Hacked!

I had been silent all these days as I had become really very busy in college tasks. But I could not keep away from my blog regarding what had happened yesterday evening. This incident gave me ready answers as to how google accounts are so vulnerable regarding password security. Most of the password hacking takes place through Orkut.I have an orkut account but I dont use it so much.This might be the reason as to why my account had become an easy soft target for various orkut users who use it mainly for misuse and hacking of one's account.Yesterday I got a series of scrapbook entries.I then opened my account only to see that there were 20 communities listed in "My Communities" tab instead of my preset 5. When I opened to unjoin them.I found all of them were owned by some Upal Chakraborty.The number of members in each community were 56000 within 10 days of its creation. Strange! I got to know at this point of time that my gmail password has been hacked. I opened his webpage listed in his profile(A great blunder,I shouldn't have done!).In his webpage he had many "Tricks and tips" regarding hacking. In the first 3 points there were really very useful information regarding the topic.But in the penultimate point which he claimed to be another trick he provided some javascript and asked to paste it in the address bar and press Enter. I tried it out. And Alas! A message box appeared on my screen saying "You Are Hacked!" I am utterly confused on what will be its effects and what shall I do now.