How do I load an external file and make sure that it runs first in JSFiddle?

Question

I have a JsFiddle here, and added Microsoft AJAX to be loaded through external JS/resource section. How can I tell whether or not my JS code is run after the AJAX file has finis

Answer 1

@Jpsy's approach no longer seems to work (see my comment under his answer).

For me, adding the resource under External Resources also didn't work. (According to the Firefox Debugger, it couldn't find the resource).

The only way I was able to get an external bit of JavaScript code (in my case jquery.backstretch.js) to work, was to use Google to find a Fiddle which used this resource (and worked), then Fork this Fiddle and copy/paste all my code into the HTML, CSS and JavaScript panels. Ugh!