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    <p>IE 8 will support the <a href="https://msdn.microsoft.com/en-us/library/cc304129%28VS.85%29.aspx#status_improvements%29" rel="noreferrer">window.navigator.onLine</a> property.</p> <p>But of course that doesn't help with other browsers or operating systems. I predict other browser vendors will decide to provide that property as well given the importance of knowing online/offline status in Ajax applications.</p> <p>Until that happens, either XHR or an <code>Image()</code> or <code>&lt;img&gt;</code> request can provide something close to the functionality you want.</p> <p><strong>Update (2014/11/16)</strong></p> <p>Major browsers now support this property, but your results will vary.</p> <p>Quote from <a href="https://developer.mozilla.org/en-US/docs/Web/API/NavigatorOnLine.onLine" rel="noreferrer">Mozilla Documentation</a>:</p> <blockquote> <p>In Chrome and Safari, if the browser is not able to connect to a local area network (LAN) or a router, it is offline; all other conditions return <code>true</code>. So while you can assume that the browser is offline when it returns a <code>false</code> value, you cannot assume that a true value necessarily means that the browser can access the internet. You could be getting false positives, such as in cases where the computer is running a virtualization software that has virtual ethernet adapters that are always "connected." Therefore, if you really want to determine the online status of the browser, you should develop additional means for checking.</p> <p>In Firefox and Internet Explorer, switching the browser to offline mode sends a <code>false</code> value. All other conditions return a <code>true</code> value.</p> </blockquote>
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    1. USGrant Wagner
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    1. COnavigator.onLine is part of HTML5 -- other browsers already have development versions that provide it -- it's already available in Firefox 3 today.
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    2. CO-but unfortunately not available in earlier versions of IE, which we're often required to support.
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    3. COnavigator.onLine shows the state of the browser and not the actual connection. So u can have ur browser set to be onLine but it would actually fail because the connection is down. navigator.onLine will only be false if the browser is set to offline browsing.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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