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6.8

Javascript code to detect loss of internet connectivity

Asked by NeoGemini in JavaScript

Tags: javascript, detect, connection, internet

I am writing a web based chat service much like the one here:
http://code.jenseng.com/jenChat/

My question is this, if you look at that example, it uses a hidden iFrame that auto-refreshes itself then writes any new chat lines it pulls to the main menu, which works great, until the client looses their internet connection. Then the auto-refreshing iFrame turns into a page cannot be displayed error, and no further lines in the chat are displayed since that page is no-longer auto-refreshing. My question becomes what would be the best way to detect that the frame is no longer refreshing and force a reload every 5-10 seconds until the connection resumes itself, then of course the iFrame's own refresh would take over? This has to assume a complete loss of internet connectivity, so I would assume it would be a bit of javascript in the main page that does not auto-refresh, so it would continue to work even if a loss of connectivity is experienced.

Any help in the right direction would be appreciated, thank you!
[+][-]11/19/04 10:17 AM, ID: 12628152Accepted Solution

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About this solution

Zone: JavaScript
Tags: javascript, detect, connection, internet
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Solution Provided By: RAPUTA
Participating Experts: 4
Solution Grade: B
 
[+][-]11/19/04 02:58 AM, ID: 12623729Expert Comment

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[+][-]11/19/04 03:04 AM, ID: 12623779Expert Comment

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[+][-]11/19/04 09:57 AM, ID: 12627942Expert Comment

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[+][-]11/19/04 01:06 PM, ID: 12629971Expert Comment

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[+][-]11/19/04 11:57 PM, ID: 12632477Author Comment

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