My profile is hijacked

Hello,
i am sreeman my account has been hacked in the frnd list one of my frnd has send me a link when i use to clik in the link then my account has been loged out then it seems like d player that the boys and girls are dancing in the web page at the place of orkut when i logged on then it logged out so plz help me the person who is using my id has written very slang languages which is harmful for me