Defering Javascript - Async

I tried to load javascript async to speed up the page.  I have 10 different scripts on a page and would like to load all of them in async mode so I started beggining with a single javascript.

I'm using this code to load javascript in anync mode but other scripts which are not async stop working when I insert it. I just can't find out why.  

window.onload = function() {
   var s = document.createElement("script");
   s.src = "/js/cont.js";

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Are you following the logic I gave you here

Edited with correct link.

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RobOwner (Aidellio)Commented:
I've requested that this question be deleted for the following reason:

The question has either no comments or not enough useful information to be called an "answer".
Think my link to the other question answers it.
Even if it is a circular reference...
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