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Connection check 2

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peacecodotnet

peacecodotnet

Programmer
May 17, 2004
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Is there a way to tell with Javascript whether a user is online? Obviously this is going to be running on a page that is saved locally.

Any help would be greatly appreciated!

Peace out,
Peace Co.
 
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If the page is run locally, what user are you wanting to check on? Surely not the person who opened the page? [smile]

-kaht

Do the chickens have large talons?
[banghead]
 
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I modified my FAQ on how to get the dimensions of an image client-side, and came up with this neat trick:

Code: 
<html>
<head>
	<script type="text/javascript">
	<!--
		var tempImage;

		function checkOnlineStatus() {
			var tempImage = new Image();
			tempImage.onload = returnOnlineStatus;
			tempImage.onerror = returnOfflineStatus;
			tempImage.src = '[URL unfurl="true"]http://www.google.co.uk/intl/en_uk/images/logo.gif';[/URL]		// this must point to the url of a valid image
		}

		function returnOnlineStatus() {
			document.getElementById('onlineStatus').firstChild.nodeValue = 'You are currently online.';
		}

		function returnOfflineStatus() {
			document.getElementById('onlineStatus').firstChild.nodeValue = 'You are currently offline.';
		}

	//-->
	</script>
</head>

<body onload="checkOnlineStatus();">
	<div id="onlineStatus">Checking online status, please wait...</div>
</body>
</html>

It has been tested working in IE 6, FF 1, NN 7.1 (both online and offline statuses).

Hope this helps,
Dan


[tt]D'ya think I got where I am today because I dress like Peter Pan here?[/tt]
[banghead]
 
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Blah. I had to disable my wireless connection to test this. The first time I've been offline since forever! ;o)

Dan
 
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Heh, I misread the question. After seeing dan's repsonse it's so clear now :)

-kaht

Do the chickens have large talons?
[banghead]
 
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Thanks so much for all your work! I never would've got this myself. Thanks again!

Peace out,
Peace Co.
 
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