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copied!<p>I suspect the problem is that you are not serving jquery-1.7.2.min.js from your server, so the web page is not loading jquery, hence no $. First, try referencing a hosted jquery and see if that fixes your problem.</p> <pre><code><script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script> </code></pre> <p>Although not totally relevant to your problem, if you are building a public website, then it is generally a good idea to reference hosted jquery (and other libs) as your users will probably have a locally cached copy already (thanks to other sites which did the same thing). See <a href="http://encosia.com/3-reasons-why-you-should-let-google-host-jquery-for-you/" rel="nofollow">http://encosia.com/3-reasons-why-you-should-let-google-host-jquery-for-you/</a> for a reasonable explanation of this.</p> <p>Generally, though, you are going to want to serve some static files: your own css and js, images and the like. There are --<a href="http://www.sitepoint.com/serving-static-files-with-node-js/" rel="nofollow">plenty</a>--<a href="http://www.thecodinghumanist.com/blog/archives/2011/5/6/serving-static-files-from-node-js" rel="nofollow">of</a>--<a href="http://fromanegg.com/post/18352790356/how-to-make-a-node-js-static-file-server-part-1" rel="nofollow">posts</a>-- describing how to do this longhand with node, but you may want to look at a dedicated module like this: <a href="https://github.com/cloudhead/node-static" rel="nofollow">https://github.com/cloudhead/node-static</a></p>

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