I think you have waited for a long time to see this useful widget, maybe you have seen the "Google translate" online.But now there is a widget allows you to put the translate right on your blog.It is so cool!
The pic below shows you how it works on your blog.
Ok now go to blogger and login --->Layout--->Page Elements--->Add A Gadget--->HTML/Java Script and add this code:
Subcribe me now !!!!!!!!!!!!!