[req] Toggle scripts

[whenever]

I don't know js too but I just came cross this site and think the way it used to dynamically load script might work for you:

Code:

<a href="javascript:document.getElementsByTagName('head')[0].appendChild(document.createElement('script')).setAttribute('src','http://www.karmatics.com/aardvark/loader.js')" title="in-page demo of aardvark">run the demo</a>

I had added it to my bookmarklet collection. How about integrating it into the prox menu?