use two different versions of jQuery on the same page
By Anatoly Mironov
jQuery is very popular. The chance that you’ll get two or more jQuery files loaded on the same page is very high. As long as it doesn’t conflict, it is fine. But what if there are differences, and another version of jQuery destroys your functionality. To solve it we can ensure that we invoke “our”, the right version of jQuery. To do so, create a pointer to your jQuery:
var myJq = jQuery.noConfict();
```So if you can, avoid invoking $ or jQuery directly. Here is the original example from [jQuery forum](http://forum.jquery.com/topic/multiple-versions-of-jquery-on-the-same-page):