What does a double percentage sign (%%) mean in JavaScript?
<p>To give a little context, I am working with BigCommerce theme template files right now, and I do not understand some of the syntax.</p>

<p>They use a double percentage sign to wrap certain things in the document. An example: </p>

<pre><code>&lt;!-- Include visitor tracking code (if any) --&gt;
%%GLOBAL_TrackingCode%%
%%GLOBAL_DesignModeStyleSheet%%
%%GLOBAL_HeaderImageStyle%%
</code></pre>

<p>They will also be included in source attributes sometimes, like this:</p>

<pre><code>&lt;script type="text/javascript" src="%%GLOBAL_TPL_PATH%%/js/imagesLoaded.js"&gt;&lt;/script&gt;
</code></pre>

<p>I can't for the life of me figure out what the %% means.</p>

<p>Hopefully that will give enough info to answer the question, if anything else is needed let me know. If this is not a JavaScript thing like I assumed, feel free to move it to the appropriate category.</p>

<p>Thank you in advance!</p>