If you made an update of the form on a disabled field in CRM 2011, after the Save button was pushed you realized that the information wasn't saved.
In CRM 4.0 this was done by:
crmForm.all.[fieldname].ForceSubmit = true;
In CRM 2011 this is done by:
This should force CRM to include the field when updating the record instead of ignoring the update.