Focus and Tab Key Issue

Once again I got stuck in a major problem please help me.
I am using Math Info Editor with in a Flex project and on a button click I load 
it's swf. The Editor works fine but my main application combo box
doesn't behave properly after that. Sometimes drop down of a parent combo box 
appear properly sometimes not. I think the problem arising because you are 
extending Combo box with your own custom class but I am not sure about that. 
After pressing Tab the application also gets stuck.
How to remove or toggle focus completely from Math Info editor? I checked the 
older and latest release of 22nd June. The problem exist in both versions.
File has been attached for your reference.
Please sort it out. Rest is excellent.

Regards,
Faiz

Original issue reported on code.google.com by faizra...@gmail.com on 5 Jul 2010 at 5:46

Attachments:

MathML_1.rar

pupsnow / mathmleditor

Focus and Tab Key Issue #17