Verify External Script Is Loaded
<p>I'm creating a jquery plugin and I want to verify an external script is loaded. This is for an internal web app and I can keep the script name/location consistent(mysscript.js). This is also an ajaxy plugin that can be called on many times on the page. </p>

<p>If I can verify the script is not loaded I'll load it using:</p>

<pre><code>jQuery.getScript()
</code></pre>

<p><b>How can I verify the script is loaded because I don't want the same script loaded on the page more than once? Is this something that I shouldn't need to worry about due to caching of the script?</b></p>

<p><b>Update: </b>
I may not have control over who uses this plugin in our organization and may not be able to enforce that the script is not already on the page with or without a specific ID, but the script name will always be in the same place with the same name. I'm hoping I can use the name of the script to verify it's actually loaded.</p>
