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How to detect internet connection with jQuery?

Posted on 2008-10-31
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Last Modified: 2012-05-05
I am using web services on a web site that can also run in a local machine. Is there any standard way in form of an elegant jQuery script to detect whether the internet connection is available?
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Question by:koleto115
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5 Comments
 
LVL 18

Expert Comment

by:Pawel Witkowski
ID: 22848423
You can try by loading image from internet:

var connection=false;
var image=new Image();
image.src="http://someimageonthenet.com/jpg.jpg";
image.onload=function () {  connection=true; }
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Author Comment

by:koleto115
ID: 22848711
What will happen when the url of the image is change or removed?
Furthermore this is not jQuery call. There should be kind of utility function not related to resource on the internet that can be changed ....
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LVL 18

Expert Comment

by:Pawel Witkowski
ID: 22848866
Nope there is not... jQuery is only a Javscript libary - it iteslf cannot do what javscript cant too. This not have to be image.. but anything that is internet and you sure that it will be there... If someone other got better idea... Then i really curious :)
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Author Comment

by:koleto115
ID: 22848930
There is utilities for detecting the browser, there should be something ...
I know that Ajax makes only http request but ... I am curious too ... ;)
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Pawel Witkowski earned 125 total points
ID: 22849119
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