ImpressCMS has added a preload functionality that allows you to automatically load scripts and I have adapted Scripturizer to work as a preload. Now, I can switch themes, or allow users to select their own favorite theme, and Scripturizer still does its job.
You can download this preload from our download area for core addons - you'll need ImpressCMS 1.1 for this to work, or you can use the scripturizer.js file in the /libraries/scripturizer/ folder and include the script in your HTML files for your theme.
So, now, references like Matthew 28:19-20 automatically link you to the text on BibleGateway. Look in the /preload folder and open scripturizer.php to see the options available.