How to implement Help in Swing Application

Hi..
In my Swing Application I want to put �Help� for Every field..
Ex: After Username field ��� if I press �Whatisthis�. I will explain abt the user name field .in a popup text Area
Thanks
Cheers
Mallik

this may help you...
http://java.sun.com/products/javahelp/
regards
Aniruddha

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