Jquery failure after site went live
<p>EDIT: posted head code
EDIT 2: clarification on php</p>

<p>I have been designing a site for weeks using JQuery.  I don't have a local server or a testing server so I just created a directory through FTP, '/testing'.  Everything was working great in the testing directory.</p>

<p>I attempted to go live tonight by moving all the files in '/testing' to the root directory and I changed all file paths and script sources accordingly.  The site loads, but everything related to JQuery is non-functional.  Javascript console gives errors of (just as an example from a plugin):</p>

<blockquote>
  <p>'$.os.name' is not a function</p>
</blockquote>

<p>I'm at loss for what to do.  I changed the paths referencing the JQuery library, installed a fresh copy of JQuery (to a new directory), etc.</p>

<p>There is a wordpress installation in a different directory '/blog'.  I've read about some compatibility issues with wordpress, but that seems to be related to using JQuery <em>inside</em> wordpress, which I am not.</p>

<p>Here is the head code:</p>

<pre><code>&lt;head&gt;  
&lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt;  
&lt;link href="main.css" rel="stylesheet" type="text/css"&gt;  
&lt;link href="jquery.lightbox-0.5.css" rel="stylesheet" type="text/css"&gt;  
&lt;script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"&gt;&lt;/script&gt;  
&lt;script type="text/javascript" src="jq.browser.js"&gt;&lt;/script&gt;  
&lt;script type="text/javascript" src="compatible.js"&gt;&lt;/script&gt;  
&lt;script type="text/javascript" src="nav.js"&gt;&lt;/script&gt;  
&lt;script type="text/javascript" src="jquery.lightbox-0.5.js"&gt;&lt;/script&gt;  
&lt;script type="text/javascript"&gt;  
$(function() {  
$('a.lightbox').lightBox();  
});  
&lt;/script&gt;  
&lt;title&gt;Pearce Images&lt;/title&gt;  
&lt;script type="text/javascript" src="slider.js"&gt;&lt;/script&gt;  
&lt;link href="slider.css" rel="stylesheet" type="text/css"&gt;  
&lt;/head&gt;
</code></pre>

<p>It's worth noting that all the pages are in PHP.  I'm not a PHP developer, I only use 1 function: require_once('some.file.php'). (sorry for no code markup, but I just can't get a handle on this markdown thing).  I just use that to pull the same code for a header and footer for all the pages, that way if changes need to be made, I only have to change one chunk of code.</p>

<p>Your help is greatly appreciated.</p>
