A little project need this. (non jQuery)

include an js with parameter, ex: all.js?a=1&b=2&v=1
and you can control all.js with parameter with dymanic js, css
ex: if  v=1, include v1.js realtime. v=2, include v2.js …

• Passing JavaScript arguments via the src attribute - step1. pass js params.
  or how-to-pass-params-to-javascript-file
• dynamically-including-javascript-and-css-files - step2. dymanic include js,css
• make your $ - step3, make your $ (Prototype function $)

now, you can do anything, that you want to do. 

others read.

• Remotely called JavaScript with local configuration
• Query catching for fun and profit
• greeking
• select-functions

that’s it!