google hurts me ,blogspot may help me.But...

Hey ,guys. My first post here on BHW .
I had build a blog from blogspot ,and got good ranking for my niche now.I had done 301 part to my own domain, but there's always a pop-up message when the redirect starts.
any idea to make the blogspot 301 redirect to my own domain without any message? So the visit will not even found it's a redirect. I do appreciate any answer.

I remember doing java script redirection a while ago for one blogger blog and it was working very well. But keep in mind that your ranking will suffer if you do a redirection and i think you blog even may get banned for doing redirection.

yes , thank you for your answer.
i tried script ,and it got banned immediately.