Selenium a Functional Testing tool

I think u already heard about a testing tool called "Selenium" from "Thought Works".A good tool consisting of three major components

1. Selenium IDE

2.Selenium Remote Control(RC)

3.Selenium Grid

A good tool used for regression testing.

The options provided by IDE are very flexible and make testers job easy while testing.

Refer the link http://seleniumhq.org/ for more details on selenium.

Download the 3 components from the downloads tab and go through the Documentation,then selenium is in ur hands.