This will work. If we want to be explicit about it we can do something like this to store the ref to the script element:

```js
var scripts = document.getElementsByTagName( 'script' );
var $tz_script = $(scripts[scripts.length - 1]);
var enable_transbar = $tz_script.data('transbar') == 'on';
```

From http://stackoverflow.com/a/3326554/107114

@alexgibson what do you think about this? Would it be better technically or semantically to do this on the `a#tabzilla` instead? It'd certainly be more straight forward to get a reference to that element, and it is required for all tabzilla installations.

Sorry to be changing my mind around on this @kyoshino. This is really awesome stuff. I just get into an even more perfectionist mode when it comes to tabzilla :)