[Eeglablist] event sorting

[Brion Woroch]

Hello EEGlab users,
I have a dataset imported from BioSemi.  I have two events per trial  
that, a stimulus and a response that follows 2-3 seconds after the  
stimulus that indicates a correct or incorrect answer.  My question  
is how do I sort my stimulus events based upon the subsequent  
response type (ie. correct versus incorrect trials)?
Any help is greatly appreciated.
Regards,
Brion Woroch