Java Development Tools

I have several editable table screens, with filter, we are using for administration of the code tables. Randomly when the user saves a change to one of these pages, I get the following errors:

Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2)
Timestamp: Thu, 12 May 2011 19:03:22 UTC

Message: 'comp' is null or not an object
Line: 2
Char: 1
Code: 0
URI: https://host.com:8200/USQ/faces/UIShell?_adf.ctrl-state=18hpr3nx1m_114&_afrLoop=604017041395764

Message: 'undefined' is null or not an object
Line: 3811
Char: 2
Code: 0
URI: https://host.com:8200/USQ/afr/partition/ie/default/opt/boot-11.1.1.4.0-0355.js

Message: 'undefined' is null or not an object
Line: 3811
Char: 2
Code: 0
URI: https://host.com:8200/USQ/afr/partition/ie/default/opt/boot-11.1.1.4.0-0355.js

Message: 'undefined' is null or not an object
Line: 3811
Char: 2
Code: 0
URI: https://host.com:8200/USQ/afr/partition/ie/default/opt/boot-11.1.1.4.0-0355.js

Message: 'undefined' is null or not an object
Line: 3811
Char: 2
Code: 0
URI: https://host.com:8200/USQ/afr/partition/ie/default/opt/boot-11.1.1.4.0-0355.js


It looks like a problem with the javascript and the transaction completed popup window. In trying to research this through the forums, I've though it may be a problem with being able to find the component popup window and since that is generated on the fly, I'm not sure of any way to fix this.

Any help would be greatly appreciated

Thanks,
Michelle