tab movement using java.

Hi
How to make tab movement, click, entering text in other website. my ultimate aim is to write a program which makes me to login(Sign in ) automatically in the website like yahoo,rediffmail and all.

Please help me .. I am waitng for your reply.

I think it's going to be easier to do this without applets, using JavaScript and direct DOM manipulation. If you're set on using applets, then LiveConnect and the Common DOM API can help.