Hey Nikhil,
If you choose 2 use Mozilla, you cud try this out: http://adblock.mozdev.org/
You cud also optionally choose to write a small CSS file to do it yourself. The following link will get yah started: http://www.oreillynet.com/pub/a/network/2000/06/30/magazine/mozilla_styleshe...
To learn more bout "Creating Applications with Mozilla" you can read the O'Reilly Open Book with the same name, available online under the terms of the Open Publication License @ http://books.mozdev.org/chapters/index.html
San