Handling Exceptions

[bib_lucene bib]

Hi All
   
  In my struts based web application how do I handle exceptions. I just want to 
display a message to the user, and on clicking "ok"  I want to take himm to the 
index page of web application.
   
  Can some one please point me to an example of how to do this.
   
  Thanks
  bib/-

                
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