I read the code from the sample container. Now, I understand your question: i discovered the inclusion of jquery.js in samplecontainer.html.

My understanding is that no such library (jquery, prototype, etc…) is part of the standard. So, you can definitely not rely on its presence in a productive environment.

But, what you can do is just include it to be sure that it’s then present.

See what I did in http://www.toojoor.com/opensocial/js/google/gadget/ig-check.xml. I start by including the prototype.js library and it works just fine.

Then, I am sure that it’s present
regards
didier

code.google.com/p/opensocial-container-sample/downloads/list

See
opensocial-container-sample.googlecode.com/svn/trunk/samplecontainer.js

where it is stated
* This container serves two purposes.
* (a) To demonstrate how a container can be implemented using a simple
* example.
* (b) To create an environment for easy gadget testing. OpenSocial is all
* about social APIs, which means that gadget testing usually involves
* multiple user accounts. This container makes testing easy by letting
* gadgets specify arbitrary state for any number of users.
*/

So if it is used for goal (b), it will become a reference implementation.

P@