Dynamics CRM 2011 jquery errors

Couple common jquery errors when playing with jquery in dynamics CRM 2011;

jquery Access Denied
When running the jquery script on a machine outside the development domain you get:
Access is denied.

>To resolve this, add the site URL to one of the IE zones and enable the following setting for that zone:

jquery '$' is undefined

'$' is undefined

>This issue is quite simple to resolve but can happen when you add web resouces in a different order. the Jquery webresource needs to be on top of the custom scripts that reference jquery syntax. when the scripts are executed the jquery library must have been loaded prior to the scripts execution, only then CRM 2011 will recognize the syntax.