Need help on multiple file uploads using <rich:fileUpload>?.

     Q) How to use 'clear' and 'clear All' buttons to remove uploaded files at server side(i.e when I click on these buttons both times only 'onclear' event is getting fired.

          How can I remove a single file at server side when i click on 'clear' button and all uploaded files at server side when i click on ''clear all' button' )?

Versions using are:

               RichFaces 3.3.2

               JSF 1.2

any help would we appreciated in advance.