatroom users posts messages. how do this?

or setting refresh rate @ short interval (like 0.2 seconds) better option? (i thinking might hard on server load, text chat box i'm not sure. i'm writing application practice coding skills i'd appreciate general guidance.)

since nature of shoutbox is "listener", there's no real way push update remote webpage without page checking see if update required. check every second should sufficient, wouldn't go more frequent maybe .5 seconds.


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